North Pacific Ocean

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

in force
39
last 12 months
70
since 1993
9,603
categories
15

In force now · 39

  1. NAVAREA XII 589/26 · Exercises2026-08-27
    Hazardous operations are scheduled off California September 1 1800 UTC to September 2 0100 UTC, with alternate September 3 to 4, in a defined area.
  2. HYDROPAC 2458/26 · Nav aids2026-08-27
    United States Coast Guard remote communication facility in Guam at 13-29N 144-50E has high-frequency NAVTEX and SITOR services off air.
  3. NAVAREA XII 588/26 · Exercises2026-08-27
    Hazardous operations are underway off California on August 31 from 13:00 to 21:00 Coordinated Universal Time in a bounded area.
  4. HYDROPAC 2457/26 · Exercises2026-08-27
    Gunnery exercises occur daily from 2300Z to 0900Z, August 31 to September 29, in the North Pacific.
  5. NAVAREA XI 392/26 · Exercises2026-08-27
    Gunnery exercise daily 2300Z to 0900Z from Aug 31 to Sep 29 in North Pacific, Nanpo Shoto.
  6. HYDROPAC 2460/26 · Exercises2026-08-27
    Naval hazardous operations daily 01 through 05 September, 1400 to 1359 UTC, in areas near Guam, cancelled at 061459 UTC September 26.
  7. HYDROPAC 2442/26 · Missiles2026-08-26
    Rocket launching hazardous operations daily 2100Z-1300Z 30 Aug-2 Sep, 5-6 Sep, alternate 7-9 Sep, within 25 miles of 31-14.21N 144-26.80E. Cancel message 101400Z Sep 26.
  8. NAVAREA XI 391/26 · Missiles2026-08-26
    Rocket firing occurs daily from 30 August to 2, 5, and 6 September and alternate 7-9 September within 25 miles of 31-14-14N 144-26-48E.
  9. HYDROPAC 2452/26 · Exercises2026-08-26
    Hazardous operations occur daily on September 1 and 2, from 0100Z to 0800Z, in an area near Guam.
  10. NAVAREA XII 580/26 · Cable ops2026-08-24
    Cable operations are underway by cable ship Ile de Sein along a trackline off California in the North Pacific until further notice; wide berth requested.
  11. NAVAREA XII 578/26 · Exercises2026-08-24
    Hazardous operations take place in three North Pacific areas from 0600 to 1515 UTC on 28 August, with alternate times on 29 August.
  12. NAVAREA XII 587/26 · Missiles2026-08-21
    Rocket launching hazardous operations are underway off California in the North Pacific from September 1-7, with alternate times, cancelling at 1217Z September 7.
  13. 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.
  14. 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.
  15. 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.
  16. 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.
  17. 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.
  18. 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.
  19. 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.
  20. 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.
  21. NAVAREA XII 510/26 · Exercises2026-07-23
    Hazardous operations are underway off the coast of California from August 1 to September 1.
  22. NAVAREA XII 511/26 · Exercises2026-07-23
    Hazardous operations are occurring from August 1 to September 1 in the North Pacific off California.
  23. 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.
  24. 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.
  25. 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.
  26. 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.
  27. 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.
  28. HYDROPAC 1819/25 · Wrecks2025-07-17
    Depths between 5.4 and 18.8 meters reported at several positions in Marshall Islands, North Pacific.
  29. 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.
  30. 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.
  31. 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.
  32. 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.
  33. NAVAREA XII 208/25 · Nav aids2025-04-06
    Punta Soldado light at 03-48.50N 077-10.80W is discontinued.
  34. 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.
  35. NAVAREA XII 441/24 · Nav aids2024-06-18
    Morro Santo Domingo light at 28-14.37N 114-06.18W is unlit.
  36. 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.
  37. NAVAREA XII 721/22 · Nav aids2022-09-27
    In El Salvador, mooring buoys at 13-35.23N 089-51.10W are unlit.
  38. 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.
  39. 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

