Navigational warnings, week 2026-W36
2026-08-31 to 2026-09-06 UTC · current week
- issued
- 104
- cancelled
- 122
- in force at end
- 464
- of these still in force
- 16
Issued · by type
| Exercises | 28 |
| Missiles | 15 |
| Icebergs | 14 |
| Surveys | 10 |
| Other | 7 |
| Storms | 7 |
| Quakes | 6 |
| Cable ops | 5 |
| Nav aids | 4 |
| Debris | 3 |
| Wrecks | 3 |
| Derelicts | 2 |
Issued · by sea
| North Pacific Ocean | 19 |
| South Atlantic Ocean | 11 |
| South Pacific Ocean | 7 |
| Indian Ocean | 6 |
| Bay of Bengal | 5 |
| Philippine Sea | 5 |
| North Atlantic Ocean | 5 |
| Black Sea | 4 |
HYDROPAC 38 · HYDROLANT 20 · HYDROARC 12 · NAVAREA IV 8 · USGS earthquakes 6 · NHC storms 4 · NAVAREA XII 4 · AUSCOAST 4 · JTWC storms 3 · NAVAREA II 1 · NAVAREA III 1 · NAVAREA XIX 1 · NAVAREA VII 1 · NAVAREA XI 1
Issued · 104
- Surveys · NAVAREA 7 250/2600:00ZNAVAREA VII 250 of 2026 (31 aug 26) 1. south atlantic ocean - ne sector 2. angola, namibia 3. charts san 1,…
- Cable ops · NAVAREA III 129/26in force00:00ZRepair operation on submarine cable system by vessel Sophie Germain in Eastern Mediterranean Sea from 31 August 2026 until further notice, about 10 days.Eastern Mediterranean Sea
- Cable ops · HYDROPAC 2483/2600:33ZCable operations in progress until 15 dec by M/V topaz and M/V bureya within two miles of trackline joining…Sea of Japan · Russia
- Exercises · HYDROPAC 2484/2601:39ZHazardous operations in progress until 030500Z sep in areas bound by: a. 51-03.30N 156-22.20E, 50-43.10N…North Pacific · Sea of Okhotsk · Kamchatka
- Derelicts · NAVAREA IV 842/2603:20ZDerelict M/V unlit and anchored in 15-54.77N 078-41.81WCaribbean Sea
- Exercises · HYDROPAC 2486/2603:52ZHazardous operations 050330Z to 050700Z and 060100Z to 060800Z sep in area bound by 13-10.00N 144-30.00E,…North Pacific · Guam
- Icebergs · HYDROLANT 1716/2604:17ZIcebergs reported in: a. A84, 71-34.80S 101-43.80WScotia Sea · South Atlantic · South Pacific · Antarctica
- Wrecks · HYDROARC 195/2607:13ZDepths reported: a. 14.3 meters in 70-14.06N 082-44.52EKara Sea · Russia
- Quakes · USGS-US7000TD2Z08:03Z44 km nne of ruteng, indonesia
- Missiles · HYDROPAC 2489/2608:35ZMissile operations 1400Z to 0900Z daily 04 thru 11 sep in area bound by 56-34.00N 154-14.00E, 56-34.00N…North Pacific · Sea of Okhotsk · Kamchatka
- Debris · HYDROLANT 1717/2608:53ZObject adrift in vicinity 44-31.60N 029-32.10E at 310515Z augBlack Sea · Romania
- Debris · HYDROLANT 1718/2608:59ZObject adrift in vicinity 44-04.36N 029-35.31E at 310530Z augBlack Sea · Romania
- Exercises · HYDROPAC 2490/2609:16ZGunnery exercises in progress until 031200Z sep in areas bound by: a. 50-05.00N 155-07.00E, 49-55.00N…North Pacific · Sea of Okhotsk · Kuril Islands
- Missiles · HYDROPAC 2491/2609:31ZHazardous operations, space debris 012119Z to 012145Z sep in area bound by 28-16.00S 170-42.00W, 29-09.00S…South Pacific
- Missiles · NAVAREA XII 595/2609:41ZHazardous operations, space debris 2133Z to 2355Z daily 04 thru 10 sep in area bound by 27-28.71N…North Pacific · Johnston Atoll
- Exercises · HYDROPAC 2492/2611:26ZHazardous operations 0001Z to 1600Z daily 01 thru 30 sep except fridays and saturdays in areas bound by: a.…Bay of Bengal · Bangladesh
- Cable ops · HYDROLANT 1720/2612:07ZCable operations until further notice by cableship sophie germain in area bound by 40-40.27N 027-15.72E,…Sea of Marmara · Turkey
- Other · HYDROPAC 2493/2612:37ZMining exercises in progress until 06 sep in 05-37.33S 039-06.20EWestern Indian Ocean · Tanzania
- Icebergs · HYDROARC 196/2612:42ZIceberg reported in 77-48.20N 114-58.20ELaptev Sea
- Other · AUSCOAST 286/2614:10ZA current meter at position 10 degrees 30.29 minutes south, 142 degrees 14.63 minutes east is inoperative.
- Icebergs · HYDROLANT 1722/2614:56ZIcebergs reported in: a. A76C, 53-22.00S 028-16.00WSouth Atlantic · South Shetland Islands
- Other · HYDROLANT 1724/2617:07ZCancel HYDROLANT 1721/26, 1723/26 and this msgSouth Atlantic
- Exercises · NAVAREA XII 596/2617:28ZHazardous operations 011800Z to 020100Z sep, alternate 031800Z to 040100Z sep in area bound by 32-46.00N…North Pacific · California
- Missiles · HYDROARC 197/2618:32ZMissile operations are scheduled in Barents and White Seas near Russia on 04 and 05 September, 0100Z to 1400Z daily.Barents Sea · White Sea · Russia
- Icebergs · NAVAREA IV 843/2619:12ZIceberg and sea ice limits are in effect along tracklines in the North Atlantic as of September 1, with reports requested to authorities.
