Navigational warnings, week 2026-W34

2026-08-17 to 2026-08-23 UTC

08-17
23
08-18
12
08-19
36
08-20
34
08-21
22
08-22
16
08-23
9

issued: 152
cancelled: 429
in force at end: 470
of these still in force: 14

Issued · by type

Exercises	33
Missiles	25
Surveys	25
Quakes	13
Icebergs	12
Nav aids	11
Derelicts	7
Other	7
Debris	5
Cable ops	5
Spills	3
Storms	2
Piracy	2
Wrecks	1
Containers	1

Issued · by sea

North Pacific Ocean	28
South Atlantic Ocean	27
North Atlantic Ocean	11
Arabian Sea	9
Indian Ocean	7
Southern Ocean	5
Flores Sea	5
Philippine Sea	5

HYDROLANT 38 · HYDROPAC 34 · NAVAREA IV 16 · NAVAREA XII 15 · USGS earthquakes 13 · NAVAREA XI 12 · HYDROARC 8 · AUSCOAST 7 · NAVAREA III 3 · NOAA IncidentNews 3 · UKWZ 1 · NAVAREA I 1 · NAVAREA X 1

Issued · 152

Nav aids · NAVAREA III 125/26in force00:00Z
In the central Mediterranean Sea, the Sellia Marina NAVTEX station is out of service until further notice.
Central Mediterranean Sea
Surveys · NAVAREA III 122/26in force00:00Z
Drilling operations by Abdulhamid Han rig with support vessels in Black Sea from 19 Aug to 27 Nov 26, requesting 10 nautical mile clearance.
Black Sea
Surveys · NAVAREA III 123/26in force00:00Z
Drilling operations by KANUNI platform in Black Sea from 18 Aug 26 to 07 Oct 26, 10 nautical mile wide berth requested.
Black Sea
Quakes · USGS-USD0015EAY00:46Z
73 km nnw of ende, indonesia
Other · AUSCOAST 276/26in force03:08Z
Eight 6-meter yellow buoys with flashing lights deployed within 1.5 nautical miles of 39-50.14 S 145-48.24 E; 2.5 nautical miles clearance requested.
Surveys · NAVAREA I 173/26in force04:40Z
A corrected list of drilling rigs in the North Sea, Norwegian Sea, and west of Great Britain as of August 17, 2026, with safety zones.
Riglist
Missiles · HYDROPAC 2388/2607:39Z
Hazardous space debris operations are occurring in the Eastern Indian Ocean, South Pacific, and Tasman Sea from Aug 25 to Aug 31.
Eastern Indian Ocean · South Pacific · Tasman Sea
Surveys · AUSCOAST 277/26in force08:16Z
Drill rig Transocean Equinox is located at 38-46.20S 142-48.80E, with 2.5 nautical miles clearance requested.
Surveys · HYDROLANT 1592/2609:00Z
Underwater operations by vessels Spar Aries and Comando B occur daily from 1100Z to 2100Z, 18-28 August, at 20-48.85S 040-27.23W, wide berth requested.
South Atlantic · Brazil
Missiles · HYDROLANT 1593/2609:53Z
Space debris hazardous operations occur in the South Atlantic from 19 through 29 August, daily between 2100 and 1800 UTC, within a defined area.
South Atlantic
Exercises · UKWZ 501/26in force11:35Z
Live weapons firings occur daily from 0700 to 1700 UTC, 18-21 August, within 17 miles of 57-24.9N 007-59.7W west of South Uist in the Hebrides.
Hebrides · South Uist Westwards
Exercises · HYDROPAC 2358/2611:52Z
Hazardous operations daily from 0830 to 1030 UTC on 19 and 21 August in Andaman Sea area.
Andaman Sea · Burma · India
Other · HYDROPAC 2360/2612:17Z
A fairway buoy in the Arabian Sea off India at 17-34.34N 073-04.58E is missing.
Arabian Sea · India
Quakes · USGS-USD0015EDQ12:38Z
72 km e of petropavlovsk-kamchatsky, russia
Exercises · HYDROLANT 1595/2613:05Z
Hazardous operations daily from 0700 UTC to 1700 UTC on 18 through 21 August within 17 miles of 57-24.90N 007-59.70W near Scotland.
North Atlantic · Scotland
Piracy · HYDROPAC 2361/2613:16Z
On 17 August, a vessel was attacked near 08-14.54N 050-11.70E in the eastern Indian Ocean off Somalia; vessels should keep clear and exercise caution.
Eastern Indian Ocean · Somalia
Exercises · HYDROPAC 2362/2613:30Z
Hazardous operations are in progress in the Red Sea off Saudi Arabia in a bounded area until further notice.
Red Sea · Saudi Arabia
Exercises · HYDROPAC 2415/2616:02Z
Gunnery exercises take place in the Coral Sea near New Caledonia from August 24 to 28 within areas around specified coordinates.
Coral Sea · New Caledonia
Exercises · NAVAREA XII 560/2616:51Z
Hazardous operations occur in the North Pacific from 19 to 21 August in multiple areas with specific coordinates.
North Pacific
Exercises · NAVAREA XII 561/2617:15Z
Hazardous operations are in effect off California from August 22 to 24, with alternate times daily, within a defined area.
North Pacific · California
Missiles · HYDROARC 174/2617:44Z
Rocket launching hazardous operations in Barents Sea, Russia, are active from August 19 to 30 in specified areas.
Barents Sea · Russia
Nav aids · HYDROLANT 1598/2620:26Z
NAVTEX station Sellia Marina in the Ionian Sea, Italy, is off air at coordinates 38-52.21N 016-43.06E.
Ionian Sea · Italy
Nav aids · NAVAREA IV 798/2621:07Z
Guaranao Light in Venezuela, at 11-40N 070-12.8W, is unlit.
Caribbean Sea · Venezuela
Surveys · HYDROLANT 1599/2600:03Z
Underwater operations by vessels Comando B and AM Kirti occur daily 0800Z to 1800Z until 29 August at 20-19.03S 040-08.77W; wide berth requested.
South Atlantic · Brazil
Surveys · HYDROLANT 1600/2600:34Z
Underwater operations are conducted daily from 0800 UTC to 1800 UTC until 28 August by vessels Spar Aries and Comando B at 20-48.85S 040-27.23W; wide berth requested.
South Atlantic · Brazil
Quakes · USGS-US6000TLKL05:02Z
95 km sw of puerto madero, mexico
Quakes · USGS-US6000TLKT06:02Z
154 km sse of teluk dalam, indonesia
Nav aids · AUSCOAST 278/2608:52Z
Table Cape Light K3532 at 40-56.80S 145-43.74E is unreliable.
Exercises · HYDROPAC 2370/2610:41Z
Hazardous operations are taking place in the Andaman Sea, India, from 211030Z to 211130Z August in an area bounded by coordinates.
Andaman Sea · India
Missiles · HYDROPAC 2372/2614:02Z
Rocket launching operations occur in the eastern Indian Ocean near India from 0530Z to 0700Z on 21 August.
Eastern Indian Ocean · India
Surveys · NAVAREA IV 799/2614:34Z
Underwater operations by vessel Atlantis are underway near 37-32.00N 074-14.00W in Delaware from August 30 to September 18, wide berth requested.
North Atlantic · Delaware
Missiles · HYDROARC 175/2617:56Z
Rocket launching hazardous operations in Barents Sea off Russia from August 23 to 30, with daily time windows.
Barents Sea · Russia
Debris · HYDROLANT 1606/2619:05Z
Object adrift in Black Sea near Romania at 43-51.90N 030-44.00E as of 14:30 UTC on August 18.
Black Sea · Romania
Icebergs · NAVAREA IV 801/2619:25Z
Iceberg limits and sea ice limits are set along tracklines in the North Atlantic; report ice sightings to Canadian Coast Guard until August 26.
Nav aids · NAVAREA IV 802/2620:15Z
NAVTEX station Miami is off air; NAVAREA IV warning 800/26 is canceled.
Western North Atlantic · Florida
Spills · NOAAORR-1120400:00Z
On August 19, 2026, a truck rollover spilled about 3,000 gallons of gasoline in Lawrence, New York, entering Hook Creek.
Overturned Fuel Truck; Lawrence, New York
Spills · NOAAORR-1120500:00Z
As of August 19, 2026, M/V SLNC York, taking on water near 26N 152E, may leak lube and marine gas oil; aid is en route.
Potential Release From Motor Vessel In Distress; Pacific Ocean · Pacific Ocean
Exercises · NAVAREA XII 572/2600:15Z
Hazardous operations will take place near Hawaii from 27 to 31 August in a defined area; the message cancels on September 1.
North Pacific · Hawaii
Missiles · HYDROARC 176/2600:47Z
Rocket launching operations are held daily until August 23 in a Barents Sea area off Russia.
Barents Sea · Russia
Missiles · NAVAREA IV 803/2601:36Z
Rocket launching hazardous operations are scheduled off Florida on August 20, 15:19-20:01 UTC, with alternate windows through August 26, in two areas.
North Atlantic · Florida
Missiles · HYDROLANT 1608/2603:43Z
Space debris hazard operations are in effect in the South Atlantic from August 19 to August 30.
South Atlantic
Icebergs · HYDROLANT 1609/2604:30Z
Icebergs A84, A85, D33A, D33C reported in Scotia Sea, South Atlantic, South Pacific, Antarctica; message cancels August 26, 2026.
Scotia Sea · South Atlantic · South Pacific · Antarctica
Surveys · AUSCOAST 279/26in force05:23Z
Special purpose vessel Fugro Kwilena is conducting underwater operations in area from 19-47.68S 115-12.91E to 19-57.87S 115-25.37E, requesting 1.5 nautical mile clearance.
Surveys · HYDROPAC 2373/2605:34Z
Survey operations by vessel Fugro Kwilena are underway in the eastern Indian Ocean off Australia; a two-mile berth is requested, cancelling warning 2157/26.
Eastern Indian Ocean · Australia
Debris · HYDROLANT 1611/2607:18Z
An object is adrift in the Black Sea near Romania at 44-03.55N 029-56.33E, reported August 18, cancellation August 22.
Black Sea · Romania
Icebergs · HYDROARC 177/2607:23Z
Icebergs reported in Laptev Sea at 79-07.70N 109-47.60E and 79-00.60N 110-02.70E on Aug 19.
Laptev Sea
Missiles · NAVAREA IV 806/2607:42Z
Hazardous rocket launching operations are scheduled from August 25 to 31 in areas off Florida, with alternate windows.
North Atlantic · Florida
Exercises · HYDROPAC 2374/2608:29Z
Hazardous operations occur daily from 0100Z to 1300Z, 25-27 August, within three miles of two positions near Guam.
North Pacific · Philippine Sea · Guam
Exercises · HYDROPAC 2410/2608:40Z
Hazardous operations are underway in the North Pacific near the Northern Mariana Islands from 270200Z to 270600Z August, cancelled at 270700Z.
North Pacific · Northern Mariana Islands
Nav aids · HYDROLANT 1612/2609:03Z
Ponta de Mucuripe Light in Brazil is unreliable until 15 February 2027; this message cancels on 16 February 2027.
South Atlantic · Brazil
Nav aids · HYDROLANT 1613/2609:16Z
Ponta da Gameleira Light in western South Atlantic off Brazil is unlit until February 15, 2027.
Western South Atlantic · Brazil
Surveys · HYDROLANT 1614/2609:21Z
Underwater operations by vessels Hui An and Comando B are ongoing daily from 20 August to 3 September in South Atlantic, Brazil, at 20-23.17S 040-10.02W, wide berth requested.
South Atlantic · Brazil
Surveys · HYDROLANT 1615/2609:26Z
Underwater operations daily from 20 August to 3 September, 1100 to 2100 UTC, by vessels Comando B and Linden Trader at 20-22.98S 040-08.73W. Wide berth requested.
South Atlantic · Brazil
Surveys · HYDROLANT 1616/2609:29Z
Underwater operations daily 20 Aug through 03 Sep by vessels Charlie and Comando B in 20-24.27S 040-09.57W, wide berth requested.
South Atlantic · Brazil
Exercises · HYDROPAC 2376/2611:06Z
In the Arabian Sea, hazardous operations occur from 20 to 24 August within a defined area.
Arabian Sea
Exercises · HYDROPAC 2377/2611:17Z
Hazardous operations are underway in the Arabian Sea near India from August 20 to 24 in two specified areas.
Arabian Sea · India
Exercises · HYDROPAC 2378/2611:28Z
Hazardous operations are taking place in the Arabian Sea off India from August 20 to 24, 2026, in a defined area.
Arabian Sea · India
Exercises · HYDROPAC 2379/2611:35Z
Hazardous operations are taking place in two areas of the Arabian Sea off India from August 20 to August 24, 2026.
Arabian Sea · India
Missiles · NAVAREA XI 372/2612:00Z
Rocket firing is scheduled daily on August 23 and 29 from 2200Z to 1300Z within 25 miles of 31-14-14N 144-26-48E in the North Pacific near Nanpo Shoto.
North Pacific, Nanpo Shoto
Exercises · HYDROPAC 2380/2612:00Z
Hazardous operations are scheduled from 04:30 to 11:30 Universal Time on 22 and 23 August in the eastern Indian Ocean off India.
Eastern Indian Ocean · India
Derelicts · HYDROPAC 2381/2612:22Z
A 465-foot motor vessel named SLNC York is adrift at 26-43.90N 151-56.10E as of 19 August.
North Pacific
Derelicts · HYDROPAC 2382/2612:38Z
A derelict orange lifeboat is adrift at 26-41.81N 152-04.40E as of 190000Z August, with cancellation effective 221240Z August.
North Pacific
Icebergs · HYDROLANT 1617/2612:47Z
Icebergs reported in South Atlantic, Antarctica, South Shetland Islands at positions including 60-01S 051-24W and 58-53S 050-59W; cancellation at 201247Z August 26.
South Atlantic · Antarctica · South Shetland Islands
Missiles · HYDROPAC 2383/2613:29Z
Rocket launching operations occur within 25 miles of 31-14.14N 144-26.48E on 23 and 29 August from 2200Z to 1300Z daily.
North Pacific
Derelicts · NAVAREA XI 373/2614:00Z
Derelict bulk carrier, about 140 meters long, adrift at 26-43.9N 151-56.1E in North Pacific near Minamitori Shima, as of August 19; message cancels August 22.
North Pacific, Minamitori Shima
Exercises · HYDROLANT 1618/2615:16Z
Hazardous operations take place daily 0800Z to 1830Z from 24 to 28 August and 31 August to 4 September near two positions off Scotland, cancelling HYDROLANT 1610/26.
North Atlantic · Scotland
Quakes · USGS-US6000TLXQ16:17Z
45 km nne of ruteng, indonesia
Icebergs · NAVAREA IV 804/2620:03Z
North American Ice Service bulletin lists iceberg and sea ice limits along tracklines in the North Atlantic, valid until August 21, 2026.
Quakes · USGS-US6000TM0U22:45Z
29 km nne of ruteng, indonesia
Surveys · HYDROLANT 1619/2623:10Z
Underwater operations are underway until 280259Z August by vessel Siem Pilot at 24-35.02S 042-15.37W; wide berth requested.
