North Pacific Ocean

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

in force
27
last 12 months
300
since 1957
17,258
categories
22

In force now · 27

  1. JTWC-WP2426 · Storms2026-09-17
    Tropical Depression 24W is in the western North Pacific, forecast at 14.800N 148.800E on 15 September 2026, with a 34-knot wind danger swath.
  2. NAVAREA XI 410/26 · Exercises2026-09-15
    Hazardous operations take place in the North Pacific near the Marianas from 22:00 UTC September 17 to 13:00 UTC September 18 inside a bounded area.
  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

Exercises4,67027%
Incidents4,48526%
Quakes2,41614%
Missiles1,75410%
Spills7775%
Nav aids7654%
Towing5323%
Other5143%
Derelicts4773%
Cable ops2291%
Debris1641%
Surveys1481%
Ordnance1161%
Containers1131%
Wrecks370%
Storms350%
Volcanic130%
Restricted60%
Mines40%
Piracy10%
Icebergs10%
Structures10%

Archive · 17,231 cancelled

  1. HYDROPAC 1789/00 · Incidents2000-12-17 → 2000-12-19
    Distress signal received on 121.5 mhz in 06-14.7N 134-37.6E at 172138Z dec
  2. NAVAREA XII 435/00 · Missiles2000-12-14 → 2000-12-21
    Intermittent missile firing operations take place 0001Z to 2359Z daily monday thru sunday in the naval air…
  3. NAVAREA XII 434/00 · Exercises2000-12-13 → 2000-12-20
    Hazardous operations 2000Z to 0511Z commencing daily 19 dec thru 20 jan in area bound by 07-12N 087-54W,…
  4. NAVAREA XII 432/00 · Exercises2000-12-13 → 2000-12-14
    Hazardous operations 141600Z to 142300Z dec in area bound by 32-54-19N 119-13-31W, 33-08-04N 118-55-32W,…
  5. USGS-USP000A5Y0 · Quakes2000-12-12 → 2000-12-15
    224 km s of punta de burica, panama
  6. HYDROPAC 1762/00 · Containers2000-12-12 → 2000-12-19
    26 containers adrift vicinity 40-23.8N 170-39.6E
  7. HYDROPAC 1757/00 · Incidents2000-12-11 → 2001-01-26
    Distress signal received on 243 mhz in 20-29.9N 165-18.6E at 110715Z dec
  8. NAVAREA XII 431/00 · Exercises2000-12-10 → 2000-12-15
    Hazardous operations 141600Z to 142000Z and 151530Z to 152030Z dec in area bound by 32-54-19N 119-13-31W,…
  9. NAVAREA XII 430/00 · Derelicts2000-12-10 → 2000-12-17
    Derelict 40 foot vessel, orange hull, adrift vicinity 28-14N 146-23W
  10. USGS-USP000A5QS · Quakes2000-12-08 → 2000-12-11
    131 km wsw of mazatlán, mexico
  11. HYDROPAC 1750/00 · Incidents2000-12-08 → 2000-12-09
    Distress signal received on 406 mhz in 05-16.7N 137-36.4E at 072333Z dec
  12. NAVAREA XII 428/00 · Missiles2000-12-07 → 2000-12-14
    Intermittent missile firing operations take place 0001Z to 2359Z daily monday thru sunday in the naval air…
  13. USGS-USP000A5JR · Quakes2000-12-05 → 2000-12-08
    79 km ese of nikolski, alaska
  14. USGS-USP000A5GK · Quakes2000-12-04 → 2000-12-07
    10 km e of hasaki, japan
  15. USGS-USP000A5FV · Quakes2000-12-04 → 2000-12-07
    104 km sw of el palmarcito, mexico
  16. NAVAREA XII 425/00 · Missiles2000-12-01 → 2000-12-07
    Intermittent missile firing operations take place 0001Z to 2359Z daily monday thru sunday in the naval air…
  17. HYDROPAC 1735/00 · Incidents2000-11-30 → 2000-12-01
    Distress signal received on 406 mhz in 07-33.1N 159-29.0E at 300429Z nov
  18. HYDROPAC 1727/00 · Exercises2000-11-27 → 2000-12-02
    Hazardous operations 010300Z to 010430Z and 020230Z to 020400Z dec in area bound by 12-00S 132-50W, 10-00S…
  19. HYDROPAC 1720/00 · Exercises2000-11-26 → 2000-12-02
    Hazardous operations 010320Z to 010506Z dec, alternate 020254Z to 020443Z dec within 105 miles of a…
  20. NAVAREA XII 422/00 · Exercises2000-11-26 → 2000-12-02
    Hazardous operations 010320Z to 010506Z dec, alternate 020254Z to 020443Z dec within 105 miles of a…

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