Exercises4,63648%
Missiles1,74918%
Other8259%
Nav aids7568%
Towing5326%
Derelicts4775%
Cable ops2272%
Surveys1502%
Containers1131%
Debris811%
Wrecks380%
Volcanic130%
Mines40%
Piracy10%
Icebergs10%

Archive · 9,564 cancelled

  1. NAVAREA XII 225/14 · Derelicts2014-07-08 → 2014-07-11
    Derelict 18 foot vessel, black and silver hull, adrift vicinity 56-59.148N 135-52.639W at 080800Z jul
  2. HYDROPAC 1996/14 · Missiles2014-07-07 → 2014-07-08
    Hazardous operations 2100Z to 0900Z commencing daily 11 and 12 jul in area bound by 20-05N 146-33E, 20-05N…
  3. HYDROPAC 1989/14 · Exercises2014-07-07 → 2014-07-09
    Hazardous operations
  4. HYDROPAC 1981/14 · Missiles2014-07-06 → 2014-07-13
    Hazardous operations 2100Z to 0900Z commencing daily 11 and 12 jul in area bound by 20-05N 146-33E, 20-05N…
  5. NAVAREA XII 220/14 · Exercises2014-07-05 → 2014-08-02
    Hazardous operations
  6. NAVAREA XII 214/14 · Missiles2014-07-01 → 2014-07-02
    Hazardous operations 0656Z to 1057Z daily 02 thru 06 jul in areas bound by: a. 34-01N 120-43W, 34-05N…
  7. HYDROPAC 1903/14 · Exercises2014-06-30 → 2014-07-03
    Hazardous operations
  8. HYDROPAC 1869/14 · Exercises2014-06-26 → 2014-07-31
    Gunnery exercises 2300Z to 0900Z commencing daily 30 jun thru 30 jul in area bound by 27-55-15N 144-57-48E,…
  9. NAVAREA XII 209/14 · Missiles2014-06-26 → 2014-07-01
    Hazardous operations 0926Z to 1057Z daily 01 thru 06 jul in areas bound by: a. 34-01N 120-43W, 34-05N…
  10. HYDROPAC 1844/14 · Exercises2014-06-25 → 2014-06-26
    Hazardous operations
  11. HYDROPAC 1830/14 · Exercises2014-06-24 → 2014-06-27
    Hazardous operations
  12. NAVAREA XII 204/14 · Missiles2014-06-24 → 2014-06-29
    Hazardous operations 281730Z to 290200Z jun, alternate 1730Z to 0200Z commencing daily 29 jun thru 03 jul in…
  13. HYDROPAC 1817/14 · Exercises2014-06-23 → 2014-06-24
    Hazardous operations
  14. NAVAREA XII 201/14 · Missiles2014-06-22 → 2014-06-27
    Hazardous operations 270130Z to 270700Z jun, alternate 280130Z to 280700Z jun in area bound by 25-00N…
  15. NAVAREA XII 200/14 · Missiles2014-06-22 → 2014-06-27
    Hazardous operations 252330Z to 261200Z and 270200Z to 271200Z jun in area bound by 34-05-24N 120-30-04W,…
  16. HYDROPAC 1803/14 · Exercises2014-06-22 → 2014-06-23
    Hazardous operations
  17. NAVAREA XII 196/14 · Nav aids2014-06-19 → 2014-06-24
    Cancel this msg 242100Z jun 14
  18. NAVAREA XII 194/14 · Exercises2014-06-18 → 2014-06-24
    Gunnery exercises: a. 221900Z to 222100Z jun within 30 miles of 26-40N 143-40W
  19. HYDROPAC 1752/14 · Exercises2014-06-18 → 2014-06-19
    Hazardous operations
  20. NAVAREA XII 191/14 · Missiles2014-06-17 → 2014-06-22
    Hazardous operations 1300Z to 2107Z daily 22 thru 24 jun in areas: a. bound by 34-55N 123-58W, 34-58N…

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