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. NAVAREA XII 74/20 · Exercises2020-02-25 → 2020-02-26
    Hazardous operations 281930Z to 282330Z feb in area within 12 miles of 34-18N 121-17W
  2. NAVAREA XII 73/20 · Exercises2020-02-25 → 2020-02-26
    Hazardous operations 271930Z to 272330Z feb in area within eight miles of 34-20-18N 121-18-48W
  3. NAVAREA XII 70/20 · Exercises2020-02-21 → 2020-02-27
    Hazardous operations 0600Z to 1000Z daily 26 and 27 feb in area bound by 33-56N 119-14W, 33-46N 119-08W,…
  4. NAVAREA XII 69/20 · Exercises2020-02-20 → 2020-02-26
    Hazardous operations 251930Z to 252330Z feb in area within eight miles of 34-20-18N 121-18-48W
  5. NAVAREA XII 67/20 · Missiles2020-02-20 → 2020-03-04
    Hazardous operations, rocket launching 252030Z to 252359Z feb, alternate 2030Z to 2359Z daily 26 feb thru 03…
  6. NAVAREA XII 64/20 · Exercises2020-02-18 → 2020-02-21
    Hazardous operations 210500Z to 210800Z feb in area within 13 miles of 33-10N 120-19W
  7. NAVAREA XII 63/20 · Exercises2020-02-18 → 2020-02-20
    Hazardous operations 191930Z to 192330Z feb in area within 10 miles of 33-10.00N 120-19.42W
  8. NAVAREA XII 62/20 · Exercises2020-02-18 → 2020-02-18
    Hazardous operations 191930Z to 192330Z feb in area within 10 miles of 33-13.6N 120-26.3W
  9. NAVAREA XII 61/20 · Exercises2020-02-18 → 2020-02-18
    Hazardous operations 191930Z to 192330Z feb in area within 10 miles of 33-20N 120-36W
  10. HYDROPAC 485/20 · Exercises2020-02-11 → 2020-03-10
    Hazardous operations in progress until 100900Z mar in area within one mile of 07-26-48N 151-50-23E
  11. NAVAREA XII 55/20 · Other2020-02-08 → 2020-02-14
    Underwater ordnance detonation 101600Z to 142355Z feb in area within one mile of 32-32-24N 117-12-53W
  12. NAVAREA XII 54/20 · Other2020-02-08 → 2020-02-11
    Underwater ordnance detonation 101600Z to 102355Z feb in area within one mile of 32-35.521N 117-10.520W
  13. NAVAREA XII 50/20 · Exercises2020-02-06 → 2020-02-07
    Hazardous operations 062100Z to 070001Z feb in area within 40 miles of 34-35N 121-53W
  14. HYDROPAC 396/20 · Exercises2020-02-06 → 2020-02-16
    Hazardous operations 101500Z to 162300Z feb in area bound by 16-36N 163-45E, 18-15N 167-15E, 17-15N 167-48E,…
  15. NAVAREA XII 49/20 · Exercises2020-02-06 → 2020-02-16
    Hazardous operations 101500Z to 162300Z feb in areas bound by: a. 32-24N 119-54W, 32-30N 117-33W, 32-00N…
  16. NAVAREA XII 47/20 · Missiles2020-02-05 → 2020-02-05
    Hazardous operations, rocket launching: a. 0738Z to 1506Z daily 05 thru 08 feb in area bound by 34-57N…
  17. HYDROPAC 387/20 · Missiles2020-02-05 → 2020-02-15
    Gunnery and missile operations 2200Z to 1000Z commencing daily 09 thru 14 feb in area bound by 52-20-00N…
  18. NAVAREA XII 46/20 · Other2020-02-04 → 2020-02-06
    Underwater ordnance detonation 051700Z to 060200Z feb in area within one mile of 21-17-29N 157-59-13W
  19. NAVAREA XII 45/20 · Exercises2020-02-04 → 2020-02-07
    Hazardous operations 062015Z to 070015Z feb in area bound by 32-55N 120-03W, 33-04N 119-52W, 32-52N 119-35W,…
  20. HYDROPAC 377/20 · Exercises2020-02-04 → 2020-02-05
    Hazardous operations 051100Z to 051355Z feb in areas within three miles of: a. 13-26N 145-08E

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