South Atlantic
Surveys · HYDROLANT 1620/2623:34Z
Survey operations in the South Atlantic by vessel Sea 1 Dorado until 24 August, wide berth requested.
South Atlantic
Missiles · NAVAREA XI 374/2600:00Z
A missile firing warning for the North Pacific near Hokkaido is canceled, including warning 0369/26.
North Pacific, Hokkaido
Surveys · HYDROLANT 1621/2600:06Z
Vessel NOMAR is conducting underwater operations daily until 25 August at 24-07.27S 046-09.30W off Brazil in the South Atlantic. Wide berth requested.
South Atlantic · Brazil
Missiles · HYDROARC 178/2600:38Z
Rocket launching hazardous operations occur in Barents Sea near Russia on July 21-30, with daily time windows, in two areas.
Barents Sea · Russia
Quakes · USGS-US6000TM1J02:46Z
32 km nne of ruteng, indonesia
Icebergs · HYDROLANT 1623/2604:10Z
Icebergs reported in Scotia Sea, South Atlantic, South Pacific, Antarctica at positions A84, A85, D33A, D33C. Cancel message 210411Z Aug 26.
Scotia Sea · South Atlantic · South Pacific · Antarctica
Missiles · NAVAREA XII 563/2605:37Z
Hazardous rocket launching operations are scheduled off California on August 25-31 with multiple time windows and three designated areas.
North Pacific · California
Debris · NAVAREA XII 564/2605:49Z
A fish aggregating device is adrift near 04-21.66N 081-47.40W as of 191700Z August.
North Pacific
Missiles · NAVAREA XI 375/2608:00Z
A potential ballistic missile launched from North Korea may fall in the Japan Sea, East China Sea, and North Pacific; vessels should keep clear and report to Japan Coast Guard.
Japan Sea, East China Sea and North Pacific, Japan
Missiles · NAVAREA XI 376/2608:00Z
A missile from North Korea may have landed in Japan Sea, East China Sea, North Pacific; vessels keep clear and report to Japan Coast Guard.
Japan Sea, East China Sea and North Pacific, Japan
Exercises · HYDROPAC 2390/2608:46Z
Hazardous operations occur daily 0100Z to 1300Z from 24 to 27 August within three miles of two positions near Guam.
North Pacific · Philippine Sea · Guam
Exercises · HYDROPAC 2391/2609:09Z
Gunnery exercises in Coral Sea near New Caledonia from August 24 20:00 UTC to August 28 08:00 UTC.
Coral Sea · New Caledonia
Surveys · HYDROLANT 1625/2609:36Z
Underwater operations daily from 21 August to 4 September by two vessels at 20-23.95S 040-10.83W in the South Atlantic, wide berth requested.
South Atlantic · Brazil
Exercises · HYDROLANT 1626/2609:42Z
Hazardous operations are underway from August 25 0900Z to August 27 2100Z within seven miles of 24 degrees 26.04 minutes South, 045 degrees 39.91 minutes West.
South Atlantic · Brazil
Missiles · NAVAREA X 96/2610:11Z
Space debris danger area 100 nautical miles either side of a line in the Southern Ocean from Cape Darnley to Tasmania, daily 25-31 August 2026 0809-1608 UTC.
Missiles · HYDROPAC 2392/2610:38Z
Space debris hazard operations occur daily from Aug 25 to 31, 1002Z to 1607Z, in the South Pacific.
South Pacific
Nav aids · HYDROLANT 1627/2610:52Z
Jericoacoara light at 02-47.28S 040-29.98W is unlit.
South Atlantic · Brazil
Exercises · HYDROPAC 2393/2611:25Z
Exercise warning in Lakshadweep, Eastern Indian Ocean, is cancelled as of 210830Z August 26.
Eastern Indian Ocean · Lakshadweep
Piracy · HYDROPAC 2394/2611:37Z
A vessel is hijacked by six pirates in the Arabian Sea off Yemen at 14-32N 051-28E; vessels keep clear and exercise caution.
Arabian Sea · Yemen
Exercises · HYDROLANT 1643/2611:53Z
In Baltic Sea, Lithuania: hazardous operations daily 0900-1500 UTC August 27 and 28 near 55-29.60N 020-51.00E; wide berth requested. Message cancels August 26 at 1600 UTC.
Baltic Sea · Lithuania
Missiles · NAVAREA XI 377/2612:00Z
Missile firing is scheduled daily in Japan Sea from August 25-30, 1400Z to 0800Z, in a defined area bounded by coordinates and shore.
Japan Sea
Missiles · HYDROPAC 2395/2612:10Z
Missile operations occur daily from 1400Z to 0800Z, 25 through 30 August, in the Sea of Japan.
Sea of Japan · Russia
Exercises · NAVAREA XII 566/2613:02Z
Hazardous operations are scheduled from 25 August 14:00 to 20:00 UTC, with alternate 26 August 14:00 to 20:00 UTC, within 56 miles of 35-35N 121-56W.
North Pacific · California
Exercises · NAVAREA XII 567/2613:21Z
Hazardous operations are scheduled off California on August 25 from 1300 to 2100 UTC, with alternate on August 26, in a bounded area.
North Pacific · California
Surveys · AUSCOAST 280/26in force13:27Z
Drill rig Valaris 107 is at position 38 degrees 17.79 minutes south, 147 degrees 40.57 minutes east, requesting 2.5 nautical miles clearance.
Icebergs · HYDROLANT 1629/2613:49Z
Icebergs are reported at multiple positions in the Scotia Sea, South Atlantic, Antarctica; this message cancels on 21 August.
Scotia Sea · South Atlantic · Antarctica
Debris · HYDROPAC 2398/2614:15Z
A warning about wooden debris adrift at 25-13.12N 056-29.18E in the Gulf of Oman off the United Arab Emirates is cancelled on 23 August.
Gulf of Oman · U.A.E
Cable ops · NAVAREA IV 807/2615:21Z
From August 25 to September 8, the cableship Wave Sentinel is conducting cable operations near 29-12.78N 087-58.33W in the Gulf of America, requesting wide berth.
Gulf of America · Alabama
Storms · HYDROPAC 2400/2616:34Z
Due to Tropical Storm Saudel, the ports of Saipan and Tinian are closed.
Containers · HYDROPAC 2401/2616:58Z
A partially submerged container is adrift at 18-55.16N 071-55.61E in the Arabian Sea near India, as of 20 Aug 04:00 UTC.
Arabian Sea · India
Cable ops · NAVAREA XII 568/2617:25Z
Cable ship IT Intrepid conducts cable operations in Chukchi Sea, Alaska, from August 22 to September 2, requesting one mile berth.
Chukchi Sea · Alaska
Storms · NAVAREA XI 378/2618:00Z
Due to a tropical storm, the ports of Saipan and Tinian in the Marianas are closed until further notice.
North Pacific, Marianas
Quakes · USGS-US6000TM8H18:12Z
68 km nnw of ende, indonesia
Exercises · NAVAREA XII 569/2618:27Z
Hazardous operations will occur off California from August 25 to August 28, with alternate times on August 26 and 27.
North Pacific · California
Icebergs · NAVAREA IV 809/2619:06Z
As of August 21, North American Ice Service reports iceberg and sea ice limits along tracklines, requests ice reports, cancels August 22.
Spills · NOAAORR-11206in force00:00Z
In August 2026, the fishing vessel Resolution beached off Point Reyes, California, with 1,000 gallons of diesel fuel aboard, posing an oil threat.
F/V Resolution; Inverness, California
Missiles · NAVAREA XI 379/2600:00Z
Space debris operations are hazardous in the South China Sea and western North Pacific from 23 Aug 23:00 to 24 Aug 05:00 UTC, then cancelled at 06:00 UTC.
South China Sea, Northern Part and North Pacific, Western Part
Missiles · HYDROPAC 2402/2600:22Z
Hazardous operations with space debris in the North Pacific, Philippine Sea, and South China Sea near the Philippines from Aug 23 2300Z to Aug 24 0500Z.
North Pacific · Philippine Sea · South China Sea · Philippines
Nav aids · HYDROLANT 1634/2600:39Z
A data buoy is temporarily established in the South Atlantic off Brazil at 21-34.20S 040-43.62W until 21 August 2027.
South Atlantic · Brazil
Exercises · HYDROLANT 1635/2601:08Z
Hazardous operations are conducted within two miles of 21-52.50S 040-50.30W from 222300Z to 230800Z August.
South Atlantic · Brazil
Other · AUSCOAST 281/2601:20Z
Booby Island tide gauge at position 10-36.15S 141-54.61E is inoperative.
Other · AUSCOAST 282/2601:30Z
Booby Island weather station at position 10-36.15S 141-54.61E is inoperative.
Surveys · HYDROLANT 1636/2601:39Z
Survey operations are in progress in the South Atlantic by the vessel Sea 1 Dorado until 24 August in an area bounded by coordinates; wide berth requested.
South Atlantic
Icebergs · HYDROLANT 1637/2604:18Z
Icebergs reported in Scotia Sea, South Atlantic, South Pacific, and Antarctica at four positions; this message cancels August 26.
Scotia Sea · South Atlantic · South Pacific · Antarctica
Wrecks · HYDROARC 180/2609:34Z
Depths of 5.5 meters at 73-02.72N 080-34.31E and 5.7 meters at 73-02.48N 080-33.76E are reported in the Kara Sea, Russia.
Kara Sea · Russia
Surveys · HYDROLANT 1639/2610:42Z
Underwater operations daily from 22 August to 5 September by vessels Comando B and True Chariot at 20-18.87S 040-08.17W in South Atlantic. Wide berth requested.
South Atlantic · Brazil
Exercises · HYDROPAC 2404/2610:48Z
Hazardous operations in Arabian Sea off India from 250030Z to 261630Z August in area bounded by coordinates, warning cancels at 261730Z August.
Arabian Sea · India
Exercises · HYDROPAC 2405/2610:59Z
Hazardous operations are conducted daily 0230Z-0800Z from 25 to 27 August in eastern Indian Ocean off India, bounded by 10-20N 075-00E to 10-50N 075-35E.
Eastern Indian Ocean · India
Exercises · HYDROPAC 2406/2611:16Z
Hazardous operations are scheduled in the Bay of Bengal, India, from 22 August 06:00 to 12:30 UTC.
Bay of Bengal · India
Other · HYDROPAC 2407/2612:20Z
Naval operations in the Arabian Sea off Pakistan on August 23 from 02:00 to 13:00 UTC.
Arabian Sea · Pakistan
Icebergs · HYDROARC 181/2612:33Z
An iceberg is reported in the Laptev Sea, Russia, at 78-00.90N 105-01.70E on August 21 at 1108.
Laptev Sea · Russia
Icebergs · HYDROLANT 1640/2612:50Z
Icebergs reported at multiple positions in Scotia Sea, South Atlantic, Antarctica; warning cancels 241125Z AUG 26.
Scotia Sea · South Atlantic · Antarctica
Quakes · USGS-US6000TMLU17:41Z
194 km sw of labuan, indonesia
Exercises · NAVAREA XII 585/26in force18:06Z
Hazardous operations are occurring off California in the North Pacific from September 1 to October 1 within a specified area.
North Pacific · California
Exercises · NAVAREA XII 584/26in force18:31Z
Hazardous operations off California in an area bounded by 32-40N to 32-55N and 118-15W to 118-35W from September 1 to October 1.
North Pacific · California
Exercises · NAVAREA XII 586/26in force19:37Z
Hazardous operations are underway off California from September 1 0800 UTC to October 1 0800 UTC in a defined area.
North Pacific · California
Missiles · NAVAREA XII 587/26in force23:38Z
Rocket launching hazardous operations are underway off California in the North Pacific from September 1-7, with alternate times, cancelling at 1217Z September 7.
North Pacific · California
Nav aids · NAVAREA IV 813/2607:34Z
In Gulf of America, Louisiana, U.S. Coast Guard New Orleans remote communication facility at 29-53N 089-57W has unreliable high-frequency digital selective calling services as of August 21, 2026.
Gulf of America · Louisiana
Quakes · USGS-US6000TMRN07:40Z
Earthquake magnitude 5.7 (mb) in 60.265S 047.259W, depth 10 km at 220740Z aug 26
Scotia Sea
Quakes · USGS-US6000TMRW08:22Z
Earthquake magnitude 6.2 (mww) in 60.379S 047.605W, depth 10 km at 220822Z aug 26
Scotia Sea
Other · NAVAREA IV 814/2610:30Z
Naval operations occur in the Caribbean Sea off Colombia from 261200Z to 262100Z August within a defined area.
Caribbean Sea · Colombia
Missiles · HYDROLANT 1644/2610:41Z
Rocket launching operations are in effect daily from 27 August to 6 September in areas of the North Atlantic.
North Atlantic
Surveys · HYDROLANT 1645/2610:57Z
Daily underwater operations from 0800 to 1800 UTC, August 23 through September 29, by vessels Comando B and BH Shijiazhuang near 20-23.47S 040-09.88W, wide berth requested.
South Atlantic · Brazil
Surveys · HYDROLANT 1646/2611:03Z
Underwater operations are being conducted daily from 0800Z to 1800Z by vessels Comando B and Marsanne near 20-24.25S 040-10.65W, Brazil, until 06 Sep; wide berth requested.
South Atlantic · Brazil
Surveys · HYDROLANT 1647/2611:10Z
Underwater operations daily 0800 to 1800 UTC from 23 Aug to 6 Sep by vessels Comando B and BH Shijiazhuang off Brazil at 20-23.80S 040-09.73W; wide berth requested.
South Atlantic · Brazil
Other · NAVAREA XI 382/2612:00Z
NAVAREA XI warning messages 0375/26 and 0376/26 are canceled.
Derelicts · NAVAREA XI 381/2612:00Z
Derelict bulk carrier removed near Minamitori Shima, North Pacific; warning 0373/26 and this message cancelled.
North Pacific, Minamitori Shima
Exercises · NAVAREA XI 380/2612:00Z
Hazardous operations are taking place in the Marianas area from 27 August 0200Z to 0600Z, with cancellation at 0700Z.
North Pacific, Marianas
Debris · HYDROLANT 1650/2614:36Z
A dangerous object is adrift in the Black Sea near Romania at 44-31.68N 029-33.28E, reported August 22.
Black Sea · Romania
Nav aids · HYDROARC 184/2614:52Z
At Inuvik, Canada (60-25.45N 064-50.50W), the Marine Communications and Traffic Services remote station has MF and HF radio services off air.
Canada
Quakes · USGS-US6000TMTA17:00Z
4 km n of toride, japan
Derelicts · NAVAREA IV 816/2621:24Z
A 26-foot derelict vessel is partially submerged and adrift at 32-51.60N 056-35.20W, at 222025Z Aug 22.
North Atlantic
Surveys · NAVAREA IV 817/2623:50Z
Survey operations continue in the Gulf of America off Louisiana until 31 Dec, with three vessels towing 400-meter cables; wide berth requested.
Gulf of America · Louisiana
Cable ops · NAVAREA XII 573/2600:26Z
Cable operations are underway by the vessel IT Integrity in the Chukchi Sea, Alaska, along a trackline, with a one-mile berth requested.