- Derelicts · NAVAREA XII 597/2600:29ZA 12-meter grey-hulled derelict vessel is partially submerged and adrift at 09-44.50N 137-14.20W as of August 29, 23:20 UTC.North Pacific
- Missiles · HYDROARC 199/2603:31ZRocket launching hazardous operations daily from 04 to 10 September, 1600Z to 2135Z, in areas of Greenland Sea and Norwegian Sea near Norway.Greenland Sea · Norwegian Sea · Norway
- Icebergs · HYDROLANT 1727/2604:00ZIcebergs reported in Scotia Sea, South Atlantic, South Pacific, Antarctica at positions A84, A85, D33A, D33C.Scotia Sea · South Atlantic · South Pacific · Antarctica
- Missiles · NAVAREA 19 108/2606:30ZNorwegian sea grennland sea 1. rocket launch operation will be conducted
- Nav aids · NAVAREA XII 598/2607:57ZHF/MF unreliable and DSC inoperative at USCG remote communication facilities (Pt Reyes, Honolulu, Kodiak, and others) in North Pacific on Sep 4, 15:00-17:30 UTC; cancel 18:30 UTC.North Pacific
- Nav aids · HYDROPAC 2495/2607:57ZThe U.S. Coast Guard remote communication facility at Guam has unreliable high frequency and medium frequency and inoperative digital selective calling from 041500Z to 041730Z September.North Pacific · Guam
- Nav aids · NAVAREA IV 844/2607:57ZHF/MF radio unreliable and DSC inoperative from 041500Z to 041730Z September at USCG remote facilities: Boston, Chesapeake, Charleston, Miami, New Orleans, San Juan; cancel 041830Z.North Atlantic
- Quakes · USGS-US7000TDAVin force08:22Z82 km se of maba, indonesia
- Exercises · HYDROPAC 2496/2611:30ZHazardous operations in Bay of Bengal, India, from 020630Z to 021030Z Sep in an area bounded by 17-43N 083-35E, 17-48N 084-06E, 17-07N 083-55E, 17-27N 083-31E.Bay of Bengal · India
- Exercises · HYDROPAC 2497/2611:43ZHazardous operations are underway in the Eastern Indian Ocean near Lakshadweep on September 3, 02:00-07:30 and 08:30-11:30 UTC.Eastern Indian Ocean · Lakshadweep
- Missiles · HYDROPAC 2498/2611:50ZRocket launching hazardous operations in the Andaman Sea near India, in specified areas from September 3 2100 UTC to September 4 0100 UTC.Andaman Sea · India
- Exercises · HYDROPAC 2500/2612:09ZHazardous operations in Bay of Bengal near India between 02:30 and 11:30 UTC on September 2.Bay of Bengal · India
- Icebergs · HYDROARC 200/2613:10ZIcebergs reported in Kara Sea, Russia, on 1 September at 1145Z at 77-44.40N 097-30.50E, 77-46.30N 097-56.00E, and 77-50.30N 098-22.30E; message cancels on 2 September 2026 at 1311Z.Kara Sea · Russia
- Other · HYDROLANT 1731/2613:22ZMaritime exercises will occur in the Black Sea off Romania on September 7, 8, and 9; a wide berth is requested.Black Sea · Romania
- Exercises · HYDROPAC 2501/2613:50ZHazardous operations daily 0230Z to 0700Z from 14 to 16 Sep within two miles of 21-17.00S 055-20.81E near Reunion. Cancel 160800Z Sep.Eastern Indian Ocean · Reunion
- Exercises · HYDROPAC 2502/2613:57ZHazardous operations in the Red Sea off Saudi Arabia from 0300Z to 1500Z daily 06 to 10 September in a defined area.Red Sea · Saudi Arabia
- Other · HYDROPAC 2503/2614:08ZA vessel named Sidar suffered a security incident and anchored in the Strait of Hormuz at 26-26.10N 056-30.00E; ships advised to keep clear.Strait of Hormuz · Iran
- Other · HYDROPAC 2504/2614:16ZVessel Senegal Prosperity suffered a security incident and anchored at 26-18.80N 056-33.60E in Strait of Hormuz; vessels should keep clear.Strait of Hormuz · Iran
- Missiles · HYDROPAC 2505/2614:25ZSpace debris hazardous operations occur daily from 1134Z to 1738Z, 5 through 11 September, in the South Pacific.South Pacific
- Icebergs · HYDROLANT 1732/2614:30ZIcebergs reported in the South Atlantic near Antarctica at multiple coordinates, including A76C, A81, D33B and D33C; message canceled September 2, 2026.South Atlantic · Antarctica
- Exercises · HYDROLANT 1733/2616:30ZHazardous operations occur daily 0800Z-1800Z on September 4-5 and 7-12 off Scotland, within 27 miles of 57-27.40N 008-20.50W and 20 miles of 57-43.40N 008-58.80W.North Atlantic · Scotland
- Missiles · HYDROARC 201/2616:52ZSpace debris hazard operations daily 01:28 to 02:44 UTC from September 15 to October 15 in Arctic area bounded by 81-42N 134-18W and 77-06N 161-35W.Arctic
- Missiles · NAVAREA IV 845/2616:52ZSpace debris hazardous operations occur daily from 0021Z to 0151Z, 15 Sep to 15 Oct, in two North Atlantic areas.North Atlantic
- Missiles · HYDROPAC 2506/2616:52ZHazardous space debris operations are active daily in the South Pacific from September 15 to October 15.South Pacific
- Icebergs · NAVAREA IV 846/2619:15ZNorth American Ice Service bulletin for September 2, 2026 reports iceberg and sea ice limits along tracklines, with reporting instructions.
