North Pacific Ocean

IHO sea area 57 · -180° to 180° E, 0° to 58° N

in force
27
last 12 months
293
since 1957
17,250
categories
22

In force now · 27

  1. JTWC-EP1526 · Storms2026-09-14
    Tropical Depression 15E in the eastern North Pacific is forecast near 17.3N 116.7W on 13 September, with 34-knot winds.
  2. NHC-EP152026 · Storms2026-09-14
    Tropical depression fifteen-e (EP152026)
  3. NAVAREA XI 403/26 · Exercises2026-09-09
    Gunnery exercise within 25 miles of 31-14-14N 144-26-48E in North Pacific, Nanpo Shoto, daily from 2100Z to 0900Z, Sep 13 to 17.
  4. NAVAREA XI 400/26 · Nav aids2026-09-07
    The Guam high-frequency NAVTEX station at 13-29.0N 144-50.0E in the Marianas, North Pacific, is off air.
  5. NOAAORR-11215 · Spills2026-09-07
    On September 7, 2026, a tanker truck carrying asphalt crashed into Trapper Slough near Stockton, California, causing an oil spill.
  6. HYDROPAC 2457/26 · Exercises2026-08-27
    Gunnery exercises occur daily from 2300Z to 0900Z, August 31 to September 29, in the North Pacific.
  7. NAVAREA XI 392/26 · Exercises2026-08-27
    Gunnery exercise daily 2300Z to 0900Z from Aug 31 to Sep 29 in North Pacific, Nanpo Shoto.
  8. NAVAREA XII 586/26 · Exercises2026-08-21
    Hazardous operations are underway off California from September 1 0800 UTC to October 1 0800 UTC in a defined area.
  9. NAVAREA XII 584/26 · Exercises2026-08-21
    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.
  10. NAVAREA XII 585/26 · Exercises2026-08-21
    Hazardous operations are occurring off California in the North Pacific from September 1 to October 1 within a specified area.
  11. NAVAREA XI 328/26 · Nav aids2026-07-21
    The Number 1 lighted buoy at Malakal Harbor in the West Carolines, North Pacific, at 07-19.17N 134-27.17E, is missing.
  12. HYDROPAC 2039/26 · Volcanic2026-07-16
    Discolored water with increased likelihood of submarine volcanic activity is reported in Northern Mariana Islands vicinity at 20-26N 145-01E on July 16 at 0013Z.
  13. NAVAREA XI 322/26 · Volcanic2026-07-16
    Discoloured water reported near 20-26.0N 145-01.0E on 16 July at 0013Z; cancels warning 0020/24.
  14. HYDROPAC 1906/26 · Nav aids2026-07-03
    The United States Coast Guard's remote communication facility at Guam (13-29N 144-50E) has unreliable broadcast and communication services.
  15. NAVAREA XII 678/25 · Structures2025-10-30
    A fish farm has been established in an area off Colombia, from 06-03N to 07-11N and 077-28W to 078-08W; wide berth requested.
  16. HYDROPAC 1819/25 · Wrecks2025-07-17
    Depths between 5.4 and 18.8 meters reported at several positions in Marshall Islands, North Pacific.
  17. HYDROPAC 1650/25 · Debris2025-06-24
    Vessel Morning Midas sank in North Pacific at 45-16.88N 179-14.13W; navigate with caution and report debris or oil sheens.
  18. NAVAREA XII 392/25 · Debris2025-06-24
    Motor vessel Morning Midas is reported to have sunk in the North Pacific at 45-16.88N 179-14.13W; vessels should report oil sheens or debris to USCG.
  19. NAVAREA XII 354/25 · Nav aids2025-06-13
    Messaging services are unreliable at Coast Guard remote communication facilities at Point Reyes, Honolulu, Kodiak, Astoria, and Cambria.
  20. NAVAREA XII 338/25 · Nav aids2025-06-07
    The US Coast Guard remote communication facility at Astoria, Oregon (46-10.00N 123-49.00W), is off the air.
  21. NAVAREA XII 208/25 · Nav aids2025-04-06
    Punta Soldado light at 03-48.50N 077-10.80W is discontinued.
  22. NAVAREA XII 862/24 · Cable ops2024-10-28
    Cable operations are in progress in the eastern North Pacific near Kiribati until further notice; a 100-meter berth is requested.
  23. NAVAREA XII 441/24 · Nav aids2024-06-18
    Morro Santo Domingo light at 28-14.37N 114-06.18W is unlit.
  24. NAVAREA XII 93/23 · Missiles2023-02-28
    Periodic missile firing operations by Pacific Missile Range Facility, Barking Sands, Kauai, Hawaii, occur in Whiskey 188; vessels should contact on channel 16.
  25. NAVAREA XII 721/22 · Nav aids2022-09-27
    In El Salvador, mooring buoys at 13-35.23N 089-51.10W are unlit.
  26. NAVAREA XII 720/22 · Nav aids2022-09-27
    Buoy 16 at Puerto de La Union, El Salvador, at 13-20.36N 087-48.99W is unlit.
  27. NAVAREA XII 243/22 · Nav aids2022-04-15
    Coronado Island South Light at 32-23.5N 117-14.5W is unlit; warning 159/21 is now cancelled.

