North Pacific Ocean

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

in force
35
last 12 months
23
since 1993
9,508
categories
15

In force now · 35

  1. 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.
  2. 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.
  3. NAVAREA XI 369/26 · Missiles2026-08-12
    Missile firing in North Pacific near Hokkaido, daily from August 16 to 22, from 1400Z to 1000Z, in a defined area.
  4. 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.
  5. 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.
  6. NAVAREA XII 540/26 · Missiles2026-08-10
    Space debris hazard operations occur daily from August 13 to 26 in two North Pacific areas.
  7. 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.
  8. 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.
  9. 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.
  10. 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.
  11. 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.
  12. 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.
  13. 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.
  14. 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.
  15. 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.
  16. NAVAREA XII 510/26 · Exercises2026-07-23
    Hazardous operations are underway off the coast of California from August 1 to September 1.
  17. NAVAREA XII 511/26 · Exercises2026-07-23
    Hazardous operations are occurring from August 1 to September 1 in the North Pacific off California.
  18. 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.
  19. 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.
  20. 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.
  21. 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.
  22. 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.
  23. 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.
  24. HYDROPAC 1819/25 · Wrecks2025-07-17
    Depths between 5.4 and 18.8 meters reported at several positions in Marshall Islands, North Pacific.
  25. 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.
  26. 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.
  27. 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.
  28. 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.
  29. NAVAREA XII 208/25 · Nav aids2025-04-06
    Punta Soldado light at 03-48.50N 077-10.80W is discontinued.
  30. 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.
  31. NAVAREA XII 441/24 · Nav aids2024-06-18
    Morro Santo Domingo light at 28-14.37N 114-06.18W is unlit.
  32. 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.
  33. NAVAREA XII 721/22 · Nav aids2022-09-27
    In El Salvador, mooring buoys at 13-35.23N 089-51.10W are unlit.
  34. 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.
  35. 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

Exercises4,58348%
Missiles1,73318%
Other8229%
Nav aids7508%
Towing5316%
Derelicts4745%
Cable ops2172%
Surveys1492%
Containers1131%
Debris801%
Wrecks370%
Volcanic130%
Mines40%
Piracy10%
Icebergs10%

Archive · 9,473 cancelled

  1. NAVAREA XII 329/23 · Exercises2023-06-05 → 2023-06-10
    Hazardous operations 081500Z to 082300Z jun, alternate 091500Z to 092300Z jun in area bound by 33-25.21N…
  2. HYDROPAC 1881/23 · Exercises2023-06-05 → 2023-06-08
    Hazardous operations 2300Z to 1355Z daily 05 thru 07 jun in areas within three miles of: a. 13-26.00N…
  3. HYDROPAC 1877/23 · Exercises2023-06-05 → 2023-06-05
    Hazardous operations 2300Z to 1355Z daily 06 thru 08 jun in areas within three miles of: a. 13-26.00N…
  4. HYDROPAC 1849/23 · Exercises2023-06-02 → 2023-06-09
    Gunnery exercises 062300Z to 070800Z jun, alternate 2300Z to 0800Z daily 07 and 08 jun in area within 25…
  5. NAVAREA XII 326/23 · Exercises2023-06-02 → 2023-06-05
    Hazardous operations 071500Z to 072300Z jun, alternate 081500Z to 082300Z jun in area bound by 33-25.21N…
  6. NAVAREA XII 325/23 · Nav aids2023-06-01 → 2023-06-09
    NAVTEX station honolulu (o) 21-26.10N 158-08.65W unreliable
  7. HYDROPAC 1815/23 · Missiles2023-05-31 → 2023-06-20
    Missile and gunnery 2200Z to 1000Z daily 04 thru 19 jun in areas bound by: a. 44-50.00N 149-20.00E,…
  8. NAVAREA XII 322/23 · Exercises2023-05-30 → 2023-06-02
    Hazardous operations 311500Z may to 010200Z jun, alternate 1500Z to 0200Z daily 01 thru 03 jun in area bound…
  9. NAVAREA XII 321/23 · Nav aids2023-05-27 → 2023-06-10
    Lights unlit: a. punta coll 03-00.20N 078-10.10W
  10. NAVAREA XII 320/23 · Exercises2023-05-27 → 2023-07-01
    Hazardous operations 010800Z jun to 010800Z jul in area bound by 32-55.00N 118-25.00W, 32-55.00N 118-15.00W,…
  11. NAVAREA XII 319/23 · Exercises2023-05-27 → 2023-07-01
    Hazardous operations 010800Z jun to 010800Z jul in area bounded by 32-33.00N 118-25.00W, 32-35.00N…
  12. NAVAREA XII 318/23 · Exercises2023-05-27 → 2023-07-01
    Hazardous operations 010800Z jun to 010800Z jul in area bound by 32-52.70N 119-11.97W, 33-08.07N 118-52.08W,…
  13. HYDROPAC 1762/23 · Exercises2023-05-27 → 2023-06-30
    Gunnery exercises 2300Z to 0900Z daily 31 may thru 29 jun in area bound by 28-15.15N 146-29.47E, 25-25.16N…
  14. NAVAREA XII 316/23 · Exercises2023-05-24 → 2023-05-31
    Hazardous operations 251500Z to 251900Z and 301900Z to 302300Z may in area bound by 33-25.22N 120-32.35W,…
  15. NAVAREA XII 315/23 · Cable ops2023-05-24 → 2023-06-04
    Cable operations 27 may thru 03 jun by cableship cable innovator in vicinity of trackline joining 29-34.34N…
  16. HYDROPAC 1721/23 · Surveys2023-05-23 → 2023-06-10
    Underwater operations 24 may thru 09 jun by M/V yokosuka with submersible shinkai 6500 in areas bound by: a.…
  17. HYDROPAC 1716/23 · Other2023-05-23 → 2023-05-26
    Buoy reported adrift in vicinity 48-26.00N 176-17.20E at 220400Z may
  18. HYDROPAC 1714/23 · Exercises2023-05-23 → 2023-05-28
    Hazardous operations 271400Z to 282200Z may in area bound by 13-10.00N 144-30.00E, 13-10.00N 144-42.00E,…
  19. HYDROPAC 1713/23 · Derelicts2023-05-23 → 2023-05-26
    M/V kota lihat disabled and adrift in vicinity 38-44.00N 137-05.00W
  20. NAVAREA XII 312/23 · Towing2023-05-22 → 2023-05-23
    The ocean cleanup system operations in progress by M/V maersk trader and M/V maersk tender towing 800 meter…

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