- Exercises · HYDROPAC 2507/2621:27ZHazardous operations occur daily from September 6 to 11, 2000 to 0400 UTC, within three miles of 36-28.65S 174-09.63E in the Tasman Sea, New Zealand.Tasman Sea · New Zealand
- Wrecks · HYDROARC 202/2600:11ZSeveral shoals reported in Davis Strait, Canada.Davis Strait · Canada
- Exercises · HYDROPAC 2508/2600:27ZHazardous operations are scheduled near Guam on September 5-6, with UTC times 03:30-07:00 and 01:00-08:00, canceling a previous warning.North Pacific · Guam
- Surveys · HYDROLANT 1734/2600:48ZUnderwater operations daily from 1100Z to 2100Z Sep 3-17 by vessels Commander K and Comando B at 20-23.90S 040-08.68W, wide berth requested.South Atlantic · Brazil
- Exercises · HYDROPAC 2509/2603:12ZHazardous operations occur near Guam in the North Pacific from 030001Z to 030800Z September, with cancellation at 030900Z September.North Pacific · Guam
- Missiles · HYDROARC 203/2607:44ZRussia conducts missile and gunnery operations in Barents Sea areas daily from 5 to 10 September, 0500 to 1900 UTC.Barents Sea · Russia
- Surveys · HYDROLANT 1735/2609:26ZSurvey operations by vessel Ramform Atlas towing long cables are in progress in the North Sea off Norway; six mile berth requested.North Sea · Norway
- Exercises · NAVAREA IV 847/2610:58ZHazardous operations occur September 4 from 11:30 to 16:00 UTC within 3 miles of 05-01N 051-58W near French Guiana. Cancel at 17:00 UTC.North Atlantic · French Guiana
- Wrecks · HYDROARC 204/2611:44ZA depth of 9.8 meters is reported at 68-35.51N 073-54.19E in the Kara Sea, Russia.Kara Sea · Russia
- Missiles · HYDROPAC 2510/2612:15ZHazardous space debris operations in South Pacific daily September 7-8, 1800-2000Z, within a defined area.South Pacific
- Quakes · USGS-US7000TDMPin force12:28Z71 km wsw of puerto madero, mexico
- Quakes · USGS-US7000TDMSin force12:35ZEarthquake magnitude 5.9 (mww) in 34.981S 109.026W, depth 10 km at 021235Z sep 26Southern East Pacific Rise
- Icebergs · HYDROARC 205/2614:21ZIcebergs reported in area bound by 78-20.00N 108-00.00E, 77-46.60N 115-23.60E, 77-20.40N 116-57.40E,…Laptev Sea · Russia
- Icebergs · HYDROLANT 1737/2614:41ZIcebergs reported in: a. A76C, 53-14.00S 027-48.00WSouth Atlantic
- Debris · HYDROLANT 1738/2615:47ZObject adrift in 44-31.22N 029-33.85E at 020750Z sepRomania
- Surveys · NAVAREA IV 848/2617:00ZNAVAREA IV mobile offshore drilling units positions at 021645Z sep: a. agosto 12 19-23.0N 092-03.1W
- Exercises · HYDROARC 206/2617:41ZHazardous operations 0500Z to 1900Z daily 05 thru 10 sep in area bound by 70-12.00N 033-36.00E, 70-12.00N…Barents Sea · Russia
- Icebergs · NAVAREA IV 849/2620:02ZNorth american ice service (nais) iceberg bulletin 030001Z sep
- Quakes · USGS-US7000TDRVin force23:46ZEarthquake magnitude 6.2 (mww) in 56.206S 027.909W, depth 126 km at 022346Z sep 26South Sandwich Islands Region
- Other · AUSCOAST 287/26in force00:37ZTide data are unreliable from gauges at Turtle Head, Ince Point, Goods Island, and Nardana Patches in Torres Strait.
- Nav aids · HYDROLANT 1739/2600:41ZBarra de itabapoana light 21-18.82S 040-57.95W unlit until 01 mar 27South Atlantic · Brazil
- Surveys · AUSCOAST 288/26in force02:38ZSpecial purpose vessel Skandi Hercules is conducting underwater operations at 19-38.90S 115-55.60E, requesting 5 nautical miles clearance.
- Storms · JTWC-WP172603:00ZTropical storm 17W (saudel)Western North Pacific
- Surveys · HYDROPAC 2513/2603:21ZUnderwater operations in progress until further notice by M/V skandi hercules in 19-38.90S 115-55.60EEastern Indian Ocean · Australia
- Surveys · AUSCOAST 289/26in force03:57ZSpecial purpose vessel Lodbrog is conducting underwater operations in an area near 31.49 S, 115.18 E, requesting 1 nautical mile clearance.