Longest in force

  1. NAVAREA XII 243/22 · Nav aids2022-04-15
    Coronado Island South Light at 32-23.5N 117-14.5W is unlit; warning 159/21 is now cancelled.
  2. NAVAREA XII 720/22 · Nav aids2022-09-27
    Buoy 16 at Puerto de La Union, El Salvador, at 13-20.36N 087-48.99W is unlit.
  3. NAVAREA XII 721/22 · Nav aids2022-09-27
    In El Salvador, mooring buoys at 13-35.23N 089-51.10W are unlit.
  4. NAVAREA XII 93/23 · Missiles2023-02-28
    Periodic missile firing operations by Pacific Missile Range Facility, Barking Sands, Kauai, Hawaii, occur in Whiskey 188; vessels should contact on channel 16.
  5. NAVAREA XII 441/24 · Nav aids2024-06-18
    Morro Santo Domingo light at 28-14.37N 114-06.18W is unlit.

By year

57
69
71
76
77
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
00
01
02
03
04
05
06
07
08
09
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26

By month (all years)

J
F
M
A
M
J
J
A
S
O
N
D

By category · since 1997

Exercises4,66527%
Incidents4,48526%
Quakes2,41614%
Missiles1,75310%
Spills7775%
Nav aids7654%
Towing5323%
Other5133%
Derelicts4773%
Cable ops2291%
Debris1641%
Surveys1481%
Ordnance1161%
Containers1131%
Wrecks370%
Storms340%
Volcanic130%
Restricted60%
Mines40%
Piracy10%
Icebergs10%
Structures10%

Archive · 17,223 cancelled

  1. NAVAREA XII 55/05 · Missiles2005-02-23 → 2005-02-28
    Intermittent missile firing operations 0001Z to 2359Z daily monday thru sunday in the naval air warfare…
  2. HYDROPAC 333/05 · Exercises2005-02-23 → 2005-02-24
    Gunnery exercises 231900Z to 240900Z feb in area bound by 13-10N 144-43E, 13-10N 144-30E, 12-45N 144-30E,…
  3. HYDROPAC 331/05 · Incidents2005-02-22 → 2005-04-06
    Distress signal received on 121.5 mhz in 19-23.4N 166-39.9E
  4. HYDROPAC 319/05 · Exercises2005-02-22 → 2005-02-23
    Gunnery exercises 231900Z to 240900Z feb in area bound by 13-10N 144-43E, 13-10N 144-30E, 12-45N 144-30E,…
  5. HYDROPAC 317/05 · Incidents2005-02-21 → 2005-04-06
    Distress signal received on 121.5 mhz in 19-11.1N 166-51.9E at 211828Z feb
  6. HYDROPAC 308/05 · Exercises2005-02-19 → 2005-02-22
    Hazardous operations 240807Z to 241007Z feb, alternate 0807Z to 1007Z daily 25 feb thru 09 mar in areas…
  7. HYDROPAC 302/05 · Exercises2005-02-18 → 2005-02-20
    Hazardous operations 192000Z to 200700Z feb in areas bound by: 19-00N 173-30E, 19-00N 174-00E, 18-30N…
  8. HYDROPAC 301/05 · Exercises2005-02-18 → 2005-02-19
    Hazardous operations 182000Z to 190700Z feb in areas bound by: 18-00N 165-30E, 17-30N 165-30E, 17-30N…
  9. HYDROPAC 300/05 · Incidents2005-02-18 → 2005-04-06
    Distress signal received on 406 mhz in 33-01N 166-05.7E at 180457Z feb
  10. USGS-USP000DG7Q · Quakes2005-02-15 → 2005-02-18
    2 km nnw of iwatsuki, japan
  11. HYDROPAC 275/05 · Incidents2005-02-15 → 2005-03-31
    Distress signal received on 121.5 mhz in 19-14.2N 166-38.7E at 141750Z feb
  12. NAVAREA XII 42/05 · Missiles2005-02-13 → 2005-02-23
    Intermittent missile firing operations 0001Z to 2359Z daily monday thru sunday in the naval air warfare…
  13. HYDROPAC 271/05 · Exercises2005-02-12 → 2005-02-16
    Hazardous operations 2000Z to 1359Z feb commencing daily 14 thru 16 feb within 10 miles of 16-01N 146-04E
  14. HYDROPAC 259/05 · Exercises2005-02-10 → 2005-02-28
    Hazardous operations 2000Z to 1359Z commencing daily 14 thru 16 feb and 2300Z to 1300Z commencing daily 18…
  15. HYDROPAC 258/05 · Exercises2005-02-10 → 2005-02-15
    Hazardous operations 142000Z to 150700Z feb within ten miles of 14-00N 146-00E
  16. USGS-USP000DFTY · Quakes2005-02-10 → 2005-02-13
    Earthquake magnitude 5.7 (mwb) in 5.268N 082.627W, depth 10 km at 100232Z feb 05
  17. USGS-USP000DFT4 · Quakes2005-02-09 → 2005-02-12
    Earthquake magnitude 6.3 (mwb) in 26.088N 143.997E, depth 24 km at 091846Z feb 05
  18. HYDROPAC 239/05 · Exercises2005-02-07 → 2005-02-17
    Hazardous operations 0301Z to 1116Z daily 13 thru 17 feb in areas bound by: a. 08-54N 167-45E, 08-54N…
  19. NAVAREA XII 36/05 · Missiles2005-02-06 → 2005-02-13
    Intermittent missile firing operations 0001Z to 2359Z daily monday thru sunday in the naval air warfare…
  20. HYDROPAC 226/05 · Exercises2005-02-04 → 2005-02-04
    Hazardous operations 2300Z to 0400Z commencing daily 08 thru 11 feb within ten miles of 16-04N 146-04E

Sea boundaries: Flanders Marine Institute (2018), IHO Sea Areas v3, marineregions.org (CC BY 4.0). Not for navigation — follow official NAVAREA / coastal broadcasts.