Chukchi Sea · Alaska
Surveys · HYDROLANT 1652/2610:47Z
Underwater operations are underway by vessels Spar Aries and Comando B in South Atlantic off Brazil at 20-23.87S 040-11.03W, daily 24 August to 7 September, wide berth requested.
South Atlantic · Brazil
Derelicts · NAVAREA IV 818/2611:01Z
Derelict vessel Vagabond is submerged and adrift at 13-34.78N 081-22.67W in the Caribbean Sea off Colombia; warning cancels at 1101 UTC on August 26.
Caribbean Sea · Colombia
Missiles · NAVAREA XI 384/2612:00Z
Hazardous operations with space debris are conducted in the South China Sea and western North Pacific on 25 August from 0000Z to 0600Z.
South China Sea, Northern Part and North Pacific, Western Part
Derelicts · HYDROPAC 2413/2613:38Z
A derelict vessel is adrift between Djamandjary and Mayotte via Mozambique Channel; reports to JRCC Madagascar or MRCC Cape Town; this warning cancels at 261338Z Aug 26.
Mozambique Channel · Madagascar · Mayotte
Quakes · USGS-US6000TMZ613:44Z
32 km ssw of honchō, japan
Cable ops · NAVAREA IV 819/2614:30Z
Cable operations by the ship Pierre de Fermat are in progress in the Caribbean Sea from Aruba to Florida until 29 August, with a wide berth requested.
North Atlantic · Caribbean Sea
Icebergs · NAVAREA IV 820/2619:03Z
Iceberg limits are established along tracklines in the North Atlantic, with reconnaissance from satellite August 26, report icebergs to Coast Guard.
Cable ops · NAVAREA XII 575/2621:51Z
Cable operations by M/V Grace occur in the North Pacific from August 27 to September 11, with a two-mile berth requested.
North Pacific

Cancelled · 429

Cable ops · NAVAREA XII 846/2400:00Z
Cable operations by vessel Rebecca are underway from October 26 to December 17 along a trackline in the Pacific Ocean near Fiji; wide berth requested.
Pacific Ocean · Fiji
Nav aids · NAVAREA IV 535/2400:00Z
In Eastern Caribbean Sea, Martinique's La Caravelle Light at 14-46.40N 060-52.90W range reduced to 16 miles.
Eastern Caribbean Sea · Martinique
Nav aids · NAVAREA IV 544/2400:00Z
An ocean data acquisition buoy has been established at 49 degrees 40.61 minutes north, 046 degrees 22.38 minutes west in the western North Atlantic.
Western North Atlantic
Wrecks · HYDROLANT 1033/2400:00Z
Western South Atlantic off Brazil: depths reported 18.9 meters at 21-54.68S 040-48.01W and 18.7 meters at 21-54.30S 040-48.17W.
Western South Atlantic · Brazil
Wrecks · HYDROLANT 1049/2400:00Z
Depths are reported off Brazil in western South Atlantic, ranging from 10.7 to 12.1 meters.
Western South Atlantic · Brazil
Surveys · HYDROLANT 1074/2400:00Z
Survey operations by vessel Siem Dorado continue in the Western South Atlantic until 23 November; wide berth requested.
Western South Atlantic
Wrecks · HYDROLANT 1143/2400:00Z
A submerged obstruction marked by yellow buoys is located at 45-39.63N 001-40.58W in the Bay of Biscay, France.
Bay of Biscay · France
Nav aids · HYDROLANT 1207/2400:00Z
Ponta da Galheta light at 27-34.55S 048-24.99W is unlit until 01 Dec.
Western South Atlantic · Brazil
Nav aids · HYDROLANT 1217/2400:00Z
Santana Light at 02-16.23S 043-37.43W is unlit until 03 Dec.
Western South Atlantic · Brazil
Nav aids · NAVAREA IV 659/2400:00Z
Cayo Paredon Grande Light at 22-29.00N 078-09.90W in Old Bahama Channel, Cuba is unlit.
Old Bahama Channel · Cuba
Nav aids · HYDROLANT 1279/2400:00Z
Estreito Light at 31 degrees 52.88 minutes south, 51 degrees 46.35 minutes west is unlit until December 9.
Western South Atlantic · Brazil
Wrecks · HYDROLANT 1300/2400:00Z
A depth of 13.2 meters was reported in the western South Atlantic off Brazil at 04-52.20S 036-23.05W.
Western South Atlantic · Brazil
Wrecks · NAVAREA XII 432/2400:00Z
A dangerous wreck is located in the Gulf of Panama at 08-52.32N 079-32.42W.
Gulf of Panama · Panama
Cable ops · NAVAREA IV 710/2400:00Z
Pipeline operations by vessel Olympic Challenger continue in the western North Atlantic until 09 November 2024.
Western North Atlantic
Surveys · NAVAREA IV 711/2400:00Z
Underwater operations by vessel Home Run P continue until 31 Dec in two areas off western North Atlantic; wide berth requested.
Western North Atlantic
Nav aids · NAVAREA IV 733/2400:00Z
Weather fax services are off air at U.S. Coast Guard remote communication facilities in Boston and New Orleans.
Western North Atlantic · Gulf of Mexico
Nav aids · NAVAREA XII 460/2400:00Z
Weather fax services are off air at U.S. Coast Guard remote communication facilities: Point Reyes (37-55N 122-44W) and Kodiak (57-46N 152-34W).
Eastern North Pacific · Gulf of Alaska
Cable ops · NAVAREA IV 744/2400:00Z
Pipeline operations by vessel Deep Blue continue until 27 November in area 08°N 057°W; wide berth requested.
Western North Atlantic
Cable ops · NAVAREA IV 745/2400:00Z
Pipeline operations by vessel Harvey Carrier are in progress until November 27 in the western North Atlantic, wide berth requested.
Western North Atlantic
Surveys · HYDROLANT 1421/2400:00Z
Survey operations continue until 23 Oct in the Black Sea off Turkey by vessels Barbaros Hayreddin Pasa, Tanux-1, and Kutsi Ilhan; five-mile berth requested.
Black Sea · Turkey
Nav aids · NAVAREA XII 474/2400:00Z
NAVTEX station Point Reyes, at 37 degrees 55 minutes north, 122 degrees 44 minutes west, is off air.
Eastern North Pacific · California
Cable ops · NAVAREA IV 759/2400:00Z
Pipeline operations by M/V Millie in western North Atlantic from July 5 to December 4 in area bounded by coordinates; wide berth requested.
Western North Atlantic
Wrecks · HYDROLANT 1425/2400:00Z
A dangerous wreck is located in the eastern North Atlantic off Morocco at 30-23.89N 009-41.40W.
Eastern North Atlantic · Morocco
Nav aids · NAVAREA IV 768/2400:00Z
Quita Sueno Bank light in western Caribbean Sea changed to two flashes every 6 seconds, 18 meters high, 12 miles range; cancels warning 178/24.
Western Caribbean Sea · Colombia
Cable ops · NAVAREA IV 782/2400:00Z
Pipeline operations by vessel Harvey Supplier from July 10 through December 9 in the western North Atlantic, wide berth requested.
Western North Atlantic
Surveys · NAVAREA IV 784/2400:00Z
Survey operations are underway in the Gulf of Mexico until 25 Jan 25 by vessels with submersibles; wide berth requested.
Gulf of Mexico
Surveys · HYDROLANT 1526/2400:00Z
Scientific moorings marked by buoys are established at seven positions in the Bay of Biscay, France.
Bay of Biscay · France
Derelicts · NAVAREA IV 808/2400:00Z
A nine-meter sailboat named Liza with white hull is partially submerged and aground in the eastern Caribbean Sea near Martinique at 14-37.58N 060-50.59W as of July 10.
Eastern Caribbean Sea
Surveys · NAVAREA IV 819/2400:00Z
Survey operations are in progress off Suriname until January 31, 2025, by vessels Sanco Star and Siddis Mariner.
Western North Atlantic · Suriname
Surveys · NAVAREA IV 820/2400:00Z
Survey operations by vessel GYRE are underway until October 20 off Suriname in the western North Atlantic; one mile berth requested.
Western North Atlantic · Suriname
Nav aids · NAVAREA IV 829/2400:00Z
In Hudson Bay, Canada, the Coral Harbour remote station has high frequency and medium frequency services off air as of 152130Z July.
Hudson Bay · Canada
Surveys · HYDROLANT 1613/2400:00Z
A scientific mooring is established at 44-10.03N 002-10.21W in the Bay of Biscay, France. A 500 meter berth is requested.
Bay of Biscay · France
Nav aids · HYDROLANT 1614/2400:00Z
An ODAS buoy is established at 01-27.36N 049-12.68W in the western North Atlantic off Brazil.
Western North Atlantic · Brazil
Nav aids · HYDROLANT 1618/2400:00Z
Le Stiff light at 48-28.46N 005-03.37W is unlit in the English Channel, France.
English Channel · France
Nav aids · NAVAREA IV 861/2400:00Z
Hudson Strait, Canada: Killinek remote station at 60-25.45N 064-50.50W has medium frequency services off air.
Hudson Strait · Canada
Surveys · HYDROLANT 1631/2400:00Z
A scientific mooring is established in the Celtic Sea at 47-35.83N 007-23.92W, requesting a wide berth.
Celtic Sea
Nav aids · HYDROLANT 1647/2400:00Z
In the eastern South Atlantic and southwestern Indian Ocean, the Cape Naval Weather Fax is off air.
Eastern South Atlantic · Southwestern Indian Ocean · South Africa
Nav aids · HYDROLANT 1660/2400:00Z
Ponta do Retiro Light at 21-21.58S 040-57.76W is unlit until 21 January 2025.
Western South Atlantic · Brazil
Nav aids · NAVAREA IV 901/2400:00Z
Cayo Fragoso Light at 22-48.40N 079-34.70W is unreliable.
Old Bahama Channel · Western North Atlantic · Cuba
Nav aids · NAVAREA IV 915/2400:00Z
NAVTEX station New Orleans at 29-53.10N 089-56.70W in the Gulf of Mexico off Louisiana is off air.
Gulf of Mexico · Louisiana
Surveys · HYDROLANT 1734/2400:00Z
Survey operations are underway in the Black Sea off Romania until December 31 by vessels MPSV Mamta and Canal Services 15, wide berth requested.
Black Sea · Romania
Wrecks · HYDROLANT 1740/2400:00Z
Two depths reported in Western South Atlantic near Brazil: 16.9 meters at 04-52.05S 036-22.42W and 13.5 meters at 04-52.05S 036-22.98W.
Western South Atlantic · Brazil
Nav aids · NAVAREA IV 977/2400:00Z
The U.S. Coast Guard's remote communication facility at Chesapeake, at 36-44N 076-01W, has unreliable medium and high frequency transmit and receive.
Western North Atlantic · Virginia
Nav aids · NAVAREA IV 978/2400:00Z
La Desirade lighthouse at 16-20.00N 061-00.33W is unlit.
Eastern Caribbean Sea · Guadeloupe
Exercises · NAVAREA IV 984/2400:00Z
Hazardous operations take place from 20-25 August and 24-29 September in the Gulf of Mexico off Mexico.
Gulf of Mexico · Mexico
Nav aids · NAVAREA IV 990/2400:00Z
Coast Guard remote communication facility Boston at 41-42.80N 070-30.30W has unreliable high frequency transmit services.
Western North Atlantic · Massachusetts
Nav aids · HYDROLANT 1808/2400:00Z
Racon at Cabo Sao Tome light, 22-02.50S 041-03.20W, is off air until 11 Feb 25.
Western South Atlantic · Brazil
Nav aids · HYDROLANT 1819/2400:00Z
Chui light at 33-44.60S 053-22.50W is unlit until 12 Feb 2025; this message cancels on 13 Feb 2025.
Western South Atlantic · Brazil
Exercises · HYDROLANT 1863/2400:00Z
Hazardous operations are in progress off Morocco until 31 December within a defined area.
Eastern North Atlantic · Morocco
Cable ops · HYDROLANT 1876/2400:00Z
Cable operations are underway by cableship Ile d'Ouessant in Bristol Channel and Celtic Sea along trackline 50-47.6N 004-33.4W to 50-31.2N 007-33.6W. Wide berth requested.
Bristol Channel · Celtic Sea · England
Exercises · HYDROLANT 1884/2400:00Z
Hazardous operations take place daily from 0700 UTC to 1800 UTC, September 1 through December 31, in three areas off Morocco in the eastern North Atlantic.
Eastern North Atlantic · Morocco
Cable ops · HYDROLANT 1906/2400:00Z
Exposed submarine cable in Bay of Biscay, France, along a trackline joining coordinates from 47-39.49N 004-39.75W to 47-36.38N 004-43.27W.
Bay of Biscay · France
Missiles · NAVAREA IV 1058/2400:00Z
Rocket launching hazardous operations occur daily from 00:50 to 02:20 UTC, September 4 to October 4, in two areas in the western North Atlantic.
Western North Atlantic
Nav aids · NAVAREA IV 1061/2400:00Z
Rosario Island light in Colombia now shows an occulting white light every 9 seconds, 14 meters high, visible for 12 miles.
Caribbean Sea · Colombia
Nav aids · HYDROLANT 1922/2400:00Z
In the Bay of Biscay, France, Navtex station Corsen at 48-28N 005-03W is off air; broadcasts are via Navarea II SafetyNet and SafetyCast.
Bay of Biscay · France
Nav aids · NAVAREA IV 1065/2400:00Z
Cayo Confites light at 22-11.30N 077-39.70W in Old Bahama Channel, Cuba is unlit.
Old Bahama Channel · Cuba
Surveys · HYDROLANT 1930/2400:00Z
Survey operations in progress until 30 Oct by vessel Anteos at 39-19.79N 007-50.60E in the Western Mediterranean Sea near Sardinia; wide berth requested.
Western Mediterranean Sea · Sardinia
Surveys · NAVAREA IV 1084/2400:00Z
Survey operations in Gulf of Mexico off Louisiana until 31 March 2025, with vessels towing 400-meter cables. Wide berth requested.
Gulf of Mexico · Louisiana
Nav aids · HYDROLANT 1940/2400:00Z
NAVTEX station Sao Miguel at 37 degrees 48.50 minutes north, 25 degrees 33.20 minutes west has medium and high frequency services off air.
Azores
Cable ops · HYDROLANT 1943/2400:00Z
Cable operations by cableship Bold Maverick are in progress off Brazil until February 3, 2025, at multiple positions; wide berth requested.
Western South Atlantic · Brazil
Nav aids · HYDROLANT 1946/2400:00Z
Contas Light at 14-16.44S 038-59.15W is unlit until March 4, 2025; message cancels March 5, 2025.
Western South Atlantic · Brazil
Nav aids · HYDROLANT 1947/2400:00Z
In the English Channel, England, at 49-55.70N 006-18.20W, medium frequency radio telephony and digital selective calling services at Scillies site are off air.
English Channel · England
Nav aids · NAVAREA IV 1090/2400:00Z
Punta Taima-Taima light at 11-30.20N 069-30.90W in Venezuela is unlit.
Caribbean Sea · Venezuela
Cable ops · HYDROLANT 1968/2400:00Z
Cable operations by cableship Leon Thevenin are underway off Angola in the Eastern South Atlantic from September 12 until further notice; wide berth requested.