- Icebergs · HYDROLANT 1740/2605:39ZIcebergs reported in: a. A84, 71-34.80S 101-43.80WScotia Sea · South Atlantic · South Pacific · Antarctica
- Cable ops · HYDROPAC 2515/2606:00ZUnderwater operations in progress until further notice by cableship lodbrog in area bound by 31-48.90S…Eastern Indian Ocean · Australia
- Missiles · HYDROPAC 2516/2606:36ZHazardous operations 0001Z to 2330Z daily 07 thru 19 sep: a. rocket launching in area bound by 39-12.00S…South Pacific · New Zealand
- Missiles · HYDROPAC 2517/2606:56ZHazardous operations, space debris 0001Z to 2330Z daily 07 thru 19 sep in areas bound by: a. 36-30.00S…South Pacific
- Exercises · HYDROPAC 2518/2607:22ZHazardous operations 0100Z to 1300Z daily 08 thru 10 sep in area within three miles of 13-27.00N 145-08.00ENorth Pacific · Guam
- Exercises · HYDROPAC 2519/2607:41ZHazardous operations 0100Z to 0800Z daily 08 thru 10 sep in area bound by 17-00.00N 145-04.98E, 17-00.00N…North Pacific · Philippine Sea · Northern Mariana Islands
- Exercises · HYDROPAC 2520/2608:09ZHazardous operations 062200Z to 070100Z sep in area bound by 13-10.00N 144-30.00E, 13-10.00N 144-41.98E,…North Pacific · Guam
- Exercises · HYDROPAC 2521/2608:19ZHazardous operations 070300Z to 070700Z sep in area bound by 13-10.00N 144-30.00E, 13-10.00N 144-41.98E,…North Pacific · Guam
- Exercises · HYDROPAC 2522/2608:26ZHazardous operations 2200Z to 0700Z daily 07 thru 11 sep in area bound by 13-45.00N 144-19.98E, 13-45.00N…North Pacific · Philippine Sea · Guam
- Exercises · HYDROPAC 2523/2608:35ZHazardous operations 082200Z to 090300Z sep in area bound by 13-04.00N 145-18.00E, 13-04.00N 147-02.00E,…North Pacific · Guam · Northern Mariana Islands
- Storms · NHC-AL05202609:00ZPotential tropical cyclone edouard (AL052026)Atlantic
- Exercises · HYDROPAC 2524/2609:41ZHazardous operations 1400Z to 1359Z daily 06 thru 09 sep in areas bound by: a. 12-49.98N 145-00.00E,…North Pacific · Guam
- Exercises · HYDROPAC 2525/2610:30ZHazardous operations 072100Z to 072300Z and 080100Z to 080300Z in area bound by 13-36.00N 143-07.00E,…North Pacific · Guam
- Exercises · HYDROPAC 2526/2610:59ZHazardous operations 062100Z to 070200Z in area bound by 12-50.00N 145-00.00E, 12-50.00N 145-10.00E,…North Pacific · Guam
- Quakes · USGS-US7000TDVTin force11:17Z84 km ssw of nikolski, alaska
- Exercises · NAVAREA XI 394/26in force12:00ZHazardous operations are underway in the North Pacific Marianas area from 08 to 10 September, within a defined boundary, until 100900Z September.North Pacific, Marianas
- Exercises · HYDROPAC 2527/2612:02ZHazardous operations 061831Z to 121829Z and 131831Z to 191829Z sep in area bound by 19-14.60N 084-53.70E,…Bay of Bengal · India
- Cable ops · HYDROPAC 2528/2612:19ZCable operations 04 sep thru 05 oct by M/V rebecca along tracklines joining: a. 09-07.39N 069-00.80E,…Arabian Sea
- Icebergs · HYDROARC 208/2612:55ZIcebergs reported at 031212Z sep in: a. 78-00.50N 112-31.00ELaptev Sea · Russia
- Surveys · HYDROLANT 1741/2613:10ZUnderwater operations 1100Z to 2100Z daily 04 thru 18 sep by M/V comando b and M/V linden trader in…South Atlantic · Brazil
- Surveys · HYDROLANT 1742/2613:19ZUnderwater operations 1000Z to 2000Z daily 01 thru 30 sep by M/V coral do atlantico in area bound by…South Atlantic · Brazil
- Surveys · HYDROLANT 1743/2613:33ZUnderwater operations 1100Z to 2100Z daily 04 thru 18 sep by M/V charlie and M/V comando b in 20-24.27S…South Atlantic · Brazil
- Icebergs · HYDROLANT 1745/2613:47ZIcebergs reported in: a. A81, 58-43.00S 047-18.00WScotia Sea · South Atlantic · South Shetland Islands
- Exercises · NAVAREA II 315/26in force13:58ZSpecial operationsCanarias
- Storms · JTWC-WP2226in force15:00ZTropical storm 22W (krovanh)Western North Pacific
- Storms · NHC-EP112026in force15:00ZHurricane karina (EP112026)Eastern North Pacific
- Storms · NHC-EP132026in force15:00ZHurricane marie (EP132026)Eastern North Pacific
- Storms · NHC-EP122026in force15:00ZHurricane lowell (EP122026)Eastern North Pacific
- Storms · JTWC-EP1126in force16:00ZHurricane 11E (karina)Eastern North Pacific
Cancelled · 122
- Missiles · HYDROPAC 2456/2609:31ZRocket launching hazardous operations occur from 012112Z to 012157Z September in an area of the South Pacific near New Zealand.South Pacific · New Zealand
- Exercises · NAVAREA XI 342/2616:21ZGunnery exercise in North Pacific near Nanpo Shoto daily from 31 July to 30 August, 2300Z to 0900Z, in a bounded area.North Pacific, Nanpo Shoto · Gunnery
- Exercises · NAVAREA XI 341/2616:21ZGunnery exercise in Japan Sea occurs daily 2200Z to 1000Z on specified dates from 31 July to 30 August in a bounded area.Japan Sea · Gunnery
- Missiles · NAVAREA XI 377/2616:21ZMissile 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 · NAVAREA XII 593/2619:00ZHazardous operations, rocket launching: a. 041128Z to 041553Z sep, alternate 051113Z to 051538Z, 061059Z to…North Pacific · California
- Exercises · HYDROPAC 2474/2619:00ZHazardous operations 042200Z to 051359Z and 051400Z to 061359Z sep in area bound by 13-45.00N 144-19.98E,…North Pacific · Philippine Sea · Guam
