North Pacific Ocean

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

in force
29
last 12 months
295
since 1957
17,253
categories
22

In force now · 29

  1. JTWC-EP1526 · Storms2026-09-15
    Tropical Depression 15E in the eastern North Pacific is forecast near 17.3N 116.7W on 13 September, with 34-knot winds.
  2. JTWC-WP2426 · Storms2026-09-15
    Tropical depression 24W (twentyfour)
  3. NHC-EP152026 · Storms2026-09-15
    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.
  4. 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.
  5. 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.
  6. 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.
  7. 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.
  8. HYDROPAC 2457/26 · Exercises2026-08-27
    Gunnery exercises occur daily from 2300Z to 0900Z, August 31 to September 29, in the North Pacific.
  9. NAVAREA XI 392/26 · Exercises2026-08-27
    Gunnery exercise daily 2300Z to 0900Z from Aug 31 to Sep 29 in North Pacific, Nanpo Shoto.
  10. 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.
  11. 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.
  12. 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.
  13. 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.
  14. 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.
  15. 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.
  16. 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.
  17. 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.
  18. HYDROPAC 1819/25 · Wrecks2025-07-17
    Depths between 5.4 and 18.8 meters reported at several positions in Marshall Islands, North Pacific.
  19. 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.
  20. 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.
  21. 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.
  22. 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.
  23. NAVAREA XII 208/25 · Nav aids2025-04-06
    Punta Soldado light at 03-48.50N 077-10.80W is discontinued.
  24. 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.
  25. NAVAREA XII 441/24 · Nav aids2024-06-18
    Morro Santo Domingo light at 28-14.37N 114-06.18W is unlit.
  26. 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.
  27. NAVAREA XII 721/22 · Nav aids2022-09-27
    In El Salvador, mooring buoys at 13-35.23N 089-51.10W are unlit.
  28. 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.
  29. 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 · 17,224 cancelled

  1. HYDROPAC 1462/03 · Incidents2003-08-24 → 2003-08-25
    Distress signal received on 121.5 mhz in 13-09.1N 150-48.7E at 241438Z aug
  2. HYDROPAC 1461/03 · Incidents2003-08-24 → 2003-10-15
    Distress signal received on 121.5 mhz in 14-12.2N 151-32.9E at 241438Z aug
  3. HYDROPAC 1456/03 · Incidents2003-08-23 → 2003-10-15
    Distress signal received on 121.5 mhz in 00-15.5N 116-51.3W at 190147Z aug
  4. HYDROPAC 1444/03 · Volcanic2003-08-22 → 2003-08-23
    Discolored water vicinity 24-17.8N 141-59.1E at 212320Z aug
  5. HYDROPAC 1439/03 · Exercises2003-08-22 → 2003-08-28
    Hazardous operations 260900Z to 270600Z aug and 271100Z to 280500Z aug in area bound by 53-16.0N 160-00.0E,…
  6. HYDROPAC 1424/03 · Incidents2003-08-20 → 2003-08-26
    Helicopter, 13 persons on board, ditched in 51-40N 158-00E
  7. NAVAREA XII 218/03 · Missiles2003-08-20 → 2003-08-28
    Intermittent missile firing operations 0001Z to 2359Z daily monday thru sunday in the naval air warfare…
  8. HYDROPAC 1422/03 · Other2003-08-20 → 2003-08-31
    Bombing exercises 2300Z to 0830Z commencing daily 24 thru 31 aug within ten miles of 16-01N 146-04E
  9. NAVAREA XII 215/03 · Ordnance2003-08-16 → 2003-08-17
    Underwater ordnance detonations in progress until 161300Z and 161800Z to 171800Z aug in areas bound by: a.…
  10. NAVAREA XII 214/03 · Ordnance2003-08-15 → 2003-08-16
    Underwater ordnance detonations in progress until 161300Z and 161800Z to 171800Z aug in area bound by 25-50N…
  11. HYDROPAC 1408/03 · Incidents2003-08-15 → 2003-09-13
    Distress signal received on 121.5 mhz in 19-32.6N 166-43.3E at 151456Z aug
  12. HYDROPAC 1405/03 · Incidents2003-08-15 → 2003-09-30
    Distress signal received on 406 mhz in 11-03.5N 165-17.8E at 142201Z aug
  13. NAVAREA XII 213/03 · Missiles2003-08-14 → 2003-08-20
    Intermittent missile firing operations 0001Z to 2359Z daily monday thru sunday in the naval air warfare…
  14. HYDROPAC 1382/03 · Exercises2003-08-11 → 2003-08-16
    Hazardous operations 2300Z to 0300Z commencing daily 14 and 15 aug in area bound by 52-30.0N 159-17.0E,…
  15. NAVAREA XII 212/03 · Exercises2003-08-11 → 2003-08-16
    Hazardous operations 1800Z to 0001Z commencing daily 15 thru 19 aug in areas bound by: a. 34-45N 120-42W,…
  16. USGS-USP000C4M0 · Quakes2003-08-11 → 2003-08-14
    161 km sw of emiliano zapata, mexico
  17. HYDROPAC 1366/03 · Incidents2003-08-08 → 2003-09-23
    Distress signal received on 406 mhz in 39-49-04N 152-54-07E and 41-17-31N 152-26-34E at 080914Z aug
  18. HYDROPAC 1363/03 · Incidents2003-08-07 → 2003-08-08
    Distress signal received on 121.5 mhz in 03-03.9N 155-48.3E at 071122Z aug
  19. HYDROPAC 1362/03 · Incidents2003-08-07 → 2003-08-08
    Distress signal received on 121.5 mhz in 03-51.8N 155-51.2E at 070910Z aug
  20. HYDROPAC 1361/03 · Exercises2003-08-07 → 2003-08-14
    Hazardous operations 2300Z to 0300Z commencing daily 12 and 13 aug in area bound by 52-30.0N 159-17.0E,…

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