North Pacific Ocean

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

in force
37
last 12 months
50
since 1993
9,583
categories
15

In force now · 37

  1. NAVAREA XI 380/26 · Exercises2026-08-22
    Hazardous operations are taking place in the Marianas area from 27 August 0200Z to 0600Z, with cancellation at 0700Z.
  2. NAVAREA XI 379/26 · Missiles2026-08-21
    Space debris operations are hazardous in the South China Sea and western North Pacific from 23 Aug 23:00 to 24 Aug 05:00 UTC, then cancelled at 06:00 UTC.
  3. NAVAREA XI 372/26 · Missiles2026-08-19
    Rocket firing is scheduled daily on August 23 and 29 from 2200Z to 1300Z within 25 miles of 31-14-14N 144-26-48E in the North Pacific near Nanpo Shoto.
  4. NAVAREA XII 548/26 · Exercises2026-08-13
    Hazardous operations occur off California in the North Pacific from August 18-19 and 20-21, with the notice valid until August 26.
  5. HYDROPAC 2320/26 · Missiles2026-08-12
    The warning for missile operations near Kuril Islands, North Pacific, covers 1400Z to 1000Z daily 16-22 August and is cancelled at 231100Z August.
  6. NAVAREA XII 552/26 · Exercises2026-08-12
    Hazardous operations are underway August 19 to 20 within two miles of 32-35.87N 117-10.87W.
  7. HYDROPAC 2296/26 · Nav aids2026-08-10
    The US Coast Guard remote communication facility near Guam at 13-29N 144-50E has unreliable high-frequency radio capabilities.
  8. NAVAREA XII 540/26 · Missiles2026-08-10
    Space debris hazard operations occur daily from August 13 to 26 in two North Pacific areas.
  9. HYDROPAC 2282/26 · Cable ops2026-08-10
    Cable operations by cableship Aniek are in progress until further notice along a trackline in the North Pacific near coordinates 45-07.40N 163-31.90E to 38-48.00N 147-55.50E. Wide berth requested.
  10. NAVAREA XI 364/26 · Cable ops2026-08-10
    Submarine cable recovery works by motor vessel Aniek in northwestern North Pacific from 092200Z Aug until further notice near coordinates 45-07N 163-32E to 38-48N 147-56E.
  11. NAVAREA XII 551/26 · Missiles2026-08-08
    Rocket launching hazardous operations in North Pacific off California from August 19 to 25, with daily alternate windows, in two areas near 34-29N 120-29W and 29-13N 121-31W.
  12. NAVAREA XII 539/26 · Missiles2026-08-04
    Hazardous rocket launching operations take place off California in multiple areas from August 15 to 22, with alternate dates.
  13. NAVAREA XII 523/26 · Cable ops2026-08-01
    Cable operations are underway by M/V Grace in the North Pacific along a trackline; a two-mile berth is requested.
  14. HYDROPAC 2152/26 · Exercises2026-07-27
    Gunnery exercises daily 2300-0900 Zulu, July 31 to August 30, North Pacific area bounded by 28-15N 146-30E, 25-25N 147-38E, 25-00N 145-36E, 27-55N 145-58E.
  15. NAVAREA XI 342/26 · Exercises2026-07-27
    Gunnery exercise in North Pacific near Nanpo Shoto daily from 31 July to 30 August, 2300Z to 0900Z, in a bounded area.
  16. HYDROPAC 2124/26 · Surveys2026-07-24
    Submersible survey operations are in areas near 22-40N 154-30E and 22-30N 153-45E in the North Pacific from July 25 to August 15; wide berth requested.
  17. NAVAREA XII 512/26 · Exercises2026-07-23
    Hazardous operations are scheduled off the California coast in the North Pacific from August 1 to September 1.
  18. NAVAREA XII 510/26 · Exercises2026-07-23
    Hazardous operations are underway off the coast of California from August 1 to September 1.
  19. NAVAREA XII 511/26 · Exercises2026-07-23
    Hazardous operations are occurring from August 1 to September 1 in the North Pacific off California.
  20. HYDROPAC 2100/26 · Cable ops2026-07-22
    Cable operations are underway until further notice by cableship Subaru near a trackline joining 36-44.60N 140-45.20E to 35-04.90N 156-51.80E off Japan; wide berth requested.
  21. 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.
  22. 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.
  23. 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.
  24. 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.
  25. NAVAREA XII 678/25 · Other2025-10-30
    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.
  26. HYDROPAC 1819/25 · Wrecks2025-07-17
    Depths between 5.4 and 18.8 meters reported at several positions in Marshall Islands, North Pacific.
  27. 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.
  28. 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.
  29. 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.
  30. 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.
  31. NAVAREA XII 208/25 · Nav aids2025-04-06
    Punta Soldado light at 03-48.50N 077-10.80W is discontinued.
  32. 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.
  33. NAVAREA XII 441/24 · Nav aids2024-06-18
    Morro Santo Domingo light at 28-14.37N 114-06.18W is unlit.
  34. 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.
  35. NAVAREA XII 721/22 · Nav aids2022-09-27
    In El Salvador, mooring buoys at 13-35.23N 089-51.10W are unlit.
  36. 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.
  37. 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