- Exercises · HYDROPAC 2485/2619:00ZHazardous operations 052100Z to 060800Z sep in area bound by 13-10.00N 144-30.00E, 13-10.00N 144-41.98E,…North Pacific · Guam
- Exercises · HYDROPAC 2487/2619:00ZHazardous operations 052300Z to 060630Z sep in area bound by 12-50.00N 145-00.00E, 12-50.00N 145-10.00E,…North Pacific · Guam
- Missiles · NAVAREA XII 595/2619:00ZHazardous operations, space debris 2133Z to 2355Z daily 04 thru 10 sep in area bound by 27-28.71N…North Pacific · Johnston Atoll
- Exercises · NAVAREA XII 596/2619:00ZHazardous operations 011800Z to 020100Z sep, alternate 031800Z to 040100Z sep in area bound by 32-46.00N…North Pacific · California
- Other · HYDROLANT 1724/2619:00ZCancel HYDROLANT 1721/26, 1723/26 and this msgSouth Atlantic
- Icebergs · HYDROLANT 1722/2619:00ZIcebergs reported in: a. A76C, 53-22.00S 028-16.00WSouth Atlantic · South Shetland Islands
- Exercises · HYDROPAC 2492/2619:00ZHazardous operations 0001Z to 1600Z daily 01 thru 30 sep except fridays and saturdays in areas bound by: a.…Bay of Bengal · Bangladesh
- Missiles · HYDROPAC 2488/2619:00ZHazardous operations, space debris 051300Z to 051738Z, 061246Z to 061724Z, 071232Z to 071710Z, 081217Z to…South Pacific
- Surveys · NAVAREA IV 838/2619:00ZTrinidad and tobagoCaribbean Sea
- Nav aids · HYDROPAC 2470/2619:00ZEden reef light in 14-04.63S 143-55.01E unreliableCoral Sea · Australia
- Surveys · HYDROLANT 1698/2619:00ZSurvey operations 290900Z aug thru 072200Z jan 27 by M/V tupan III in area bound by 25-34.77S 048-20.62W,…South Atlantic · Brazil
- Nav aids · HYDROLANT 1699/2619:00ZYellow light mooring buoy established temporarily in 04-35.70S 037-02.79WSouth Atlantic · Brazil
- Nav aids · HYDROLANT 1700/2619:00ZLes pierres noires lighthouse 48-18.60N 004-54.80W unlitBay of Biscay · France
- Exercises · HYDROPAC 2471/2619:00ZHazardous operations 1330Z to 1900Z daily 02 and 04 sep in area bound by 32-55.00S 072-00.00W, 32-55.00S…South Pacific · Chile
- Exercises · HYDROLANT 1703/2619:00ZHazardous operations 020001Z to 022359Z sep in area bound by 23-35.00N 017-00.00W, 23-35.08N 017-21.75W,…North Atlantic · Western Sahara
- Exercises · HYDROLANT 1705/2619:00ZHazardous operations 030001Z to 032359Z sep in area bound by 29-53.00N 010-15.00W, 29-53.00N 010-38.50W,…North Atlantic · Morocco
- Debris · HYDROLANT 1707/2619:00ZDangerous object adrift in 44-31.00N 029-28.00E at 291450Z augBlack Sea · Romania
- Other · HYDROPAC 2472/2619:00ZF/V sg 66014 ts sunk in 10-02.08N 106-57.98ESouth China Sea · Vietnam
- Exercises · HYDROLANT 1708/2619:00ZHazardous operations 301100Z aug thru 030001Z sep in area bound by 53-08.40N 006-03.50W, 53-08.40N…Saint Georges Channel · Ireland
- Icebergs · HYDROARC 196/2619:00ZIceberg reported in 77-48.20N 114-58.20ELaptev Sea
- Cable ops · HYDROPAC 2473/2619:00ZUnderwater operations in progress until further notice by cableship lodbrog in area bound by 31-49.50S…Eastern Indian Ocean · Australia
- Wrecks · HYDROLANT 1709/2619:00ZDangerous wreck in 32-38.57S 051-36.80WSouth Atlantic · Uruguay
- Derelicts · HYDROLANT 1710/2619:00ZDerelict vessel adrift in 15-54.09N 016-34.57WNorth Atlantic · Mauritania
- Other · HYDROPAC 2493/2619:00ZMining exercises in progress until 06 sep in 05-37.33S 039-06.20EWestern Indian Ocean · Tanzania
- Exercises · HYDROPAC 2478/2619:00ZHazardous operations 0300Z to 1900Z daily 01 thru 04, 07 thru 11, 14 thru 18, 21 thru 25 and 28 thru 30 sep…Arabian Sea · Pakistan
- Missiles · HYDROPAC 2479/2619:00ZHazardous operations, space debris 312129Z to 312152Z aug in area bound by 27-47.00S 176-37.00W, 29-07.00S…South Pacific · New Zealand
- Other · HYDROPAC 2480/2619:00ZM/V burgan suffered a security incident and anchored in 26-22.50N 056-20.40EStrait of Hormuz · Oman
- Exercises · HYDROPAC 2481/2619:00ZHazardous operations 010230Z to 011130Z sep in area bound by 17-23.00N 083-43.00E, 17-23.00N 083-53.00E,…Bay of Bengal · India
- Wrecks · HYDROPAC 2482/2619:00ZF/V om shree masthi amma sank in 14-47.21N 074-01.62EArabian Sea · India
- Icebergs · NAVAREA IV 841/2619:00ZNorth american ice service (nais) iceberg bulletin 310001Z aug
- Cable ops · HYDROPAC 2483/2619:00ZCable operations in progress until 15 dec by M/V topaz and M/V bureya within two miles of trackline joining…Sea of Japan · Russia
- Exercises · HYDROPAC 2484/2619:00ZHazardous operations in progress until 030500Z sep in areas bound by: a. 51-03.30N 156-22.20E, 50-43.10N…North Pacific · Sea of Okhotsk · Kamchatka
- Derelicts · NAVAREA IV 842/2619:00ZDerelict M/V unlit and anchored in 15-54.77N 078-41.81WCaribbean Sea
- Exercises · HYDROPAC 2486/2619:00ZHazardous operations 050330Z to 050700Z and 060100Z to 060800Z sep in area bound by 13-10.00N 144-30.00E,…North Pacific · Guam
- Icebergs · HYDROLANT 1716/2619:00ZIcebergs reported in: a. A84, 71-34.80S 101-43.80WScotia Sea · South Atlantic · South Pacific · Antarctica
- Wrecks · HYDROARC 195/2619:00ZDepths reported: a. 14.3 meters in 70-14.06N 082-44.52EKara Sea · Russia
- Cable ops · HYDROLANT 1720/2619:00ZCable operations until further notice by cableship sophie germain in area bound by 40-40.27N 027-15.72E,…Sea of Marmara · Turkey
