North Pacific Ocean

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

in force
28
last 12 months
52
since 1993
9,585
categories
15

In force now · 28

  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 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.
  3. NAVAREA XII 540/26 · Missiles2026-08-10
    Space debris hazard operations occur daily from August 13 to 26 in two North Pacific areas.
  4. 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.
  5. 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.
  6. 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.
  7. 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.
  8. 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.
  9. 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.
  10. NAVAREA XII 510/26 · Exercises2026-07-23
    Hazardous operations are underway off the coast of California from August 1 to September 1.
  11. NAVAREA XII 511/26 · Exercises2026-07-23
    Hazardous operations are occurring from August 1 to September 1 in the North Pacific off California.
  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 · 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.
  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. 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.
  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 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

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

Exercises4,62448%
Missiles1,74618%
Other8259%
Nav aids7558%
Towing5326%
Derelicts4775%
Cable ops2252%
Surveys1502%
Containers1131%
Debris811%
Wrecks380%
Volcanic130%
Mines40%
Piracy10%
Icebergs10%

Archive · 9,557 cancelled

  1. HYDROPAC 1548/20 · Other2020-05-24 → 2020-06-12
    Red and green flares sighted in vicinity 42-46N 166-16E
  2. HYDROPAC 1519/20 · Exercises2020-05-22 → 2020-05-23
    Hazardous operations 230600Z to 231200Z may in areas within three miles of: a. 13-26N 145-08E
  3. HYDROPAC 1518/20 · Exercises2020-05-22 → 2020-05-24
    Hazardous operations 222100Z to 240100Z may in area within 15 miles of 12-06N 145-30E
  4. HYDROPAC 1516/20 · Cable ops2020-05-22 → 2020-06-05
    Cable operations in progress until 05 jun by cableship ile de brehat in vicinity of trackline joining…
  5. NAVAREA XII 218/20 · Other2020-05-21 → 2020-05-27
    Underwater ordnance detonation 261700Z to 270300Z may in area within one mile of 21-17-29N 157-59-13W
  6. HYDROPAC 1507/20 · Exercises2020-05-21 → 2020-05-22
    Hazardous operations 220600Z to 221200Z may in areas within three miles of: a. 13-26N 145-08E
  7. HYDROPAC 1491/20 · Exercises2020-05-20 → 2020-05-21
    Hazardous operations 210600Z to 211200Z may in areas within three miles of: a. 13-26N 145-08E
  8. NAVAREA XII 217/20 · Missiles2020-05-20 → 2020-05-25
    Hazardous operations, rocket launching 231700Z to 232100Z may, alternate 241700Z to 242100Z may and 251700Z…
  9. HYDROPAC 1485/20 · Cable ops2020-05-19 → 2020-05-29
    Cable operations 22 may thru 06 jun in area within 11 miles of 47-19.5N 166-17.3E
  10. HYDROPAC 1483/20 · Exercises2020-05-19 → 2020-05-20
    Hazardous operations 200600Z to 201200Z may in areas within three miles of: a. 13-26N 145-08E
  11. NAVAREA XII 214/20 · Nav aids2020-05-17 → 2020-05-19
    NAVTEX station cambria (q) 35-31.1N 121-03.6W unreliable
  12. HYDROPAC 1458/20 · Missiles2020-05-16 → 2020-05-20
    Hazardous operations, rocket launching 201706Z to 201831Z may in areas bound by: a. 29-01N 133-48E, 29-24N…
  13. NAVAREA XII 210/20 · Exercises2020-05-15 → 2020-05-23
    Hazardous operations 191500Z to 200100Z may, alternate 1500Z to 0100Z commencing daily 20 thru 22 may in…
  14. HYDROPAC 1440/20 · Exercises2020-05-15 → 2020-05-16
    Hazardous operations 160400Z to 161200Z may in areas within three miles of: a. 13-26N 145-08E
  15. HYDROPAC 1429/20 · Exercises2020-05-14 → 2020-05-15
    Hazardous operations 150400Z to 151200Z may in areas within three miles of: a. 13-26N 145-08E
  16. NAVAREA XII 208/20 · Exercises2020-05-13 → 2020-05-19
    Hazardous operations 181900Z to 182359Z may in area bound by 33-56N 119-14W, 33-46N 119-08W, 33-24N 120-06W,…
  17. NAVAREA XII 207/20 · Nav aids2020-05-13 → 2020-05-14
    NAVTEX station honolulu (o) 21-26.1N 158-08.7W off air
  18. HYDROPAC 1424/20 · Exercises2020-05-13 → 2020-05-14
    Hazardous operations 140400Z to 141200Z may in areas within three miles of: a. 13-26N 145-08E
  19. NAVAREA XII 206/20 · Exercises2020-05-12 → 2020-05-15
    Hazardous operations 151800Z to 152130Z may in area within 13 miles of 34-16N 121-16W
  20. HYDROPAC 1416/20 · Missiles2020-05-12 → 2020-05-23
    Missile and gunnery operations 2200Z to 1000Z commencing daily 17 thru 22 may in area bound by 52-20-00N…

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