Eastern South Atlantic · Angola
Nav aids · HYDROLANT 1975/2400:00Z
The Mucuri light at 18-03.61S 039-32.06W is unlit until 9 March 2025.
Western South Atlantic · Brazil
Other · HYDROLANT 1977/2400:00Z
Radar jamming exercises are held daily from 0800Z to 1700Z, 16 September to 11 October, within 25 miles of 57-21N 007-24W in the Sea of the Hebrides.
Sea of the Hebrides · Scotland
Nav aids · HYDROLANT 1980/2400:00Z
Quissama Light at 22-09.70S 041-17.90W is unlit until 10 March 2025, cancelling previous warnings.
Western South Atlantic · Brazil
Nav aids · HYDROLANT 1987/2400:00Z
The Barra de Itabapoana light in Brazil is unlit until 11 March 2025.
Western South Atlantic · Brazil
Nav aids · HYDROLANT 1989/2400:00Z
Corsewall Point Light in Scotland has its range temporarily reduced to 12 miles.
North Channel · Scotland
Surveys · HYDROLANT 2018/2400:00Z
Ramform Tethys is conducting survey operations towing cables off Angola until further notice; a three-mile berth is requested.
Eastern South Atlantic · Angola
Nav aids · HYDROLANT 2020/2400:00Z
GPS jamming exercises occur daily from 23 Sep to 4 Oct, 0730 to 1630Z, within 22 miles of 54-50N 004-56W in Irish Sea, North Channel, England.
Irish Sea · North Channel · England
Volcanic · HYDROPAC 3071/2400:00Z
Discolored water is reported at 31-26.40N 140-03.00E in Philippine Sea near Japan at 180545Z September; Hydropac 2440/24 is cancelled.
Philippine Sea · Japan
Volcanic · HYDROPAC 3072/2400:00Z
Possible volcanic activity reported in Philippine Sea near Japan at 31-26.30N 140-03.00E. Caution advised.
Philippine Sea · Japan
Nav aids · HYDROLANT 2024/2400:00Z
A data buoy is temporarily established in Brazil at 21-46.26 South 040-32.28 West, to be cancelled on August 25 at 0001Z.
Western South Atlantic · Brazil
Nav aids · HYDROLANT 2026/2400:00Z
Cabo Orange Light at 04-26.0N 051-32.2W is unlit.
Western North Atlantic · Brazil
Surveys · HYDROLANT 2035/2400:00Z
Survey operations in the Eastern North Atlantic from September 23 to October 16, wide berth requested.
Eastern North Atlantic
Cable ops · HYDROLANT 2041/2400:00Z
Cable operations are in progress by cable ship Ile de Batz in the Celtic Sea, eastern North Atlantic, along a trackline; wide berth requested.
Celtic Sea · Eastern North Atlantic
Missiles · NAVAREA IV 1194/2400:00Z
Hazardous rocket launching operations are scheduled in Western North Atlantic off Florida from October 5 to 11, with alternate dates, in two areas.
Western North Atlantic · Florida
Wrecks · HYDROLANT 2052/2400:00Z
A dangerous wreck is located in the western South Atlantic off Brazil at 07-43.17S 034-43.95W.
Western South Atlantic · Brazil
Missiles · NAVAREA IV 1195/2400:00Z
Hazardous space debris operations occur off Florida starting October 6, with windows through October 17, in areas within nine miles of various coordinates.
Gulf of Mexico · Western North Atlantic · Florida
Other · NAVAREA IV 1158/2400:00Z
Naval operations occur daily from 26 Sep to 18 Oct in two areas off Colombia in the Caribbean Sea, effective until 24 Oct.
Caribbean Sea · Colombia
Cable ops · HYDROLANT 2059/2400:00Z
Cable operations are in progress by cableship Ile de Sein along a trackline in the Gulf of Guinea until further notice; wide berth requested.
Eastern North Atlantic · Gulf of Guinea
Cable ops · HYDROLANT 2060/2400:00Z
In the eastern North Atlantic, cable operations by the ship Pierre de Fermat at 45-36N 015-14W are underway from 26 September, requesting one mile berth.
Eastern North Atlantic
Nav aids · HYDROLANT 2061/2400:00Z
Balbriggan Island light in the Irish Sea, Ireland, at 53-36.80N 006-10.80W is unreliable, and hydrolant warning 1802/24 is cancelled.
Irish Sea · Ireland
Exercises · HYDROLANT 2082/2400:00Z
Hazardous operations daily from 0600Z to 1100Z on October 3 and 4 in an area off Romania bounded by 43-47.50N 028-51.00E, 43-55N 029-08E.
Black Sea · Romania
Surveys · NAVAREA IV 1166/2400:00Z
Mobile offshore drilling units positions in NAVAREA IV are listed for September 25, 18:30 UTC; this cancels notice 1141/24.
Surveys · HYDROLANT 2065/2400:00Z
Survey operations are in progress until 31 Oct by vessel Ramform Vanguard towing cables in the Irish Sea off Ireland. Wide berth requested.
Irish Sea · Ireland
Exercises · HYDROLANT 2076/2400:00Z
Hazardous operations occur daily from 0800Z to 1900Z, 30 September through 4 October, within 60 miles of 57°17'N 009°18'W in the Eastern North Atlantic near Scotland.
Eastern North Atlantic · Scotland
Surveys · NAVAREA IV 1181/2400:00Z
Survey operations by the vessel Northern Franklin are underway in the eastern Caribbean Sea near Trinidad and Tobago from September 30 to October 31.
Eastern Caribbean Sea · Western North Atlantic
Nav aids · HYDROLANT 2077/2400:00Z
Punta Lantilla Light in the Canary Islands, at 28-13.80N 013-56.90W, is unlit.
Eastern North Atlantic · Canary Islands
Storms · NAVAREA IV 1190/2400:00Z
Due to Hurricane Helene, Panama City, Port Manatee, and Tampa are open with restrictions, St Petersburg has reopened, no ports closed.
Missiles · NAVAREA IV 1191/2400:00Z
Hazardous rocket launching operations occur off Florida in the Western North Atlantic from 041000Z to 041410Z October 4, and 1000Z-1410Z daily October 5-10, 2024.
Western North Atlantic · Florida
Other · HYDROLANT 2086/2400:00Z
Abandoned fishing gear marked by buoy in North Sea at 60-17.30N 001-58.50E; Hydrolant 2078/24 cancelled.
North Sea
Exercises · HYDROLANT 2087/2400:00Z
Hazardous operations in the Black Sea off Romania from 030500Z to 031400Z October in an area bounded by coordinates, and cancels HYDROLANT 2070/24.
Black Sea · Romania
Exercises · HYDROLANT 2091/2400:00Z
Hazardous operations take place daily from 0900 to 1500 on 01-04 October within 11 miles of 52-26.39N 004-49.50W in Cardigan Bay, Saint George's Channel, England.
Cardigan Bay · Saint Georges Channel · England
Surveys · HYDROLANT 2092/2400:00Z
Survey operations are in progress until 14 Oct by four vessels towing 12 cables of 10000 meters in North Atlantic; wide berth requested.
North Atlantic
Nav aids · HYDROLANT 2093/2400:00Z
Portpatrick NAVTEX station off air from 020800 to 031600 Oct, broadcasts from Cullercoats, cancel 031700 Oct 24.
North Channel · North Sea · England
Nav aids · NAVAREA IV 1196/2400:00Z
NAVTEX station Chesapeake at 36-44.00N 076-01.00W is off air, cancelling NAVAREA IV 750/24.
Western North Atlantic · Virginia
Surveys · HYDROLANT 2094/2400:00Z
Survey operations by vessel Artemis Odyssey towing six 186-meter cables continue in Western South Atlantic until 07 Oct; wide berth requested.
Western South Atlantic
Icebergs · HYDROLANT 2095/2400:00Z
Icebergs reported in Scotia Sea and Weddell Sea at several positions; this message cancels October 2, 2024.
Scotia Sea · Weddell Sea · Western South Atlantic · Antarctica
Icebergs · NAVAREA IV 1199/2400:00Z
Iceberg limits are posted along tracklines in the North Atlantic for October 2-3, 2024, and mariners should report icebergs to the Canadian Coast Guard.
Exercises · HYDROLANT 2096/2400:00Z
Hazardous operations occur off Brazil in western South Atlantic from October 5 to October 8 in area bounded by 24-47S 044-16W, 24-47S 043-20W, 25-17S 043-20W, 25-17S 044-16W.
Western South Atlantic · Brazil
Surveys · HYDROLANT 2097/2400:00Z
Underwater operations by M/V Puerto Real in Western South Atlantic off Brazil until 31 October; wide berth requested.
Western South Atlantic · Brazil
Surveys · HYDROLANT 2098/2400:00Z
Survey operations are underway until 13 October off Brazil, with four vessels towing 12 cables 3,500 meters long; wide berth requested.
Western South Atlantic · Brazil
Missiles · NAVAREA IV 1200/2400:00Z
Rocket launching operations off Florida from October 7 to 13, with alternate dates, create hazards in two designated areas.
Western North Atlantic · Florida
Surveys · NAVAREA XII 826/2400:00Z
The World Magnetic Model 2025 update will be released on December 17, 2024, and the current 2020 model expires December 31, 2024.
Nav aids · NAVAREA IV 533/2400:00Z
Cabo Tiburon light at 08-40.60N 077-21.50W is inoperative.
Caribbean Sea · Colombia
Exercises · NAVAREA XII 852/2400:00Z
Hazardous operations are ongoing until 27 Oct and 3 through 8 Dec in a bounded area of the Gulf of California, Mexico.
Golfo de California · Mexico
Exercises · NAVAREA XII 853/2400:00Z
Hazardous operations are underway off Mexico until 27 October and from 3 to 8 December in an area near 22°N 107°W.
Eastern North Pacific · Mexico
Exercises · NAVAREA XII 854/2400:00Z
Hazardous operations are underway until 27 October and 3 through 8 December in an area off Mexico bounded by 17-08N 102-30W to 17-00N 102-45W.
Eastern North Pacific · Mexico
Exercises · NAVAREA XII 855/2400:00Z
Hazardous operations are in progress off Mexico's coast in the eastern North Pacific until 27 Oct and 19-24 Nov, with a cancellation message on 25 Nov.
Eastern North Pacific · Mexico
Exercises · NAVAREA XII 856/2400:00Z
Hazardous operations are underway in the eastern North Pacific near Mexico until 27 October and December 3-8.
Eastern North Pacific · Mexico
Exercises · NAVAREA XII 857/2400:00Z
Hazardous operations are underway in the Eastern North Pacific near Mexico until 27 Oct and 19-24 Nov in a bounded area.
Eastern North Pacific · Mexico
Exercises · NAVAREA XII 867/2400:00Z
Hazardous operations are underway in the Eastern North Pacific off California until December 1, 2024.
Eastern North Pacific · California
Exercises · NAVAREA XII 868/2400:00Z
Hazardous operations are ongoing from November 1 to December 1 in an area off California bounded by coordinates near 32-55N 118-25W.
Eastern North Pacific · California
Exercises · NAVAREA XII 869/2400:00Z
Hazardous operations from November 1 to December 1 are active in a California offshore area bounded by coordinates.
Eastern North Pacific · California
Missiles · NAVAREA XII 893/2400:00Z
Space debris hazard operations are in effect from November 14 through December 5 in an Eastern Pacific area, with cancellation on December 6.
Eastern Pacific
Exercises · NAVAREA XII 895/2400:00Z
Hazardous operations will occur in the Gulf of California, Mexico, from November 19-24 and December 10-15 in a defined area.
Golfo de California · Mexico
Exercises · NAVAREA XII 896/2400:00Z
Hazardous operations from 19-24 November and 10-15 December in Gulf of California, Mexico, in area bounded by 25-34N 110-41W, 25-34N 110-30W, 25-25.5N 110-30W, 25-25.5N 110-41.5W.
Golfo de California · Mexico
Exercises · NAVAREA XII 897/2400:00Z
Hazardous operations occur 19-24 November and 10-15 December in an area bounded by 18-25N 104-50W, 18-15N 104-50W, 18-15N 104-30W, 18-25N 104-30W.
Eastern North Pacific · Mexico
Exercises · NAVAREA XII 899/2400:00Z
Hazardous operations are scheduled in the eastern North Pacific off Mexico from 19-24 November and 10-15 December, cancelled on 16 December.
Eastern North Pacific · Mexico
Exercises · NAVAREA XII 900/2400:00Z
Hazardous operations are scheduled from 19-24 November and 10-15 December in an area off Mexico near 15°N 095°W.
Eastern North Pacific · Mexico
Missiles · NAVAREA XII 905/2400:00Z
Missile operations are scheduled off California in the eastern North Pacific from 22 to 25 November, in a defined area.
Eastern North Pacific · California
Missiles · NAVAREA XII 908/2400:00Z
Hazardous space debris operations occur in the eastern North Pacific off Mexico from November 24 to 29.
Eastern North Pacific · Mexico
Nav aids · NAVAREA XII 910/2400:00Z
The NAVTEX station at Honolulu, Hawaii (21-26.1N 158-08.7W) is off air.
Eastern North Pacific · Hawaii
Exercises · NAVAREA XII 912/2400:00Z
Hazardous operations occur off California from Nov 22 to 25, 2024, in an area bounded by coordinates near 32-33N 119-121W.
Eastern North Pacific · California
Exercises · NAVAREA XII 914/2400:00Z
Off California, hazardous operations occur within 32 miles of 33-19N 120-05W until 260200Z Nov, alternate 262030Z to 270200Z Nov.
Eastern North Pacific · California
Exercises · NAVAREA XII 916/2400:00Z
Hazardous operations within 35 miles of 32-57N 120-41W in the Eastern North Pacific off California on November 27 from 1800 to 2200 UTC.
Eastern North Pacific · California
Wrecks · HYDROPAC 2134/2500:00Z
A dangerous wreck is located in the Arabian Sea near India at 18-53.65N 072-51.89E.
Arabian Sea · India
Nav aids · HYDROPAC 2970/2500:00Z
Ross Island Light at 11-40.90N 092-45.99E in Andaman Sea, India is unlit.
Andaman Sea · India
Surveys · HYDROPAC 3078/2500:00Z
Survey operations are underway in the Strait of Malacca until 30 Sep 2026 by vessel PXGEO 2 towing eight 5-mile-long cables; wide berth requested.
Strait of Malacca · Malaysia
Nav aids · HYDROPAC 3167/2500:00Z
Magallanes Radio in Chile, at 53-09.92S 070-54.28W, is off air. Previous warnings cancelled.
Eastern South Pacific · Chile
Surveys · HYDROPAC 103/2600:00Z
Drill rig Deep Sea Matdrill is aground in Gulf of Khambhat near 20-12.18N 072-01.83E.
Gulf of Khambhat · India
Nav aids · HYDROPAC 104/2600:00Z
Radar beacon and navigational telex station at Muttum Point (08-07N 077-19E) are inoperative.
Eastern Indian Ocean · India
Nav aids · HYDROPAC 108/2600:00Z
In India, the radar beacon at Pondicherry Light at 11-54.99N 079-49.85E is inoperative.