- Missiles · HYDROPAC 2489/2619:00ZMissile operations 1400Z to 0900Z daily 04 thru 11 sep in area bound by 56-34.00N 154-14.00E, 56-34.00N…North Pacific · Sea of Okhotsk · Kamchatka
- Debris · HYDROLANT 1717/2619:00ZObject adrift in vicinity 44-31.60N 029-32.10E at 310515Z augBlack Sea · Romania
- Debris · HYDROLANT 1718/2619:00ZObject adrift in vicinity 44-04.36N 029-35.31E at 310530Z augBlack Sea · Romania
- Exercises · HYDROPAC 2490/2619:00ZGunnery exercises in progress until 031200Z sep in areas bound by: a. 50-05.00N 155-07.00E, 49-55.00N…North Pacific · Sea of Okhotsk · Kuril Islands
- Missiles · HYDROPAC 2491/2619:00ZHazardous operations, space debris 012119Z to 012145Z sep in area bound by 28-16.00S 170-42.00W, 29-09.00S…South Pacific
- Other · NAVAREA III 34/2600:00ZResourseful platform is in the Adriatic Sea at 44-31.60N 012-30.60E, height 112 meters, until Aug 26 23:59 UTC.Adriatic Sea
- Icebergs · HYDROLANT 1732/2614:40ZIcebergs reported in the South Atlantic near Antarctica at multiple coordinates, including A76C, A81, D33B and D33C; message canceled September 2, 2026.South Atlantic · Antarctica
- Missiles · HYDROARC 197/2614:40ZMissile operations are scheduled in Barents and White Seas near Russia on 04 and 05 September, 0100Z to 1400Z daily.Barents Sea · White Sea · Russia
- Icebergs · NAVAREA IV 843/2614:40ZIceberg and sea ice limits are in effect along tracklines in the North Atlantic as of September 1, with reports requested to authorities.
- Derelicts · NAVAREA XII 597/2614:40ZA 12-meter grey-hulled derelict vessel is partially submerged and adrift at 09-44.50N 137-14.20W as of August 29, 23:20 UTC.North Pacific
- Missiles · HYDROARC 199/2614:40ZRocket launching hazardous operations daily from 04 to 10 September, 1600Z to 2135Z, in areas of Greenland Sea and Norwegian Sea near Norway.Greenland Sea · Norwegian Sea · Norway
- Icebergs · HYDROLANT 1727/2614:40ZIcebergs reported in Scotia Sea, South Atlantic, South Pacific, Antarctica at positions A84, A85, D33A, D33C.Scotia Sea · South Atlantic · South Pacific · Antarctica
- Nav aids · NAVAREA XII 598/2614:40ZHF/MF unreliable and DSC inoperative at USCG remote communication facilities (Pt Reyes, Honolulu, Kodiak, and others) in North Pacific on Sep 4, 15:00-17:30 UTC; cancel 18:30 UTC.North Pacific
- Nav aids · HYDROPAC 2495/2614:40ZThe U.S. Coast Guard remote communication facility at Guam has unreliable high frequency and medium frequency and inoperative digital selective calling from 041500Z to 041730Z September.North Pacific · Guam
- Nav aids · NAVAREA IV 844/2614:40ZHF/MF radio unreliable and DSC inoperative from 041500Z to 041730Z September at USCG remote facilities: Boston, Chesapeake, Charleston, Miami, New Orleans, San Juan; cancel 041830Z.North Atlantic
- Exercises · HYDROPAC 2496/2614:40ZHazardous operations in Bay of Bengal, India, from 020630Z to 021030Z Sep in an area bounded by 17-43N 083-35E, 17-48N 084-06E, 17-07N 083-55E, 17-27N 083-31E.Bay of Bengal · India
- Exercises · HYDROPAC 2497/2614:40ZHazardous operations are underway in the Eastern Indian Ocean near Lakshadweep on September 3, 02:00-07:30 and 08:30-11:30 UTC.Eastern Indian Ocean · Lakshadweep
- Missiles · HYDROPAC 2498/2614:40ZRocket launching hazardous operations in the Andaman Sea near India, in specified areas from September 3 2100 UTC to September 4 0100 UTC.Andaman Sea · India
- Exercises · HYDROPAC 2500/2614:40ZHazardous operations in Bay of Bengal near India between 02:30 and 11:30 UTC on September 2.Bay of Bengal · India
- Icebergs · HYDROARC 200/2614:40ZIcebergs reported in Kara Sea, Russia, on 1 September at 1145Z at 77-44.40N 097-30.50E, 77-46.30N 097-56.00E, and 77-50.30N 098-22.30E; message cancels on 2 September 2026 at 1311Z.Kara Sea · Russia
- Other · HYDROLANT 1731/2614:40ZMaritime exercises will occur in the Black Sea off Romania on September 7, 8, and 9; a wide berth is requested.Black Sea · Romania
- Exercises · HYDROPAC 2501/2614:40ZHazardous operations daily 0230Z to 0700Z from 14 to 16 Sep within two miles of 21-17.00S 055-20.81E near Reunion. Cancel 160800Z Sep.Eastern Indian Ocean · Reunion
- Exercises · HYDROPAC 2502/2614:40ZHazardous operations in the Red Sea off Saudi Arabia from 0300Z to 1500Z daily 06 to 10 September in a defined area.Red Sea · Saudi Arabia
- Other · HYDROPAC 2503/2614:40ZA vessel named Sidar suffered a security incident and anchored in the Strait of Hormuz at 26-26.10N 056-30.00E; ships advised to keep clear.Strait of Hormuz · Iran
- Other · HYDROPAC 2504/2614:40ZVessel Senegal Prosperity suffered a security incident and anchored at 26-18.80N 056-33.60E in Strait of Hormuz; vessels should keep clear.Strait of Hormuz · Iran
- Missiles · HYDROPAC 2505/2614:40ZSpace debris hazardous operations occur daily from 1134Z to 1738Z, 5 through 11 September, in the South Pacific.South Pacific
- Other · AUSCOAST 286/2620:53ZA current meter at position 10 degrees 30.29 minutes south, 142 degrees 14.63 minutes east is inoperative.