93
96
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

Exercises4,62348%
Missiles1,74518%
Other8259%
Nav aids7558%
Towing5326%
Derelicts4775%
Cable ops2252%
Surveys1502%
Containers1131%
Debris811%
Wrecks380%
Volcanic130%
Mines40%
Piracy10%
Icebergs10%

Archive · 9,546 cancelled

  1. NAVAREA XII 414/21 · Mines2021-08-13 → 2021-08-20
    Mining operations 171900Z to 172200Z and 192030Z to 192330Z aug in areas bound by: a. 33-00-36N 118-36-12W,…
  2. NAVAREA XII 412/21 · Towing2021-08-13 → 2021-08-15
    The ocean cleanup system operations in progress by M/V maersk trader and M/V maersk tender towing 800 meter…
  3. NAVAREA XII 411/21 · Exercises2021-08-13 → 2021-08-14
    Hazardous operations 161630Z to 162230Z and 171630Z to 172230Z aug, alternate 1630Z to 2230Z daily 18 thru…
  4. NAVAREA XII 410/21 · Exercises2021-08-13 → 2021-08-19
    Hazardous operations 161630Z to 162230Z and 171630Z to 172230Z aug, alternate 1630Z to 2230Z daily 18 thru…
  5. NAVAREA XII 409/21 · Exercises2021-08-13 → 2021-08-19
    Hazardous operations 161630Z to 162230Z and 171630Z to 172230Z aug, alternate 1630Z to 2230Z daily 18 thru…
  6. NAVAREA XII 407/21 · Mines2021-08-12 → 2021-08-13
    Mining operations 171900Z to 172200Z and 191900Z to 192200Z aug in areas bound by: a. 33-00-36N 118-36-12W,…
  7. NAVAREA XII 406/21 · Exercises2021-08-12 → 2021-08-16
    Hazardous operations 162000Z to 170200Z aug, alternate 172000Z to 180200Z and 182000Z to 190200Z aug in…
  8. NAVAREA XII 405/21 · Exercises2021-08-12 → 2021-08-17
    Hazardous operations 151600Z to 160500Z aug, alternate 161600Z to 170500Z aug in area bound by 22-00N…
  9. NAVAREA XII 403/21 · Exercises2021-08-11 → 2021-08-13
    Hazardous operations 121600Z to 130100Z aug in area bound by 32-43-29N 119-11-52W, 32-37-11N 119-18-20W,…
  10. NAVAREA XII 402/21 · Cable ops2021-08-10 → 2021-08-16
    Underwater operations in progress until 15 aug by cableship it integrity and M/V thompson in vicinity…
  11. NAVAREA XII 401/21 · Towing2021-08-10 → 2021-08-13
    The ocean cleanup system operations in progress by M/V maersk trader and M/V maersk tender towing 800 meter…
  12. NAVAREA XII 400/21 · Exercises2021-08-10 → 2021-08-19
    Hazardous operations 150700Z to 151300Z and 191600Z to 192359Z aug in area bound by 33-53-42N 119-19-05W,…
  13. NAVAREA XII 399/21 · Nav aids2021-08-10 → 2021-08-11
    Uscg remote communication facility point reyes (c) 37-55.5N 122-43.9W hf transmit services unreliable
  14. NAVAREA XII 397/21 · Cable ops2021-08-09 → 2021-08-19
    Cable operations 12 aug until further notice by cableship rene descartes along trackline joining 46-57.9N…
  15. NAVAREA XII 396/21 · Towing2021-08-09 → 2021-08-10
    The ocean cleanup system operations in progress by M/V maersk trader and M/V maersk tender towing 800 meter…
  16. HYDROPAC 2275/21 · Exercises2021-08-08 → 2021-08-14
    Hazardous operations 092300Z to 101355Z, 101400Z to 111359Z, 111400Z to 121359Z, 121400Z to 131359Z and…
  17. NAVAREA XII 394/21 · Exercises2021-08-08 → 2021-08-13
    Hazardous operations 131600Z to 140100Z aug, alternate 141600Z to 150100Z aug in area bound by 33-41-41N…
  18. NAVAREA XII 391/21 · Exercises2021-08-07 → 2021-08-13
    Hazardous operations 121900Z to 130100Z aug in area bound by 32-28-04N 119-43-53W, 32-21-25N 119-50-17W,…
  19. NAVAREA XII 390/21 · Exercises2021-08-07 → 2021-08-11
    Hazardous operations 121600Z to 121900Z aug in area bound by 32-43-29N 119-11-52W, 32-37-11N 119-18-20W,…
  20. NAVAREA XII 389/21 · Wrecks2021-08-07 → 2021-08-13
    Obstructions reported in: a. 33-32-04N 119-27-03W

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