India
Surveys · HYDROPAC 123/2600:00Z
Underwater operations are underway in the eastern Indian Ocean by M/V Seven Sisters; a one-mile berth is requested.
Eastern Indian Ocean
Surveys · HYDROPAC 404/2600:00Z
Underwater operations by vessel Offshore Solution in Eastern Indian Ocean off Australia, bounded by coordinates 13-46S 123-01E to 14-04S 123-23E, until further notice. Two mile berth requested.
Eastern Indian Ocean · Australia
Nav aids · HYDROPAC 419/2600:00Z
In the Great Australian Bight, Australia, twelve yellow six-meter buoys flashing white every 3 seconds are placed within two miles of 39-13.33S 142-50.33E. Three-mile berth requested.
Great Australian Bight · Australia
Surveys · HYDROPAC 437/2600:00Z
Underwater operations are in progress by vessel PMG Emerald in Bass Strait, Australia, until further notice. A one-mile berth is requested.
Bass Strait · Australia
Nav aids · HYDROPAC 465/2600:00Z
Barrett Reef buoy at 41-21.15S 174-50.11E is missing in Cook Strait, New Zealand; Hydropac 461/26 canceled.
Cook Strait · New Zealand
Cable ops · HYDROPAC 493/2600:00Z
Cable operations are in progress in the Persian Gulf off Qatar along a trackline; wide berth requested.
Persian Gulf · Qatar
Nav aids · HYDROPAC 527/2600:00Z
Magallanes Radio in Chile at 53-09.92S 070-54.28W is off air, with medium and high frequency digital selective calling unavailable.
Eastern South Pacific · Chile
Nav aids · HYDROPAC 589/2600:00Z
Eight yellow buoys flashing white every 7 seconds, four meters high, are established near 19-45.73S 115-53.39E in Eastern Indian Ocean, Australia. Three mile berth requested.
Eastern Indian Ocean · Australia
Wrecks · HYDROPAC 590/2600:00Z
The vessel SHANMUKHA CSD IV is sunk at 11-15.52N 075-42.21E in the Eastern Indian Ocean on February 27.
Eastern Indian Ocean · India
Nav aids · HYDROPAC 683/2600:00Z
In the South Pacific, a DART II buoy at 20-41.74S 073-16.23W is temporarily removed.
South Pacific
Wrecks · HYDROPAC 692/2600:00Z
The vessel Sea Princess lies sunk at 19°04.90'N 072°44.90'E in the Arabian Sea, India.
Arabian Sea · India
Cable ops · HYDROPAC 766/2600:00Z
Pipeline operations by vessel Emerald are scheduled in Gulf of Khambhat, India, from 15 March to 30 April; wide berth requested.
Arabian Sea · Gulf of Khambhat · India
Cable ops · HYDROPAC 833/2600:00Z
Pipeline operations by barge LTB 300 and vessel AHT Maria 1 at 19-34.42N 071-21.78E in Arabian Sea, India, from 20 March to 31 May. Wide berth requested.
Arabian Sea · India
Cable ops · HYDROPAC 859/2600:00Z
Pipeline operations by barge and vessels are in effect in the Gulf of Khambhat, India from 21 March to 19 April, wide berth requested.
Arabian Sea · Gulf of Khambhat · India
Missiles · HYDROPAC 934/2600:00Z
Space debris hazard operations are underway from April 1-30 across areas of the eastern Indian Ocean, South Pacific, and Tasman Sea, with cancellation on May 1.
Eastern Indian Ocean · South Pacific · Tasman Sea
Surveys · HYDROPAC 924/2600:00Z
Underwater operations by several vessels in the Gulf of Khambhat, India, from March 27 through April 25; wide berth requested.
Arabian Sea · Gulf of Khambhat · India
Exercises · HYDROPAC 929/2600:00Z
Hazardous operations occur from 0300Z to 1900Z daily on 1-3, 6-10, 13-17, 20-24, 27-30 April in four areas off Pakistan in the Arabian Sea.
Arabian Sea · Pakistan
Exercises · HYDROPAC 936/2600:00Z
Gunnery exercises daily from 31 March to 29 April, 2300Z to 0900Z, in the North Pacific.
North Pacific
Exercises · HYDROPAC 937/2600:00Z
Hazardous operations occur daily on April 2, 9, 16, and 23 in Andaman Sea area bounded by coordinates, from 0400-0600 UTC and 0830-1030 UTC.
Andaman Sea · India
Nav aids · HYDROPAC 946/2600:00Z
Point Cloates light at 22-42.57S 113-40.86E is unlit and the prior warning is cancelled.
Eastern Indian Ocean · Australia
Other · HYDROPAC 947/2600:00Z
United States Coast Guard remote communication facility at Guam, 13-29N 144-50E, has weather message services interrupted.
North Pacific
Nav aids · HYDROPAC 952/2600:00Z
Manora Breakwater Light at 24-46.74N 066-58.96E is unlit.
Arabian Sea · Pakistan
Wrecks · HYDROPAC 958/2600:00Z
An uncharted rock is reported in Bass Strait, Australia, at 39 degrees 26.28 minutes south, 147 degrees 22.64 minutes east.
Bass Strait · Australia
Surveys · HYDROPAC 959/2600:00Z
Survey operations by vessels Sea Stallion and Sea Melody are in progress in the Arabian Sea off India until 15 May; wide berth requested.
Arabian Sea · India
Exercises · HYDROPAC 961/2600:00Z
Hazardous operations occur daily from 0001Z to 1600Z from April 1-30, except Fridays and Saturdays, in five areas off Bangladesh in the Bay of Bengal.
Bay of Bengal · Bangladesh
Cable ops · HYDROPAC 962/2600:00Z
Pipeline operations by M/V Akship 1 and M/V Seamec Glorious along a trackline off India from April 2 to May 10, 2026; wide berth requested.
Arabian Sea · India
Surveys · HYDROPAC 965/2600:00Z
Survey operations by vessel Vanessa 6 towing a 150-meter cable in the Gulf of Khambhat, Arabian Sea, India, from April 1 to 30, 2026; one mile berth requested.
Arabian Sea · Gulf of Khambhat · India
Surveys · HYDROPAC 967/2600:00Z
Survey operations by vessel Vanessa 7 are underway in Gulf of Khambhat, Arabian Sea, from 1 to 30 April, wide berth requested.
Arabian Sea · Gulf of Khambhat · India
Surveys · HYDROPAC 973/2600:00Z
Underwater operations by vessel Skandi Singapore are in progress at 20-07.71S 115-04.27E in the eastern Indian Ocean off Australia until further notice; a three mile berth is requested.
Eastern Indian Ocean · Australia
Cable ops · HYDROPAC 982/2600:00Z
Pipeline operations by vessel Coral Bay daily until April 20, 1900Z to 0700Z, along trackline from 17-41.01S 177-23.29E to 17-41.79S 177-23.30E. Wide berth requested. Cancel April 26.
South Pacific · Fiji
Cable ops · HYDROPAC 985/2600:00Z
Pipeline operations by tug ZD Aquarius in Gulf of Khambhat, India, from 2 April through 1 May; wide berth requested.
Arabian Sea · Gulf of Khambhat · India
Exercises · HYDROPAC 996/2600:00Z
Hazardous operations scheduled in Gulf of Khambhat, India, on April 7, 15, and 22, from 02:30 to 11:30 UTC.
Gulf of Khambhat · India
Cable ops · HYDROPAC 999/2600:00Z
Cable operations by cable ship Ile de Brehat from 022200Z to 301400Z April along trackline in Kenya, one mile berth requested.
Eastern Indian Ocean · Kenya
Surveys · HYDROPAC 1002/2600:00Z
Survey operations by vessel Coastal Triumph in Bay of Bengal from 6 to 30 April, requesting two mile berth, in area near 11 degrees north, 80 degrees east.
Bay of Bengal · India
Cable ops · HYDROPAC 1004/2600:00Z
Cable operations by cableship ANIEK are underway from 02 1500Z April until further notice along a trackline in the Philippine Sea near Japan, with wide berth requested.
North Pacific · Philippine Sea · Japan
Cable ops · HYDROPAC 1021/2600:00Z
Pipeline operations by derrick barge 32 in the Persian Gulf off Qatar from April 5 to 30, wide berth requested.
Persian Gulf · Qatar
Surveys · HYDROPAC 1035/2600:00Z
Survey operations are underway in the Andaman Sea near India from 10 to 19 April; wide berth requested.
Andaman Sea · India
Exercises · HYDROPAC 1041/2600:00Z
Hazardous operations will occur within three miles of 36-28.65S 174-09.63E in the Tasman Sea, New Zealand, daily from 12 to 17 April, 1900Z to 0500Z.
Tasman Sea · New Zealand
Wrecks · HYDROPAC 1046/2600:00Z
Fishing vessel ISWARYAM sank in vicinity 08-58.00N 076-28.00E in Eastern Indian Ocean.
Eastern Indian Ocean · India
Exercises · HYDROPAC 1049/2600:00Z
Hazardous operations occur on April 10, 13, 17, 20, 24, and 27 in eastern Indian Ocean near India.
Eastern Indian Ocean · India
Exercises · HYDROPAC 1055/2600:00Z
Hazardous operations occur daily from 12 through 17 April in an area bounded by coordinates near 17N 145E, 17N 146E, 15N 146E, and 15N 145E.
North Pacific · Philippine Sea · Northern Mariana Islands
Exercises · HYDROPAC 1058/2600:00Z
Hazardous operations in North Pacific near Northern Mariana Islands, April 12-18.
North Pacific · Northern Mariana Islands
Cable ops · HYDROPAC 1066/2600:00Z
Cable operations by CS ASEAN in the Arabian Sea off India from 10 April to 7 May, one mile berth requested.
Arabian Sea · India
Cable ops · HYDROPAC 1072/2600:00Z
Pipeline operations by tug Shakti, barge Kenenna, and vessels Urja and ZD Libra are underway in Gulf of Khambhat, India, April 12 to May 11; wide berth requested.
Arabian Sea · Gulf of Khambhat · India
Cable ops · HYDROPAC 1073/2600:00Z
Pipeline operations are in progress until 21 April 2026 in Gulf of Khambhat, India, by vessels Sea Venture and Sea Patriot, with a wide berth requested.
Arabian Sea · Gulf of Khambhat · India
Cable ops · HYDROPAC 1075/2600:00Z
Pipeline operations by vessel Orion Laxmi in Gulf of Khambhat, India, from 13 April to 12 May 2026, in three areas. Wide berth requested.
Arabian Sea · Gulf of Khambhat · India
Cable ops · HYDROPAC 1079/2600:00Z
Pipeline operations by vessel Fugro Mapper in Gulf of Khambhat, India, from 13 April to 12 May 2026; wide berth requested.
Arabian Sea · Gulf of Khambhat · India
Surveys · HYDROPAC 1091/2600:00Z
Underwater operations are ongoing by the vessel Normand Scorpion in the Eastern Indian Ocean, with a three-mile berth requested.
Eastern Indian Ocean
Missiles · HYDROPAC 1111/2600:00Z
Space debris hazardous operations occur in the Indian Ocean on April 20-26 within an area bounded by coordinates 43-39S to 53-20S and 020-44E to 040-51E.
Indian Ocean
Storms · HYDROPAC 1094/2600:00Z
Apra Harbor, Rota, Tinian, and Saipan ports are closed due to Tropical Storm Sinlaku; previous navigational warning 1092/26 is canceled.
North Pacific · Northern Mariana Islands
Other · HYDROPAC 1099/2600:00Z
Port of Napier, New Zealand, is closed until further notice; cancel HYDROPAC 1080/26.
South Pacific · New Zealand
Missiles · HYDROPAC 1100/2600:00Z
Space debris hazardous operations occur daily from 1543 to 2029 UTC April 18-24 in the South Pacific.
South Pacific
Other · HYDROPAC 1102/2600:00Z
Construction operations are underway in the Arabian Sea off India from 15 to 30 April 26 by LTS 3000, Britoil 71, and Britoil 81 near 19-31.78N 071-18.15E; wide berth requested.
Arabian Sea · India
Cable ops · HYDROPAC 1104/2600:00Z
Pipeline operations by tug Marigold and barge Aqua Float are underway in Gulf of Khambhat, India, from April 15 to May 13, 2026; wide berth requested.
Arabian Sea · Gulf of Khambhat · India
Nav aids · HYDROPAC 1128/2600:00Z
U.S. Coast Guard remote communication facility Guam broadcast services unreliable from 1730Z to 1930Z on 21 and 22 April.
North Pacific · Guam
Missiles · HYDROPAC 1135/2600:00Z
Space debris hazardous operations occur daily from 22 to 28 April between 0343Z and 0818Z in an area bounded by coordinates in the South Pacific.
South Pacific
Wrecks · HYDROPAC 1108/2600:00Z
Plank Shoal light in Spencer Gulf, Australia, is unlit.
Spencer Gulf · Australia
Surveys · HYDROPAC 1112/2600:00Z
Survey operations by vessel Offshore Surveyor off Australia in area bounded by 19-24S 115-42E, 19-54S 115-42E, 19-54S 116-36E, 19-24S 116-36E continue until further notice; one mile berth requested.
Eastern Indian Ocean · Australia
Cable ops · HYDROPAC 1115/2600:00Z
Pipeline operations by vessel WILCHIEF1 in Gulf of Khambhat, Arabian Sea, India, from 16 April to 15 May, wide berth requested.
Arabian Sea · Gulf of Khambhat · India
Cable ops · HYDROPAC 1116/2600:00Z
Pipeline operations from 18 April to 15 May by vessels POSH PANGLIMA, POSH NATUNA and POSH ARCTURUS in Gulf of Khambhat, India; wide berth requested.
Arabian Sea · Gulf of Khambhat · India
Exercises · HYDROPAC 1117/2600:00Z
Hazardous operations are daily 20-24 April in Bay of Bengal, India, from 0430Z to 0630Z and 0900 to 1100.
Bay of Bengal · India
Exercises · HYDROPAC 1119/2600:00Z
Hazardous operations in Bay of Bengal off India from 18 April 03:30 UTC to 07:30 UTC.
Bay of Bengal · India
Exercises · HYDROPAC 1121/2600:00Z
Pakistan conducts hazardous operations in the Arabian Sea from 03:00 to 13:00 UTC on 20 and 21 April near 25-05.88N 062-22.27E.
Arabian Sea · Pakistan
Exercises · HYDROPAC 1123/2600:00Z
Hazardous operations occur daily from April 19 to May 1 within three miles of 36-28.65S 174-09.63E in the Tasman Sea near New Zealand.
Tasman Sea · New Zealand
Surveys · HYDROPAC 1126/2600:00Z
Underwater operations are in progress by vessel Fugro Kwilena in the Eastern Indian Ocean off Australia, requesting one mile berth, near 21-32S 114-11E to 21-43S 114-49E.
Eastern Indian Ocean · Australia
Cable ops · HYDROPAC 1127/2600:00Z
Cable operations by cableship Resolute are underway in Bass Strait and Great Australian Bight along trackline from 38-21.84S 144-23.57E to 39-19.58S 143-21.61E; five-mile berth requested.