- Spills · NOAAORR-1120400:00Z700 rockaway tpke, lawrence, ny 11559, USAOverturned Fuel Truck; Lawrence, New York
- Spills · NOAAORR-1120500:00ZOn august 19, 2026, the noaa scientific support coordinator (ssc) for district oceania was notified of a…Potential Release From Motor Vessel In Distress; Pacific Ocean · Pacific Ocean
- Quakes · USGS-US7000TCXN09:02ZEarthquake magnitude 5.8 (mb) in 30.146S 177.888W, depth 35 km at 300902Z aug 26Kermadec Islands, New Zealand
- Missiles · HYDROPAC 2506/2612:00ZHazardous space debris operations are active daily in the South Pacific from September 15 to October 15.South Pacific
- Icebergs · NAVAREA IV 846/2612:00ZNorth American Ice Service bulletin for September 2, 2026 reports iceberg and sea ice limits along tracklines, with reporting instructions.
- Exercises · HYDROPAC 2507/2612:00ZHazardous operations occur daily from September 6 to 11, 2000 to 0400 UTC, within three miles of 36-28.65S 174-09.63E in the Tasman Sea, New Zealand.Tasman Sea · New Zealand
- Wrecks · HYDROARC 202/2612:00ZSeveral shoals reported in Davis Strait, Canada.Davis Strait · Canada
- Exercises · HYDROPAC 2508/2612:00ZHazardous operations are scheduled near Guam on September 5-6, with UTC times 03:30-07:00 and 01:00-08:00, canceling a previous warning.North Pacific · Guam
- Surveys · HYDROLANT 1734/2612:00ZUnderwater operations daily from 1100Z to 2100Z Sep 3-17 by vessels Commander K and Comando B at 20-23.90S 040-08.68W, wide berth requested.South Atlantic · Brazil
- Missiles · HYDROPAC 2510/2612:00ZHazardous space debris operations in South Pacific daily September 7-8, 1800-2000Z, within a defined area.South Pacific
- Wrecks · HYDROARC 204/2612:00ZA depth of 9.8 meters is reported at 68-35.51N 073-54.19E in the Kara Sea, Russia.Kara Sea · Russia
- Surveys · HYDROLANT 1735/2612:00ZSurvey operations by vessel Ramform Atlas towing long cables are in progress in the North Sea off Norway; six mile berth requested.North Sea · Norway
- Exercises · HYDROLANT 1733/2612:00ZHazardous operations occur daily 0800Z-1800Z on September 4-5 and 7-12 off Scotland, within 27 miles of 57-27.40N 008-20.50W and 20 miles of 57-43.40N 008-58.80W.North Atlantic · Scotland
- Missiles · HYDROARC 201/2612:00ZSpace debris hazard operations daily 01:28 to 02:44 UTC from September 15 to October 15 in Arctic area bounded by 81-42N 134-18W and 77-06N 161-35W.Arctic
- Missiles · NAVAREA IV 845/2612:00ZSpace debris hazardous operations occur daily from 0021Z to 0151Z, 15 Sep to 15 Oct, in two North Atlantic areas.North Atlantic
- Exercises · NAVAREA IV 847/2612:00ZHazardous operations occur September 4 from 11:30 to 16:00 UTC within 3 miles of 05-01N 051-58W near French Guiana. Cancel at 17:00 UTC.North Atlantic · French Guiana
- Exercises · HYDROPAC 2509/2612:00ZHazardous operations occur near Guam in the North Pacific from 030001Z to 030800Z September, with cancellation at 030900Z September.North Pacific · Guam
- Missiles · HYDROARC 203/2612:00ZRussia conducts missile and gunnery operations in Barents Sea areas daily from 5 to 10 September, 0500 to 1900 UTC.Barents Sea · Russia
- Surveys · NAVAREA IV 783/2617:00ZNAVAREA IV lists positions of mobile offshore drilling units as of August 12 at 14:40 UTC.
- Nav aids · HYDROLANT 492/2600:41ZBarra de Itabapoana light is unlit until 08 September 2026; previous warnings cancelled.South Atlantic · Brazil
- Surveys · AUSCOAST 285/2604:08ZSpecial purpose vessel Lodbrog is conducting underwater operations in area bounded by 31-48.45 S to 31-49.50 S and 115-21.14 E to 115-22.43 E. One nautical mile clearance requested.
