North Pacific Ocean

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

in force
27
last 12 months
55
since 1993
9,588
categories
15

In force now · 27

  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. 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.
  7. 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.
  8. 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.
  9. NAVAREA XII 510/26 · Exercises2026-07-23
    Hazardous operations are underway off the coast of California from August 1 to September 1.
  10. NAVAREA XII 511/26 · Exercises2026-07-23
    Hazardous operations are occurring from August 1 to September 1 in the North Pacific off California.
  11. 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.
  12. 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.
  13. 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.
  14. 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.
  15. 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.
  16. HYDROPAC 1819/25 · Wrecks2025-07-17
    Depths between 5.4 and 18.8 meters reported at several positions in Marshall Islands, North Pacific.
  17. 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.
  18. 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.
  19. 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.
  20. 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.
  21. NAVAREA XII 208/25 · Nav aids2025-04-06
    Punta Soldado light at 03-48.50N 077-10.80W is discontinued.
  22. 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.
  23. NAVAREA XII 441/24 · Nav aids2024-06-18
    Morro Santo Domingo light at 28-14.37N 114-06.18W is unlit.
  24. 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.
  25. NAVAREA XII 721/22 · Nav aids2022-09-27
    In El Salvador, mooring buoys at 13-35.23N 089-51.10W are unlit.
  26. 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.
  27. 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

Exercises4,62648%
Missiles1,74618%
Other8259%
Nav aids7558%
Towing5326%
Derelicts4775%
Cable ops2262%
Surveys1502%
Containers1131%
Debris811%
Wrecks380%
Volcanic130%
Mines40%
Piracy10%
Icebergs10%

Archive · 9,561 cancelled

  1. NAVAREA XII 99/19 · Exercises2019-03-14 → 2019-03-16
    Hazardous operations 191600Z to 192100Z mar, alternate 201600Z to 202100Z mar in area bound by 33-06N…
  2. HYDROPAC 830/19 · Exercises2019-03-12 → 2019-03-15
    Hazardous operations 122200Z to 151200Z mar in areas: a. within three miles of 13-26N 145-08E
  3. HYDROPAC 829/19 · Exercises2019-03-12 → 2019-03-21
    Hazardous operations 121401Z to 211355Z mar in area bound by 13-10N 144-30E, 13-10N 144-42E, 12-50N 144-45E,…
  4. NAVAREA XII 98/19 · Nav aids2019-03-11 → 2019-05-01
    Cape mendocino dgps station 40-26.5N 124-23.8W inoperative
  5. HYDROPAC 823/19 · Missiles2019-03-11 → 2019-03-17
    Hazardous operations, space debris 161107Z to 161316Z mar, alternate 171105Z to 171316Z mar in area bound by…
  6. HYDROPAC 817/19 · Missiles2019-03-11 → 2019-03-23
    Missile and gunnery operations 2000Z to 0900Z commencing daily 12 thru 15 and 17 thru 22 mar in area bound…
  7. HYDROPAC 815/19 · Exercises2019-03-11 → 2019-03-12
    Hazardous operations 120600Z to 121000Z mar in areas: a. within three miles of 13-26N 145-08E
  8. HYDROPAC 814/19 · Exercises2019-03-11 → 2019-03-12
    Hazardous operations 112200Z to 121200Z mar in areas: a. within three miles of 13-26N 145-08E
  9. HYDROPAC 813/19 · Exercises2019-03-11 → 2019-03-12
    Hazardous operations 111401Z to 121355Z mar in area bound by 13-10N 144-30E, 13-10N 144-42E, 12-50N 144-45E,…
  10. HYDROPAC 805/19 · Missiles2019-03-10 → 2019-03-11
    Hazardous operations, space debris 151108Z to 151315Z mar, alternate 161107Z to 161316Z mar in area bound by…
  11. HYDROPAC 797/19 · Missiles2019-03-09 → 2019-03-10
    Hazardous operations, space debris 141109Z to 141315Z mar, alternate 151108Z to 151315Z mar in area bound by…
  12. HYDROPAC 761/19 · Exercises2019-03-07 → 2019-03-10
    Hazardous operations 071401Z to 101355Z mar in area bound by 13-10N 144-30E, 13-10N 144-42E, 12-50N 144-45E,…
  13. HYDROPAC 747/19 · Exercises2019-03-06 → 2019-03-07
    Hazardous operations 070001Z to 071355Z mar in areas: a. within three miles of 13-26N 145-08E
  14. NAVAREA XII 91/19 · Exercises2019-03-05 → 2019-03-09
    Hazardous operations 071500Z to 072300Z mar, alternate 081500Z to 082300Z and 091500Z to 092300Z mar in area…
  15. NAVAREA XII 88/19 · Exercises2019-02-28 → 2019-03-07
    Hazardous operations 051300Z to 060001Z mar alternate 061300Z to 070001Z mar in area within 39 miles of…
  16. HYDROPAC 669/19 · Exercises2019-02-27 → 2019-03-08
    Hazardous operations 2100Z to 0900Z commencing daily 03 and 04 mar, alternate 2100Z to 0900Z commencing…
  17. HYDROPAC 668/19 · Exercises2019-02-27 → 2019-03-05
    Hazardous operations 022200Z to 030830Z alternate 2200Z to 0830Z commencing daily 03 and 04 mar in area…
  18. HYDROPAC 641/19 · Nav aids2019-02-26 → 2020-07-31
    Eroj light 07-09.8N 171-09.9E unlit
  19. NAVAREA XII 87/19 · Exercises2019-02-26 → 2019-04-01
    Hazardous operations 010800Z mar to 010800Z apr in area bound by 32-52-40N 119-12-01W, 33-08-04N 118-51-46W,…
  20. HYDROPAC 621/19 · Exercises2019-02-24 → 2019-03-31
    Gunnery exercises 2300Z to 0900Z commencing daily 28 feb thru 30 mar in area bound by 28-15-15N 146-29-47E,…

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