Bass Strait
Exercises · HYDROPAC 1130/2600:00Z
Hazardous operations occur daily 20-21 April 0300-1500Z in Arabian Sea off Pakistan within a defined area.
Arabian Sea · Pakistan
Missiles · HYDROPAC 1131/2600:00Z
Hazardous space debris operations will take place daily on April 21 and 22 from 0100 to 0400 UTC in the South Pacific.
South Pacific
Exercises · HYDROPAC 1132/2600:00Z
Gunnery exercises are scheduled from 18 to 19 April in the South Pacific near French Polynesia, with cancellation at 190400Z April.
South Pacific · French Polynesia
Cable ops · HYDROPAC 1137/2600:00Z
Cable operations are in progress by vessel Layla along a trackline from 35-18S 165-39E to 34-51S 162-42E in the Tasman Sea, requesting a two-mile berth.
Tasman Sea
Exercises · HYDROPAC 1138/2600:00Z
Hazardous operations occur near Guam from April 17, 2200 UTC to April 18, 1200 UTC in an area bounded by 13-30N 145-09E, 13-30N 145-30E, 13-10N 145-30E, 13-10N 145-09E.
North Pacific · Guam
Exercises · HYDROPAC 1139/2600:00Z
Hazardous operations occur within three miles of 13-27.00N 145-08.00E and 13-42.00N 144-36.00E near Guam daily 21-23 April from 0100Z to 1300Z.
North Pacific · Philippine Sea · Guam
Nav aids · HYDROPAC 1140/2600:00Z
A radar beacon at North Reef Light, 23-11.10S 151-54.20E, is unreliable.
Coral Sea · Australia
Exercises · HYDROPAC 1141/2600:00Z
Hazardous operations are conducted in the Bay of Bengal, India, from 21 April 18:31 UTC to 26 April 18:29 UTC in a bounded area.
Bay of Bengal · India
Exercises · HYDROPAC 1142/2600:00Z
Hazardous operations occur daily from 0430Z to 1130Z on 22-25 and 27-30 April in the Bay of Bengal near Bangladesh and India.
Bay of Bengal · Bangladesh · India
Missiles · HYDROPAC 1143/2600:00Z
Rocket launching operations in Eastern Indian Ocean off India from 220530Z to 220700Z April in a designated area.
Eastern Indian Ocean · India
Cable ops · HYDROPAC 1144/2600:00Z
Pipeline operations take place from April 20 to May 19 in the Gulf of Khambhat, India; wide berth requested.
Arabian Sea · Gulf of Khambhat · India
Exercises · HYDROPAC 1145/2600:00Z
Hazardous operations are taking place in Bay of Bengal off India from 18 to 19 April in area bounded by 16-15N 084-00E and 16-55N 084-40E.
Bay of Bengal · India
Cable ops · HYDROPAC 1147/2600:00Z
Cable operations by cableship ATHBA in Arabian Sea from April 18 to 27, one mile berth requested.
Arabian Sea
Derelicts · HYDROPAC 1148/2600:00Z
A capsized derelict fishing vessel is adrift at 02-54.84N 090-03.07E as of 170230Z April; cancelled 201222Z April 26.
Eastern Indian Ocean
Nav aids · HYDROPAC 1149/2600:00Z
South Barrow Islet light in Coral Sea, Australia is unlit; previous warning 981/26 is cancelled.
Coral Sea · Australia
Missiles · HYDROPAC 1150/2600:00Z
Hazardous space debris operations daily 21-30 April from 1030 to 1430 UTC within 216 miles of 39-36N 163-56E in North Pacific.
North Pacific
Missiles · HYDROPAC 1061/2600:00Z
Hazardous space debris operations are scheduled daily 14-20 April from 03:43 to 08:29 UTC in the South Pacific, canceled on April 26.
South Pacific
Quakes · USGS-US6000TKT221:58Z
64 km nnw of ende, indonesia
Quakes · USGS-US6000TLWI22:06Z
78 km nnw of ende, indonesia
Quakes · USGS-US6000TKTA22:13Z
40 km ne of labuan bajo, indonesia
Quakes · USGS-US6000TKUB22:16Z
62 km ene of ruteng, indonesia
Quakes · USGS-US6000TKU722:18Z
61 km nnw of ende, indonesia
Quakes · USGS-US6000TKUC22:28Z
62 km n of ende, indonesia
Quakes · USGS-US6000TKUF22:37Z
28 km ne of labuan bajo, indonesia
Towing · NAVAREA III 113/2600:00Z
Towing vessel Manta is towing the Henry Goodrich platform to Aliaga port with a 600-meter trailer, wide berth requested, until August 26.
Mediterranean Sea
Surveys · NAVAREA III 114/2600:00Z
Drilling operations by the Abdulhamid Han are underway in the Black Sea until 202059 UTC August 26, with a 10 nautical mile berth requested.
Black Sea
Surveys · NAVAREA III 93/2600:00Z
Drilling operations by the Kanuni platform are underway in the Black Sea from 16 Jun 26 to 30 Aug 26 within a defined area.
Black Sea
Quakes · USGS-US6000TL1S16:25Z
132 km nne of palu, indonesia
Quakes · USGS-US6000TL3619:32Z
Earthquake magnitude 5.6 (mww) in 23.461N 142.835E, depth 55 km at 151932Z aug 26
Volcano Islands, Japan Region
Quakes · USGS-US6000TL4W03:20Z
56 km nne of port-olry, vanuatu
Surveys · AUSCOAST 255/2605:23Z
Vessel Fugro Kwilena is conducting underwater operations in an area bounded by 19-56.69 S to 20-26.06 S and 114-45.09 E to 115-30.10 E, requesting 1.5 nautical miles clearance.
Surveys · HYDROPAC 2157/2605:34Z
Underwater operations are underway by the vessel Fugro Kwilena in the eastern Indian Ocean off Australia until further notice. A two-mile berth is requested.
Eastern Indian Ocean · Australia
Quakes · USGS-US6000TL6A06:51Z
79 km n of ruteng, indonesia
Nav aids · AUSCOAST 278/2609:23Z
Table Cape Light K3532 at 40-56.80S 145-43.74E is unreliable.
Quakes · USGS-USD0015E7P10:59Z
116 km ese of madang, papua new guinea
Storms · HYDROPAC 2400/2618:30Z
Due to Tropical Storm Saudel, the ports of Saipan and Tinian are closed.
Cable ops · NAVAREA IV 807/2618:30Z
From August 25 to September 8, the cableship Wave Sentinel is conducting cable operations near 29-12.78N 087-58.33W in the Gulf of America, requesting wide berth.
Gulf of America · Alabama
Exercises · HYDROLANT 1618/2618:30Z
Hazardous operations take place daily 0800Z to 1830Z from 24 to 28 August and 31 August to 4 September near two positions off Scotland, cancelling HYDROLANT 1610/26.
North Atlantic · Scotland
Missiles · HYDROPAC 2383/2618:30Z
Rocket launching operations occur within 25 miles of 31-14.14N 144-26.48E on 23 and 29 August from 2200Z to 1300Z daily.
North Pacific
Icebergs · HYDROLANT 1617/2618:30Z
Icebergs reported in South Atlantic, Antarctica, South Shetland Islands at positions including 60-01S 051-24W and 58-53S 050-59W; cancellation at 201247Z August 26.
South Atlantic · Antarctica · South Shetland Islands
Derelicts · HYDROPAC 2382/2618:30Z
A derelict orange lifeboat is adrift at 26-41.81N 152-04.40E as of 190000Z August, with cancellation effective 221240Z August.
North Pacific
Derelicts · HYDROPAC 2381/2618:30Z
A 465-foot motor vessel named SLNC York is adrift at 26-43.90N 151-56.10E as of 19 August.
North Pacific
Exercises · HYDROPAC 2380/2618:30Z
Hazardous operations are scheduled from 04:30 to 11:30 Universal Time on 22 and 23 August in the eastern Indian Ocean off India.
Eastern Indian Ocean · India
Exercises · HYDROPAC 2379/2618:30Z
Hazardous operations are taking place in two areas of the Arabian Sea off India from August 20 to August 24, 2026.
Arabian Sea · India
Exercises · HYDROPAC 2378/2618:30Z
Hazardous operations are taking place in the Arabian Sea off India from August 20 to 24, 2026, in a defined area.
Arabian Sea · India
Exercises · HYDROPAC 2377/2618:30Z
Hazardous operations are underway in the Arabian Sea near India from August 20 to 24 in two specified areas.
Arabian Sea · India
Exercises · HYDROPAC 2376/2618:30Z
In the Arabian Sea, hazardous operations occur from 20 to 24 August within a defined area.
Arabian Sea
Surveys · HYDROLANT 1616/2618:30Z
Underwater operations daily 20 Aug through 03 Sep by vessels Charlie and Comando B in 20-24.27S 040-09.57W, wide berth requested.
South Atlantic · Brazil
Surveys · HYDROLANT 1615/2618:30Z
Underwater operations daily from 20 August to 3 September, 1100 to 2100 UTC, by vessels Comando B and Linden Trader at 20-22.98S 040-08.73W. Wide berth requested.
South Atlantic · Brazil
Surveys · HYDROLANT 1614/2618:30Z
Underwater operations by vessels Hui An and Comando B are ongoing daily from 20 August to 3 September in South Atlantic, Brazil, at 20-23.17S 040-10.02W, wide berth requested.
South Atlantic · Brazil
Nav aids · HYDROLANT 1613/2618:30Z
Ponta da Gameleira Light in western South Atlantic off Brazil is unlit until February 15, 2027.
Western South Atlantic · Brazil
Nav aids · HYDROLANT 1612/2618:30Z
Ponta de Mucuripe Light in Brazil is unreliable until 15 February 2027; this message cancels on 16 February 2027.
South Atlantic · Brazil
Exercises · HYDROPAC 2374/2618:30Z
Hazardous operations occur daily from 0100Z to 1300Z, 25-27 August, within three miles of two positions near Guam.
North Pacific · Philippine Sea · Guam
Icebergs · HYDROARC 177/2618:30Z
Icebergs reported in Laptev Sea at 79-07.70N 109-47.60E and 79-00.60N 110-02.70E on Aug 19.
Laptev Sea
Debris · HYDROLANT 1611/2618:30Z
An object is adrift in the Black Sea near Romania at 44-03.55N 029-56.33E, reported August 18, cancellation August 22.
Black Sea · Romania
Surveys · HYDROPAC 2373/2618:30Z
Survey operations by vessel Fugro Kwilena are underway in the eastern Indian Ocean off Australia; a two-mile berth is requested, cancelling warning 2157/26.
Eastern Indian Ocean · Australia
Icebergs · HYDROLANT 1609/2618:30Z
Icebergs A84, A85, D33A, D33C reported in Scotia Sea, South Atlantic, South Pacific, Antarctica; message cancels August 26, 2026.
Scotia Sea · South Atlantic · South Pacific · Antarctica
Missiles · HYDROLANT 1608/2618:30Z
Space debris hazard operations are in effect in the South Atlantic from August 19 to August 30.
South Atlantic
Missiles · NAVAREA IV 803/2618:30Z
Rocket launching hazardous operations are scheduled off Florida on August 20, 15:19-20:01 UTC, with alternate windows through August 26, in two areas.
North Atlantic · Florida
Missiles · HYDROARC 176/2618:30Z
Rocket launching operations are held daily until August 23 in a Barents Sea area off Russia.
Barents Sea · Russia
Nav aids · NAVAREA IV 802/2618:30Z
NAVTEX station Miami is off air; NAVAREA IV warning 800/26 is canceled.
Western North Atlantic · Florida
Icebergs · NAVAREA IV 801/2618:30Z
Iceberg limits and sea ice limits are set along tracklines in the North Atlantic; report ice sightings to Canadian Coast Guard until August 26.
Debris · HYDROLANT 1606/2618:30Z
Object adrift in Black Sea near Romania at 43-51.90N 030-44.00E as of 14:30 UTC on August 18.
Black Sea · Romania
Missiles · HYDROARC 175/2618:30Z
Rocket launching hazardous operations in Barents Sea off Russia from August 23 to 30, with daily time windows.
Barents Sea · Russia
Surveys · NAVAREA IV 799/2618:30Z
Underwater operations by vessel Atlantis are underway near 37-32.00N 074-14.00W in Delaware from August 30 to September 18, wide berth requested.
North Atlantic · Delaware
Missiles · HYDROPAC 2372/2618:30Z
Rocket launching operations occur in the eastern Indian Ocean near India from 0530Z to 0700Z on 21 August.
Eastern Indian Ocean · India
Exercises · HYDROPAC 2370/2618:30Z
Hazardous operations are taking place in the Andaman Sea, India, from 211030Z to 211130Z August in an area bounded by coordinates.
Andaman Sea · India
Surveys · HYDROLANT 1600/2618:30Z
Underwater operations are conducted daily from 0800 UTC to 1800 UTC until 28 August by vessels Spar Aries and Comando B at 20-48.85S 040-27.23W; wide berth requested.
South Atlantic · Brazil
Missiles · NAVAREA XII 558/2618:30Z
Hazardous rocket launching operations are scheduled off California in the North Pacific from August 22 to 28.
North Pacific · California
Surveys · HYDROLANT 1599/2618:30Z
Underwater operations by vessels Comando B and AM Kirti occur daily 0800Z to 1800Z until 29 August at 20-19.03S 040-08.77W; wide berth requested.
South Atlantic · Brazil
Nav aids · NAVAREA IV 798/2618:30Z
Guaranao Light in Venezuela, at 11-40N 070-12.8W, is unlit.
Caribbean Sea · Venezuela
Nav aids · HYDROLANT 1598/2618:30Z
NAVTEX station Sellia Marina in the Ionian Sea, Italy, is off air at coordinates 38-52.21N 016-43.06E.
Ionian Sea · Italy
Missiles · HYDROARC 174/2618:30Z
Rocket launching hazardous operations in Barents Sea, Russia, are active from August 19 to 30 in specified areas.
Barents Sea · Russia
Exercises · NAVAREA XII 561/2618:30Z
Hazardous operations are in effect off California from August 22 to 24, with alternate times daily, within a defined area.
North Pacific · California
Exercises · NAVAREA XII 560/2618:30Z
Hazardous operations occur in the North Pacific from 19 to 21 August in multiple areas with specific coordinates.
North Pacific
Exercises · HYDROPAC 2362/2618:30Z
Hazardous operations are in progress in the Red Sea off Saudi Arabia in a bounded area until further notice.
Red Sea · Saudi Arabia
Piracy · HYDROPAC 2361/2618:30Z
On 17 August, a vessel was attacked near 08-14.54N 050-11.70E in the eastern Indian Ocean off Somalia; vessels should keep clear and exercise caution.
Eastern Indian Ocean · Somalia
Missiles · HYDROPAC 2356/2618:30Z
Space debris hazard operations in South Pacific from August 22 0912Z to August 28 1502Z, cancelled at 1602Z.
South Pacific
Exercises · HYDROLANT 1595/2618:30Z
Hazardous operations daily from 0700 UTC to 1700 UTC on 18 through 21 August within 17 miles of 57-24.90N 007-59.70W near Scotland.
