North Pacific Ocean

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

in force
28
last 12 months
295
since 1957
17,253
categories
22

In force now · 28

  1. JTWC-WP2426 · Storms2026-09-16
    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. NHC-EP152026 · Storms2026-09-16
    Tropical Depression Fifteen-E is near 16.900N 120.500W in the Eastern North Pacific on 14 September 2026, with 30-knot winds, 1006 millibars pressure, moving west at 9 knots.
  3. 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.
  4. 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.
  5. 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.
  6. 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.
  7. HYDROPAC 2457/26 · Exercises2026-08-27
    Gunnery exercises occur daily from 2300Z to 0900Z, August 31 to September 29, in the North Pacific.
  8. NAVAREA XI 392/26 · Exercises2026-08-27
    Gunnery exercise daily 2300Z to 0900Z from Aug 31 to Sep 29 in North Pacific, Nanpo Shoto.
  9. 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.
  10. 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.
  11. 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.
  12. 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.
  13. 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.
  14. 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.
  15. 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.
  16. 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.
  17. HYDROPAC 1819/25 · Wrecks2025-07-17
    Depths between 5.4 and 18.8 meters reported at several positions in Marshall Islands, North Pacific.
  18. 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.
  19. 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.
  20. 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.
  21. 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.
  22. NAVAREA XII 208/25 · Nav aids2025-04-06
    Punta Soldado light at 03-48.50N 077-10.80W is discontinued.
  23. 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.
  24. NAVAREA XII 441/24 · Nav aids2024-06-18
    Morro Santo Domingo light at 28-14.37N 114-06.18W is unlit.
  25. 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.
  26. NAVAREA XII 721/22 · Nav aids2022-09-27
    In El Salvador, mooring buoys at 13-35.23N 089-51.10W are unlit.
  27. 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.
  28. 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

Exercises4,66727%
Incidents4,48526%
Quakes2,41614%
Missiles1,75310%
Spills7775%
Nav aids7654%
Towing5323%
Other5133%
Derelicts4773%
Cable ops2291%
Debris1641%
Surveys1481%
Ordnance1161%
Containers1131%
Wrecks370%
Storms350%
Volcanic130%
Restricted60%
Mines40%
Piracy10%
Icebergs10%
Structures10%

Archive · 17,225 cancelled

  1. HYDROPAC 595/03 · Incidents2003-04-04 → 2003-04-04
    168 foot F/V alaska patriot, black hull, 11 persons on board, disabled and adrift in 47-44.8N 167-44.0E at…
  2. NAVAREA XII 91/03 · Missiles2003-04-03 → 2003-04-10
    Intermittent missile firing operations 0001Z to 2359Z daily monday thru sunday in the naval air warfare…
  3. NAVAREA XII 90/03 · Exercises2003-04-03 → 2003-04-10
    Hazardous operations 2000Z to 0230Z commencing daily 08 apr thru 08 may in area bound by 06-46N 130-05W,…
  4. HYDROPAC 576/03 · Other2003-03-30 → 2003-04-06
    Bombing exercises 31 mar thru 05 apr within ten miles of 16-01N 146-04E
  5. NAVAREA XII 86/03 · Missiles2003-03-27 → 2003-04-03
    Intermittent missile firing operations 0001Z to 2359Z daily monday thru sunday in the naval air warfare…
  6. NAVAREA XII 85/03 · Missiles2003-03-27 → 2003-04-27
    Intermittent missile firing operations 0001Z to 2400Z daily monday thru sunday in the pacific missile range…
  7. HYDROPAC 550/03 · Other2003-03-27 → 2003-04-04
    Bombing exercises 1401Z to 1359Z commencing daily 30 mar thru 03 apr in areas: a. within ten miles of 16-01N…
  8. HYDROPAC 545/03 · Incidents2003-03-26 → 2003-05-10
    Distress signal received on 406 mhz in 23-49N 145-40E at 261409Z mar
  9. HYDROPAC 530/03 · Other2003-03-24 → 2003-03-28
    Bombing exercises 2200Z to 1200Z commencing daily 23 thru 27 mar within ten miles of 16-01N 146-04E
  10. HYDROPAC 523/03 · Other2003-03-23 → 2003-03-23
    Bombing exercises 2200Z to 1200Z commencing daily 23 thru 27 mar within ten miles of 16-01N 146-04E
  11. HYDROPAC 512/03 · Other2003-03-22 → 2003-03-23
    Bombing exercises 2200Z to 1330Z commencing daily 21 and 22 mar within ten miles of 16-01N 146-04E
  12. USGS-USP000BT6Q · Quakes2003-03-21 → 2003-03-24
    Earthquake magnitude 5.5 (mwc) in 28.094N 142.506E, depth 31 km at 211843Z mar 03
  13. HYDROPAC 498/03 · Other2003-03-20 → 2003-03-23
    Bombing exercises 2200Z to 1200Z commencing daily 23 thru 27 mar within ten miles of 16-01N 146-04E
  14. NAVAREA XII 77/03 · Missiles2003-03-20 → 2003-03-27
    Intermittent missile firing operations 0001Z to 2359Z daily monday thru sunday in the naval air warfare…
  15. HYDROPAC 486/03 · Other2003-03-19 → 2003-03-20
    Bombing exercises 2200Z to 1200Z commencing daily 24 thru 28 mar within ten miles of 16-01N 146-04E
  16. USGS-USP000BT18 · Quakes2003-03-19 → 2003-03-22
    168 km se of petropavlovsk-kamchatsky, russia
  17. HYDROPAC 485/03 · Exercises2003-03-19 → 2003-03-22
    Hazardous operations 220230Z to 220810Z mar within 120 miles of 16-56N 155-00E
  18. USGS-USP000BSWF · Quakes2003-03-17 → 2003-03-20
    Earthquake magnitude 6.2 (mwc) in 51.295N 177.971E, depth 33 km at 171855Z mar 03
  19. USGS-USP000BSWE · Quakes2003-03-17 → 2003-03-20
    137 km se of petropavlovsk-kamchatsky, russia
  20. USGS-USP000BSVS · Quakes2003-03-17 → 2003-03-20
    Earthquake magnitude 7.1 (mwb) in 51.272N 177.978E, depth 33 km at 171636Z mar 03

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