Navigational warnings on 2026-08-27
UTC day · today
- issued
- 24
- cancelled
- 7
- in force at end
- 500
- of these still in force
- 16
Issued · by sea
| North Pacific Ocean | 7 |
| Philippine Sea | 4 |
| North Atlantic Ocean | 4 |
| Black Sea | 2 |
| English Channel | 1 |
| South Atlantic Ocean | 1 |
| Gulf of Aden | 1 |
| Laccadive Sea | 1 |
HYDROPAC 11 · HYDROLANT 5 · NAVAREA IV 3 · NAVAREA XII 2 · NAVAREA III 1 · NAVAREA XI 1 · USGS earthquakes 1
Issued · 24
- Surveys · NAVAREA III 128/26in force00:00ZDrilling operations by Yavuz rig and support vessels are underway in the Black Sea from 28 Aug 26 to 11 Nov 26, requiring 10 nm receipt.Black Sea
- Exercises · HYDROPAC 2460/26in force00:31ZNaval hazardous operations daily 01 through 05 September, 1400 to 1359 UTC, in areas near Guam, cancelled at 061459 UTC September 26.North Pacific · Guam
- Exercises · HYDROPAC 2487/2600:37ZHazardous operations 052300Z to 060630Z sep in area bound by 12-50.00N 145-00.00E, 12-50.00N 145-10.00E,…North Pacific · Guam
- Exercises · HYDROPAC 2447/26in force00:44ZHazardous operations occur daily from 2200Z to 1000Z, 30 August through 3 September, near Guam in the Philippine Sea.North Pacific · Philippine Sea · Guam
- Exercises · HYDROPAC 2448/26in force00:59ZHazardous operations near Guam from 0100-0600 UTC on Aug 31 and Sep 1, and 2000-0800 UTC on Sep 2-3.North Pacific · Guam
- Exercises · HYDROPAC 2449/26in force01:14ZHazardous operations occur daily through September 3, from 0100 to 1300 UTC, within three miles of two positions near Guam.North Pacific · Philippine Sea · Guam
- Nav aids · HYDROPAC 2450/26in force03:53ZRadar beacon at North Reef Light in Coral Sea, Australia, at 23-11.10S 151-54.18E is unreliable.Coral Sea · Australia
- Exercises · HYDROPAC 2453/26in force06:15ZHazardous operations occur daily from 0100Z to 0800Z September 1-3 in an area near the Northern Mariana Islands in the Philippine Sea.North Pacific · Philippine Sea · Northern Mariana Islands
- Surveys · HYDROLANT 1678/2608:48ZUnderwater operations daily from 28 August to 11 September by vessels Comando B and Elati at 20-23.40S 040-09.98W; wide berth requested.South Atlantic · Brazil
- Surveys · NAVAREA IV 832/26in force10:37ZUnderwater operations by vessel Seven Seas near Trinidad and Tobago until 052200 UTC December, 500 meter berth requested.North Atlantic
- Surveys · NAVAREA IV 833/26in force10:53ZSurvey operations by vessel Delta Skipper are underway near Trinidad and Tobago until September 2 at 18:00, requesting a 500 meter berth.North Atlantic
- Wrecks · HYDROPAC 2455/26in force11:21ZIn the Eastern Indian Ocean, off India, fishing vessel Shri Balajaneya is sunk at 13-36.00N 074-36.50E.Eastern Indian Ocean · India
- Missiles · HYDROPAC 2456/2611:58ZRocket 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 392/26in force12:00ZGunnery exercise daily 2300Z to 0900Z from Aug 31 to Sep 29 in North Pacific, Nanpo Shoto.North Pacific, Nanpo Shoto · Gunnery
- Exercises · HYDROPAC 2457/26in force12:10ZGunnery exercises occur daily from 2300Z to 0900Z, August 31 to September 29, in the North Pacific.North Pacific
- Exercises · HYDROLANT 1682/2613:37ZHazardous operations in North Atlantic within 41 miles of 55-05N 019-00W from September 1 1600Z to September 2 1300Z.North Atlantic
- Nav aids · HYDROLANT 1684/2617:05ZFog signal at Dungeness Light, England, is inoperative; warnings 1680/26 and 1681/26 are canceled.English Channel · England
- Exercises · NAVAREA XII 588/26in force17:29ZHazardous operations are underway off California on August 31 from 13:00 to 21:00 Coordinated Universal Time in a bounded area.North Pacific · California
- Icebergs · NAVAREA IV 834/26in force19:02ZIceberg bulletin for the North Atlantic on August 28 defines iceberg limits and requests reports of icebergs.
- Quakes · USGS-US7000TCF321:07Z145 km n of caluula, somalia
- Nav aids · HYDROPAC 2458/26in force21:52ZUnited States Coast Guard remote communication facility in Guam at 13-29N 144-50E has high-frequency NAVTEX and SITOR services off air.North Pacific · Guam
- Containers · HYDROLANT 1685/2622:41ZContainers are adrift near 44-37.93N 029-46.92E in the Black Sea off Romania, as of 14:55 UTC on August 27.Black Sea · Romania
- Exercises · NAVAREA XII 589/26in force23:27ZHazardous operations are scheduled off California September 1 1800 UTC to September 2 0100 UTC, with alternate September 3 to 4, in a defined area.North Pacific · California
- Cable ops · HYDROLANT 1687/2623:49ZCable operations by cableship Sovereign continue near Orkney Islands at 59-49N 002-58W. One mile berth requested.North Atlantic · Orkney Islands
Cancelled · 7
- Spills · NOAAORR-1120100:00ZPollution surveillance report off santa barbara; montecito, california
- Spills · NOAAORR-1120200:00ZJ444+RW monterey, ca, USADiesel Spill In Monterey Bay; Monterey, California
- Spills · NOAAORR-1120000:00ZMystery sheen at south pass 29; port eads, louisiana
- Surveys · NAVAREA III 102/2600:00ZDrilling operations by Yavuz platform supported by several vessels are underway in the Black Sea from 27 June 2026 to 10 September 2026.Black Sea
- Quakes · USGS-US6000TN3310:02Z207 km sse of amahai, indonesia
- Exercises · NAVAREA XI 380/2613:21ZHazardous operations are taking place in the Marianas area from 27 August 0200Z to 0600Z, with cancellation at 0700Z.North Pacific, Marianas
- Quakes · USGS-US6000TN4114:10Z211 km nne of lospalos, timor leste
Not for navigation. Counts include only warnings we display; ongoing search-and-rescue traffic is excluded until 30 days after it closes.