North Atlantic · Scotland
Other · HYDROPAC 2360/2618:30Z
A fairway buoy in the Arabian Sea off India at 17-34.34N 073-04.58E is missing.
Arabian Sea · India
Exercises · HYDROPAC 2358/2618:30Z
Hazardous operations daily from 0830 to 1030 UTC on 19 and 21 August in Andaman Sea area.
Andaman Sea · Burma · India
Missiles · HYDROLANT 1593/2618:30Z
Space debris hazardous operations occur in the South Atlantic from 19 through 29 August, daily between 2100 and 1800 UTC, within a defined area.
South Atlantic
Surveys · HYDROLANT 1592/2618:30Z
Underwater operations by vessels Spar Aries and Comando B occur daily from 1100Z to 2100Z, 18-28 August, at 20-48.85S 040-27.23W, wide berth requested.
South Atlantic · Brazil
Surveys · NAVAREA IV 791/2618:30Z
Survey operations by vessel Ocean Intervention II continue in the North Atlantic near Trinidad and Tobago until August 25, with a 500-meter berth requested.
North Atlantic
Icebergs · NAVAREA IV 792/2618:30Z
North American Ice Service issues iceberg and sea ice limits along tracklines; sightings should be reported to Canadian Coast Guard; bulletin cancels August 16.
Surveys · HYDROLANT 1578/2618:30Z
Vessels Moonbeam and Comando B are conducting underwater operations near 20-21.82S 040-08.98W, Brazil, from August 15 08:00 UTC to August 29 18:00 UTC; a wide berth is requested.
South Atlantic · Brazil
Missiles · HYDROPAC 2341/2618:30Z
Space debris hazard operations in Eastern Indian Ocean, South Pacific, and Tasman Sea from August 20 to 26.
Eastern Indian Ocean · South Pacific · Tasman Sea
Exercises · HYDROPAC 2342/2618:30Z
Gunnery exercises in the South Pacific near Peru from August 20 to August 23, in an area bounded by coordinates 11-00S to 11-35S and 077-10W to 078-08W.
South Pacific · Peru
Exercises · HYDROPAC 2345/2618:30Z
Hazardous operations are in progress in the Arabian Sea near India until August 20 at 02:30 UTC, with cancellation at 03:30 UTC.
Arabian Sea · India
Exercises · HYDROPAC 2346/2618:30Z
Hazardous operations are in progress in the Arabian Sea off India until August 20, 0230 UTC, within a bounded area.
Arabian Sea · India
Exercises · HYDROPAC 2347/2618:30Z
Hazardous operations are in progress in the Arabian Sea near India until 20 Aug 02:30 UTC; message cancels at 03:30 UTC on the same day.
Arabian Sea · India
Nav aids · HYDROPAC 2353/2618:30Z
Isla Raimapu lighthouse at 45 degrees 48.5 minutes south, 73 degrees 34.7 minutes west is inoperative.
South Pacific · Chile
Icebergs · HYDROLANT 1640/2618:30Z
Icebergs reported at multiple positions in Scotia Sea, South Atlantic, Antarctica; warning cancels 241125Z AUG 26.
Scotia Sea · South Atlantic · Antarctica
Icebergs · HYDROARC 181/2618:30Z
An iceberg is reported in the Laptev Sea, Russia, at 78-00.90N 105-01.70E on August 21 at 1108.
Laptev Sea · Russia
Other · HYDROPAC 2407/2618:30Z
Naval operations in the Arabian Sea off Pakistan on August 23 from 02:00 to 13:00 UTC.
Arabian Sea · Pakistan
Exercises · HYDROPAC 2406/2618:30Z
Hazardous operations are scheduled in the Bay of Bengal, India, from 22 August 06:00 to 12:30 UTC.
Bay of Bengal · India
Exercises · HYDROPAC 2405/2618:30Z
Hazardous operations are conducted daily 0230Z-0800Z from 25 to 27 August in eastern Indian Ocean off India, bounded by 10-20N 075-00E to 10-50N 075-35E.
Eastern Indian Ocean · India
Exercises · HYDROPAC 2404/2618:30Z
Hazardous operations in Arabian Sea off India from 250030Z to 261630Z August in area bounded by coordinates, warning cancels at 261730Z August.
Arabian Sea · India
Surveys · HYDROLANT 1639/2618:30Z
Underwater operations daily from 22 August to 5 September by vessels Comando B and True Chariot at 20-18.87S 040-08.17W in South Atlantic. Wide berth requested.
South Atlantic · Brazil
Wrecks · HYDROARC 180/2618:30Z
Depths of 5.5 meters at 73-02.72N 080-34.31E and 5.7 meters at 73-02.48N 080-33.76E are reported in the Kara Sea, Russia.
Kara Sea · Russia
Icebergs · HYDROLANT 1637/2618:30Z
Icebergs reported in Scotia Sea, South Atlantic, South Pacific, and Antarctica at four positions; this message cancels August 26.
Scotia Sea · South Atlantic · South Pacific · Antarctica
Surveys · HYDROLANT 1636/2618:30Z
Survey operations are in progress in the South Atlantic by the vessel Sea 1 Dorado until 24 August in an area bounded by coordinates; wide berth requested.
South Atlantic
Exercises · HYDROLANT 1635/2618:30Z
Hazardous operations are conducted within two miles of 21-52.50S 040-50.30W from 222300Z to 230800Z August.
South Atlantic · Brazil
Nav aids · HYDROLANT 1634/2618:30Z
A data buoy is temporarily established in the South Atlantic off Brazil at 21-34.20S 040-43.62W until 21 August 2027.
South Atlantic · Brazil
Missiles · HYDROPAC 2402/2618:30Z
Hazardous operations with space debris in the North Pacific, Philippine Sea, and South China Sea near the Philippines from Aug 23 2300Z to Aug 24 0500Z.
North Pacific · Philippine Sea · South China Sea · Philippines
Icebergs · NAVAREA IV 809/2618:30Z
As of August 21, North American Ice Service reports iceberg and sea ice limits along tracklines, requests ice reports, cancels August 22.
Exercises · NAVAREA XII 569/2618:30Z
Hazardous operations will occur off California from August 25 to August 28, with alternate times on August 26 and 27.
North Pacific · California
Cable ops · NAVAREA XII 568/2618:30Z
Cable ship IT Intrepid conducts cable operations in Chukchi Sea, Alaska, from August 22 to September 2, requesting one mile berth.
Chukchi Sea · Alaska
Containers · HYDROPAC 2401/2618:30Z
A partially submerged container is adrift at 18-55.16N 071-55.61E in the Arabian Sea near India, as of 20 Aug 04:00 UTC.
Arabian Sea · India
Surveys · HYDROLANT 1582/2618:30Z
Underwater operations are conducted daily from 0800 to 1800, 16-30 August, by ships White Defender and Comando B near 20-26.83S 040-08.73W; wide berth requested.
South Atlantic · Brazil
Surveys · HYDROLANT 1583/2618:30Z
Survey operations by M/V Amazon Conqueror towing eight one-mile-long cables in North Sea off Norway until further notice. Two-mile berth requested.
North Sea · Norway
Exercises · HYDROPAC 2352/2618:30Z
Hazardous operations are in progress in two areas in the Arabian Sea off India until 20 August, 02:30 UTC.
Arabian Sea · India
Nav aids · HYDROLANT 1589/2618:30Z
East Goodwin Light Vessel at position 51-13.30N, 001-36.40E in Dover Strait, England, is permanently discontinued.
Dover Strait · England
Nav aids · HYDROLANT 1590/2618:30Z
Digital selective calling and radio telephony services are off air at Cullercoats and Gregness, England, and HYDROLANT 1488/26 is cancelled.
North Sea · England
Surveys · AUSCOAST 257/2621:38Z
Vessel Investigator is conducting a scientific survey towing equipment in an area bounded by coordinates from 21-52S 150-47E to 24-22S 152-51E; 1 nautical mile clearance requested.
Spills · NOAAORR-1119500:00Z
Joseph sinking; seattle, washington
Fishing Vessel New St
Missiles · NAVAREA XI 369/2600:21Z
Missile firing in North Pacific near Hokkaido, daily from August 16 to 22, from 1400Z to 1000Z, in a defined area.
North Pacific, Hokkaido
Quakes · USGS-USD0015EAY00:46Z
73 km nnw of ende, indonesia
Missiles · NAVAREA XI 374/2612:21Z
A missile firing warning for the North Pacific near Hokkaido is canceled, including warning 0369/26.
North Pacific, Hokkaido
Quakes · USGS-USD0015EDQ12:38Z
72 km e of petropavlovsk-kamchatsky, russia
Icebergs · NAVAREA IV 804/2614:45Z
North American Ice Service bulletin lists iceberg and sea ice limits along tracklines in the North Atlantic, valid until August 21, 2026.
Missiles · HYDROPAC 2388/2614:45Z
Hazardous space debris operations are occurring in the Eastern Indian Ocean, South Pacific, and Tasman Sea from Aug 25 to Aug 31.
Eastern Indian Ocean · South Pacific · Tasman Sea
Missiles · NAVAREA IV 806/2614:45Z
Hazardous rocket launching operations are scheduled from August 25 to 31 in areas off Florida, with alternate windows.
North Atlantic · Florida
Surveys · HYDROLANT 1619/2614:45Z
Underwater operations are underway until 280259Z August by vessel Siem Pilot at 24-35.02S 042-15.37W; wide berth requested.
South Atlantic
Surveys · HYDROLANT 1620/2614:45Z
Survey operations in the South Atlantic by vessel Sea 1 Dorado until 24 August, wide berth requested.
South Atlantic
Surveys · HYDROLANT 1621/2614:45Z
Vessel NOMAR is conducting underwater operations daily until 25 August at 24-07.27S 046-09.30W off Brazil in the South Atlantic. Wide berth requested.
South Atlantic · Brazil
Missiles · HYDROARC 178/2614:45Z
Rocket launching hazardous operations occur in Barents Sea near Russia on July 21-30, with daily time windows, in two areas.
Barents Sea · Russia
Icebergs · HYDROLANT 1623/2614:45Z
Icebergs reported in Scotia Sea, South Atlantic, South Pacific, Antarctica at positions A84, A85, D33A, D33C. Cancel message 210411Z Aug 26.
Scotia Sea · South Atlantic · South Pacific · Antarctica
Missiles · NAVAREA XII 563/2614:45Z
Hazardous rocket launching operations are scheduled off California on August 25-31 with multiple time windows and three designated areas.
North Pacific · California
Debris · NAVAREA XII 564/2614:45Z
A fish aggregating device is adrift near 04-21.66N 081-47.40W as of 191700Z August.
North Pacific
Exercises · HYDROPAC 2390/2614:45Z
Hazardous operations occur daily 0100Z to 1300Z from 24 to 27 August within three miles of two positions near Guam.
North Pacific · Philippine Sea · Guam
Exercises · HYDROPAC 2391/2614:45Z
Gunnery exercises in Coral Sea near New Caledonia from August 24 20:00 UTC to August 28 08:00 UTC.
Coral Sea · New Caledonia
Surveys · HYDROLANT 1625/2614:45Z
Underwater operations daily from 21 August to 4 September by two vessels at 20-23.95S 040-10.83W in the South Atlantic, wide berth requested.
South Atlantic · Brazil
Exercises · HYDROLANT 1626/2614:45Z
Hazardous operations are underway from August 25 0900Z to August 27 2100Z within seven miles of 24 degrees 26.04 minutes South, 045 degrees 39.91 minutes West.
South Atlantic · Brazil
Missiles · HYDROPAC 2392/2614:45Z
Space debris hazard operations occur daily from Aug 25 to 31, 1002Z to 1607Z, in the South Pacific.
South Pacific
Nav aids · HYDROLANT 1627/2614:45Z
Jericoacoara light at 02-47.28S 040-29.98W is unlit.
South Atlantic · Brazil
Exercises · HYDROPAC 2393/2614:45Z
Exercise warning in Lakshadweep, Eastern Indian Ocean, is cancelled as of 210830Z August 26.
Eastern Indian Ocean · Lakshadweep
Piracy · HYDROPAC 2394/2614:45Z
A vessel is hijacked by six pirates in the Arabian Sea off Yemen at 14-32N 051-28E; vessels keep clear and exercise caution.
Arabian Sea · Yemen
Missiles · HYDROPAC 2395/2614:45Z
Missile operations occur daily from 1400Z to 0800Z, 25 through 30 August, in the Sea of Japan.
Sea of Japan · Russia
Exercises · NAVAREA XII 566/2614:45Z
Hazardous operations are scheduled from 25 August 14:00 to 20:00 UTC, with alternate 26 August 14:00 to 20:00 UTC, within 56 miles of 35-35N 121-56W.
North Pacific · California
Exercises · NAVAREA XII 567/2614:45Z
Hazardous operations are scheduled off California on August 25 from 1300 to 2100 UTC, with alternate on August 26, in a bounded area.
North Pacific · California
Icebergs · HYDROLANT 1629/2614:45Z
Icebergs are reported at multiple positions in the Scotia Sea, South Atlantic, Antarctica; this message cancels on 21 August.
Scotia Sea · South Atlantic · Antarctica
Debris · HYDROPAC 2398/2614:45Z
A warning about wooden debris adrift at 25-13.12N 056-29.18E in the Gulf of Oman off the United Arab Emirates is cancelled on 23 August.
Gulf of Oman · U.A.E
Missiles · NAVAREA X 91/2623:53Z
Space debris danger area from Cape Darnley to Tasmania, 80 nautical miles either side of centreline, daily between 1455 and 2205 UTC, 10 to 16 August 2026.
Spills · NOAAORR-1119600:00Z
R685+56 moss landing, ca, USA
Disabled Vessel Near Elk Horn Slough; Moss Landing, California
Spills · NOAAORR-1119700:00Z
1809 sunset dr, pacific grove, ca 93950, USA
Tar Balls At Monterey Bay; Pacific Grove, California
Other · AUSCOAST 227/2600:08Z
12 six-meter yellow buoys with white flashing lights every 3 seconds are deployed within 1.5 nautical miles of 38-46.00S 142-48.80E; 2.5 nautical miles clearance requested.
Other · AUSCOAST 282/2604:53Z
Booby Island weather station at position 10-36.15S 141-54.61E is inoperative.
Other · AUSCOAST 281/2604:53Z
Booby Island tide gauge at position 10-36.15S 141-54.61E is inoperative.
Quakes · USGS-US6000TLKL05:02Z
95 km sw of puerto madero, mexico
Quakes · USGS-US6000TLKT06:02Z
154 km sse of teluk dalam, indonesia
Exercises · HYDROPAC 2305/2615:40Z
Gunnery exercises take place daily 09-14 August near the Kuril Islands in the Sea of Okhotsk; canceled 15 August 1300Z.
North Pacific · Sea of Okhotsk · Kuril Islands
Missiles · HYDROPAC 2304/2615:40Z
Missile operations are active in the Sea of Okhotsk, Russia, daily from 2000Z to 1200Z from 10 to 15 August.
Sea of Okhotsk · Russia
Missiles · HYDROPAC 2332/2615:40Z
Hazardous space debris operations occur daily 19-25 August in the South Pacific, with cancellation at 250929Z August 26.