- Quakes · USGS-US7000TD2Z08:03Z44 km nne of ruteng, indonesia
- Exercises · HYDROPAC 2526/2613:50ZHazardous operations 062100Z to 070200Z in area bound by 12-50.00N 145-00.00E, 12-50.00N 145-10.00E,…North Pacific · Guam
- Cable ops · HYDROPAC 2528/2613:50ZCable operations 04 sep thru 05 oct by M/V rebecca along tracklines joining: a. 09-07.39N 069-00.80E,…Arabian Sea
- Icebergs · HYDROARC 208/2613:50ZIcebergs reported at 031212Z sep in: a. 78-00.50N 112-31.00ELaptev Sea · Russia
- Surveys · HYDROLANT 1741/2613:50ZUnderwater operations 1100Z to 2100Z daily 04 thru 18 sep by M/V comando b and M/V linden trader in…South Atlantic · Brazil
- Surveys · HYDROLANT 1742/2613:50ZUnderwater operations 1000Z to 2000Z daily 01 thru 30 sep by M/V coral do atlantico in area bound by…South Atlantic · Brazil
- Surveys · HYDROLANT 1743/2613:50ZUnderwater operations 1100Z to 2100Z daily 04 thru 18 sep by M/V charlie and M/V comando b in 20-24.27S…South Atlantic · Brazil
- Icebergs · HYDROLANT 1745/2613:50ZIcebergs reported in: a. A81, 58-43.00S 047-18.00WScotia Sea · South Atlantic · South Shetland Islands
- Icebergs · HYDROARC 205/2613:50ZIcebergs reported in area bound by 78-20.00N 108-00.00E, 77-46.60N 115-23.60E, 77-20.40N 116-57.40E,…Laptev Sea · Russia
- Icebergs · HYDROLANT 1737/2613:50ZIcebergs reported in: a. A76C, 53-14.00S 027-48.00WSouth Atlantic
- Debris · HYDROLANT 1738/2613:50ZObject adrift in 44-31.22N 029-33.85E at 020750Z sepRomania
- Surveys · NAVAREA IV 848/2613:50ZNAVAREA IV mobile offshore drilling units positions at 021645Z sep: a. agosto 12 19-23.0N 092-03.1W
- Exercises · HYDROARC 206/2613:50ZHazardous operations 0500Z to 1900Z daily 05 thru 10 sep in area bound by 70-12.00N 033-36.00E, 70-12.00N…Barents Sea · Russia
- Icebergs · NAVAREA IV 849/2613:50ZNorth american ice service (nais) iceberg bulletin 030001Z sep
- Nav aids · HYDROLANT 1739/2613:50ZBarra de itabapoana light 21-18.82S 040-57.95W unlit until 01 mar 27South Atlantic · Brazil
- Surveys · HYDROPAC 2513/2613:50ZUnderwater operations in progress until further notice by M/V skandi hercules in 19-38.90S 115-55.60EEastern Indian Ocean · Australia
- Icebergs · HYDROLANT 1740/2613:50ZIcebergs reported in: a. A84, 71-34.80S 101-43.80WScotia Sea · South Atlantic · South Pacific · Antarctica
- Cable ops · HYDROPAC 2515/2613:50ZUnderwater operations in progress until further notice by cableship lodbrog in area bound by 31-48.90S…Eastern Indian Ocean · Australia
- Exercises · HYDROPAC 2525/2613:50ZHazardous operations 072100Z to 072300Z and 080100Z to 080300Z in area bound by 13-36.00N 143-07.00E,…North Pacific · Guam
- Exercises · HYDROPAC 2527/2613:50ZHazardous operations 061831Z to 121829Z and 131831Z to 191829Z sep in area bound by 19-14.60N 084-53.70E,…Bay of Bengal · India
- Missiles · HYDROPAC 2516/2613:50ZHazardous operations 0001Z to 2330Z daily 07 thru 19 sep: a. rocket launching in area bound by 39-12.00S…South Pacific · New Zealand
- Missiles · HYDROPAC 2517/2613:50ZHazardous operations, space debris 0001Z to 2330Z daily 07 thru 19 sep in areas bound by: a. 36-30.00S…South Pacific
- Exercises · HYDROPAC 2518/2613:50ZHazardous operations 0100Z to 1300Z daily 08 thru 10 sep in area within three miles of 13-27.00N 145-08.00ENorth Pacific · Guam
- Exercises · HYDROPAC 2519/2613:50ZHazardous operations 0100Z to 0800Z daily 08 thru 10 sep in area bound by 17-00.00N 145-04.98E, 17-00.00N…North Pacific · Philippine Sea · Northern Mariana Islands
- Exercises · HYDROPAC 2520/2613:50ZHazardous operations 062200Z to 070100Z sep in area bound by 13-10.00N 144-30.00E, 13-10.00N 144-41.98E,…North Pacific · Guam
- Exercises · HYDROPAC 2521/2613:50ZHazardous operations 070300Z to 070700Z sep in area bound by 13-10.00N 144-30.00E, 13-10.00N 144-41.98E,…North Pacific · Guam
- Exercises · HYDROPAC 2522/2613:50ZHazardous operations 2200Z to 0700Z daily 07 thru 11 sep in area bound by 13-45.00N 144-19.98E, 13-45.00N…North Pacific · Philippine Sea · Guam
- Exercises · HYDROPAC 2523/2613:50ZHazardous operations 082200Z to 090300Z sep in area bound by 13-04.00N 145-18.00E, 13-04.00N 147-02.00E,…North Pacific · Guam · Northern Mariana Islands
- Exercises · HYDROPAC 2524/2613:50ZHazardous operations 1400Z to 1359Z daily 06 thru 09 sep in areas bound by: a. 12-49.98N 145-00.00E,…North Pacific · Guam
- Storms · JTWC-WP172615:26ZTropical storm 17W (saudel)Western North Pacific
- Storms · NHC-AL05202617:24ZPotential tropical cyclone edouard (AL052026)Atlantic
Not for navigation. Counts include only warnings we display; ongoing search-and-rescue traffic is excluded until 30 days after it closes.