South Pacific
Missiles · HYDROPAC 2300/2615:40Z
Space debris hazard operations occur daily from August 15 to September 4 in two South Pacific areas.
South Pacific
Missiles · HYDROPAC 2299/2615:40Z
Rocket launching hazardous operations occur daily 0430-1645Z from 15 August to 4 September in the South Pacific near New Zealand.
South Pacific · New Zealand
Surveys · NAVAREA IV 743/2615:40Z
Underwater operations by vessels Atlantis and Alvin near Cayman Islands from August 2 to August 18, within 100 miles of 18°23'N 081°47'W, wide berth requested.
Caribbean Sea · Cayman Islands
Nav aids · HYDROPAC 2296/2615:40Z
The US Coast Guard remote communication facility near Guam at 13-29N 144-50E has unreliable high-frequency radio capabilities.
North Pacific · Guam
Surveys · HYDROLANT 1540/2615:40Z
The vessel Ramform Titan is conducting survey operations towing twelve 9000-meter-long cables off Brazil from 10 to 17 August.
South Atlantic · Brazil
Missiles · NAVAREA XII 551/2615:40Z
Rocket launching hazardous operations in North Pacific off California from August 19 to 25, with daily alternate windows, in two areas near 34-29N 120-29W and 29-13N 121-31W.
North Pacific · California
Missiles · HYDROPAC 2286/2615:40Z
Space debris hazard operations occur in the South Pacific from 15 to 22 August, in an area bounded by 27-59S 122-44W and 59-58S 099-05W.
South Pacific
Surveys · HYDROLANT 1512/2615:40Z
Underwater operations are underway in South Atlantic off Brazil at 22-22.48S 040-25.05W until 170259Z August, wide berth requested; message cancels 170359Z August.
South Atlantic · Brazil
Cable ops · NAVAREA IV 756/2615:40Z
Cableship Intrepid is conducting underwater operations at 16-32.79N 075-39.00W near Jamaica from August 5 to 19, requesting a two-mile berth.
Caribbean Sea · Jamaica
Missiles · NAVAREA IV 755/2615:40Z
Rocket launching hazardous operations are scheduled near Florida in the North Atlantic from August 10 to 16, with alternate dates.
North Atlantic · Florida
Nav aids · HYDROLANT 1505/2615:40Z
Araripe Light at 16-08.09S 038-57.86W is unlit until 31 Jan 2027.
South Atlantic · Brazil
Missiles · NAVAREA XII 539/2615:40Z
Hazardous rocket launching operations take place off California in multiple areas from August 15 to 22, with alternate dates.
North Pacific · California
Other · HYDROPAC 2231/2615:40Z
The vessel Minoan Pioneer is on fire and anchored in the Strait of Hormuz, Oman, at 26-27.60N 056-32.50E; mariners should navigate with caution.
Strait of Hormuz · Oman
Other · HYDROLANT 1530/2615:40Z
Naval operations occur daily from 0500Z to 1200Z on August 13-15 in an area near 44-12N 028-40E, Black Sea, Romania.
Black Sea · Romania
Surveys · HYDROLANT 1493/2615:40Z
Survey operations are in progress in the Black Sea off Romania by motor vessel Ocean Aero until August 16; a wide berth is requested in the survey area.
Black Sea · Romania
Nav aids · NAVAREA IV 737/2615:40Z
U.S. Coast Guard remote communication facility at New Orleans, Louisiana is off air for high-frequency digital selective calling.
Gulf of Mexico · Louisiana
Exercises · HYDROPAC 2325/2615:40Z
Hazardous operations occur daily August 18-20, 0100Z to 1300Z, within three miles of two positions near Guam in the Philippine Sea.
North Pacific · Philippine Sea · Guam
Exercises · NAVAREA XII 552/2615:40Z
Hazardous operations are underway August 19 to 20 within two miles of 32-35.87N 117-10.87W.
North Pacific · California
Nav aids · HYDROLANT 1552/2615:40Z
Mew Island Light at 54-41.90N 005-30.80W in North Channel, Ireland, is unreliable.
North Channel · Ireland
Exercises · HYDROPAC 2313/2615:40Z
Hazardous operations take place near 36-28.65S 174-09.63E in Tasman Sea, New Zealand, from 170500Z to 171000Z August.
Tasman Sea · New Zealand
Wrecks · HYDROLANT 289/2615:40Z
A dangerous wreck is located in the North Atlantic off Brazil at 00-24.48N 047-50.68W.
North Atlantic · Brazil
Exercises · HYDROPAC 2316/2615:40Z
Hazardous operations are being conducted daily from 0400Z to 1600Z in multiple areas off Saudi Arabia in the Red Sea on August 17-20.
Red Sea · Saudi Arabia
Missiles · HYDROPAC 2308/2615:40Z
Space debris hazard operations are occurring in Sulu Sea, Philippines, on August 16 from 02:00 to 08:00 UTC; warning canceled August 26 at 09:00 UTC.
Sulu Sea · Philippines
Exercises · HYDROPAC 2306/2615:40Z
Gunnery exercises will take place in the Sea of Okhotsk, Russia, from August 14 20:00 UTC to August 15 12:00 UTC.
Sea of Okhotsk · Russia
Icebergs · HYDROLANT 1574/2615:40Z
Icebergs reported in Scotia Sea and South Shetland Islands at several positions; warning cancels 151314Z August 26.
Scotia Sea · South Atlantic · South Shetland Islands
Exercises · HYDROPAC 2336/2615:40Z
Hazardous operations daily 19 and 20 August from 0630Z to 1230Z in Indian Ocean area off India bounded by 13-56.20N 074-13.60E to 14-07.20N 074-25.70E.
Indian Ocean · India
Exercises · HYDROPAC 2335/2615:40Z
Hazardous operations in Bay of Bengal, India, daily 15, 17 and 18 Aug from 0330-0630Z and 0830-1030Z in area 17-31.12N 083-45.15E to 17-51.20N 084-06.12E.
Bay of Bengal · India
Exercises · HYDROPAC 2334/2615:40Z
Hazardous operations are scheduled in the Andaman Sea near India on August 18 from 0430 to 0630 and from 0830 to 1030 Coordinated Universal Time.
Andaman Sea · India
Nav aids · HYDROPAC 2333/2615:40Z
Perpendicular Point Light in Tasman Sea, Australia at 35-05.65S 150-48.25E, temporarily changed to flashing (3) white every 20 seconds.
Tasman Sea · Australia
Icebergs · HYDROLANT 1570/2615:40Z
Icebergs reported in the Scotia Sea and Antarctica at several coordinates; message cancels August 15, 2026, 06:32 UTC.
Scotia Sea · South Atlantic · South Pacific · Antarctica
Debris · NAVAREA IV 788/2615:40Z
A five-meter white and grey cylindrical object is adrift at 38-11.50N 053-32.50W; warning cancels August 16, 22:43 UTC.
North Atlantic
Icebergs · NAVAREA IV 787/2615:40Z
North American Ice Service bulletin reports iceberg and sea ice limits along specified tracklines, requests ice reports to Canadian Coast Guard, cancels August 15.
Cable ops · HYDROLANT 1568/2615:40Z
Cable operations by ship ILE D OUESSANT occur from 15 to 20 August in an area near Canary Islands; wide berth requested.
North Atlantic · Canary Islands
Exercises · NAVAREA XII 548/2615:40Z
Hazardous operations occur off California in the North Pacific from August 18-19 and 20-21, with the notice valid until August 26.
North Pacific · California
Icebergs · HYDROARC 169/2615:40Z
Six icebergs reported in Laptev Sea, Russia, at 13 Aug 09:00 UTC.
Arctic · Laptev Sea · Russia
Exercises · HYDROLANT 1564/2615:40Z
Hazardous operations occur daily from August 18 to 20, 0800Z to 2100Z, within ten miles of 25°06'S 041°13'W.
South Atlantic
Derelicts · HYDROLANT 1558/2615:40Z
A vessel is adrift at 29-03.30N 011-00.68W in the North Atlantic near Morocco as of August 12.
North Atlantic · Morocco
Missiles · HYDROPAC 2320/2615:40Z
The warning for missile operations near Kuril Islands, North Pacific, covers 1400Z to 1000Z daily 16-22 August and is cancelled at 231100Z August.
North Pacific · Kuril Islands
Debris · HYDROLANT 1556/2615:40Z
An object is adrift in the Black Sea near Romania at 44-00.65N 030-34.50E as of 12 August 06:30 UTC.
Black Sea · Romania
Exercises · HYDROPAC 2314/2615:40Z
Hazardous operations are underway in the Arabian Sea off India, August 12 to August 16, in two areas.
Arabian Sea · India
Nav aids · NAVAREA IV 750/2615:40Z
NAVTEX station Miami at 25-30N 080-23W is inoperative; NAVAREA IV 748/26 is cancelled.
Western North Atlantic · Florida
Surveys · HYDROPAC 2171/2615:40Z
Survey operations are underway by vessel Investigator in the Coral Sea near Australia until further notice, with a one-mile berth requested.
Coral Sea · Australia
Surveys · HYDROLANT 1445/2615:40Z
Underwater operations by vessel UMI Polaris in the South Atlantic off Brazil from 28 July to 19 August, wide berth requested.
South Atlantic · Brazil
Surveys · HYDROPAC 2124/2615:40Z
Submersible survey operations are in areas near 22-40N 154-30E and 22-30N 153-45E in the North Pacific from July 25 to August 15; wide berth requested.
North Pacific
Nav aids · HYDROLANT 1421/2615:40Z
Sidi Ifini lighthouse in Morocco, at 29-22.50N 010-10.70W, is unlit.
Morocco
Cable ops · HYDROPAC 2100/2615:40Z
Cable operations are underway until further notice by cableship Subaru near a trackline joining 36-44.60N 140-45.20E to 35-04.90N 156-51.80E off Japan; wide berth requested.
North Pacific · Japan
Other · HYDROPAC 2089/2615:40Z
A fish aggregating device is temporarily anchored at 26-36.55S 153-30.16E in the Coral Sea, Australia, as of 21 July 05:06 UTC.
Coral Sea · Australia
Nav aids · HYDROPAC 2043/2615:40Z
Cabo Blanco Light at 04-15.10S 081-14.30W is unlit.
South Pacific · Peru
Surveys · HYDROPAC 2027/2615:40Z
Survey operations by the vessel Trimurti are ongoing in the Arabian Sea off India from 15 July to 14 August; wide berth requested.
Arabian Sea · India
Cable ops · NAVAREA IV 677/2615:40Z
Cable operations by cable ship Reliance are in progress until 22 August along a trackline from 21-58.68N 044-28.46W to 30-50.64N 061-00.22W, requesting a two-mile berth.
Cable ops · NAVAREA IV 663/2615:40Z
Cable ship Ile de Molene is doing cable operations off Trinidad and Tobago from July 10 to August 15; one-mile berth requested.
Atlantic Ocean · Caribbean Sea
Nav aids · HYDROPAC 1863/2615:40Z
Twelve six-meter yellow buoys with flashing white light every 3 seconds are established in Great Australian Bight, Australia, near 38-46S 142-48.8E; three mile berth requested.
Great Australian Bight · Australia
Missiles · HYDROPAC 2235/2615:40Z
Space debris hazard operations are scheduled in the Eastern Indian Ocean and South Pacific on August 10-16, 2026, during specific time windows.
Eastern Indian Ocean · South Pacific
Nav aids · HYDROLANT 746/2615:40Z
A data buoy is temporarily established in the South Atlantic off Brazil at 21-34.20S 040-43.62W until 13 April 2027.
South Atlantic · Brazil
Derelicts · HYDROPAC 2202/2615:40Z
The ship Gazlog Shanghai is disabled and adrift in the Strait of Hormuz near Oman at position 26-05.11N 056-35.40E as of 312330Z July.
Strait of Hormuz · Oman
Surveys · HYDROLANT 1484/2615:40Z
Underwater operations by M/V Comando B and M/V Royal Topaz at 20-21.62S 040-08.00W off Brazil, August 2-16, wide berth requested.
South Atlantic · Brazil
Exercises · HYDROPAC 2338/2615:40Z
Hazardous operations in Bay of Bengal, India, daily 0330Z to 1130Z from 19 to 21 August in a defined area.
Bay of Bengal · India
Exercises · HYDROPAC 2337/2615:40Z
Hazardous operations are occurring in the Gulf of Khambhat, India, from 190230Z to 191130Z in a bounded area.
Gulf of Khambhat · India
Missiles · NAVAREA XI 375/2616:21Z
A potential ballistic missile launched from North Korea may fall in the Japan Sea, East China Sea, and North Pacific; vessels should keep clear and report to Japan Coast Guard.
Japan Sea, East China Sea and North Pacific, Japan
Missiles · NAVAREA XI 376/2616:21Z
A missile from North Korea may have landed in Japan Sea, East China Sea, North Pacific; vessels keep clear and report to Japan Coast Guard.
Japan Sea, East China Sea and North Pacific, Japan
Surveys · NAVAREA 19 103/2618:30Z
Drilling rigs listed in Norwegian Sea north of 65N east of 5W as of August 26, with safety zones; previous warning cancelled.
Riglist
Other · NAVAREA 19 104/2618:30Z
NAVAREA XIX warning 99/26 is cancelled.
Missiles · NAVAREA X 94/2601:53Z
Space debris danger area is in effect from Cape Darnely to Tasmania, daily 1525-2235 UTC, 20-26 August 2026.
Derelicts · NAVAREA XI 373/2612:06Z
Derelict bulk carrier, about 140 meters long, adrift at 26-43.9N 151-56.1E in North Pacific near Minamitori Shima, as of August 19; message cancels August 22.
North Pacific, Minamitori Shima
Quakes · USGS-US6000TLXQ16:17Z
45 km nne of ruteng, indonesia
Quakes · USGS-US6000TM0U22:45Z
29 km nne of ruteng, indonesia
Surveys · NAVAREA IV 762/2623:50Z
Survey operations are in progress until 31 December by vessel Island Frontier in the Gulf of America off Louisiana; wide berth requested.
Gulf of America · Louisiana
Quakes · USGS-US6000TM1J02:46Z
32 km nne of ruteng, indonesia
Missiles · NAVAREA XI 379/2612:06Z
Space debris operations are hazardous in the South China Sea and western North Pacific from 23 Aug 23:00 to 24 Aug 05:00 UTC, then cancelled at 06:00 UTC.
South China Sea, Northern Part and North Pacific, Western Part
Derelicts · NAVAREA XI 381/2612:06Z
Derelict bulk carrier removed near Minamitori Shima, North Pacific; warning 0373/26 and this message cancelled.
North Pacific, Minamitori Shima
Cable ops · NAVAREA IV 729/2614:30Z
Cable operations by cableship Pierre de Fermat are in progress until 25 August between Aruba and Florida; wide berth requested.
Caribbean Sea · North Atlantic
Other · NAVAREA XI 382/2616:21Z
NAVAREA XI warning messages 0375/26 and 0376/26 are canceled.
Quakes · USGS-US6000TM8H18:12Z
68 km nnw of ende, indonesia
Cable ops · NAVAREA XII 523/2621:51Z
Cable operations are underway by M/V Grace in the North Pacific along a trackline; a two-mile berth is requested.
North Pacific

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