North Pacific Ocean

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

in force
37
last 12 months
50
since 1993
9,583
categories
15

In force now · 37

  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 379/26 · Missiles2026-08-21
    Space debris operations are hazardous in the South China Sea and western North Pacific from 23 Aug 23:00 to 24 Aug 05:00 UTC, then cancelled at 06:00 UTC.
  3. 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.
  4. 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.
  5. 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.
  6. 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.
  7. 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.
  8. NAVAREA XII 540/26 · Missiles2026-08-10
    Space debris hazard operations occur daily from August 13 to 26 in two North Pacific areas.
  9. 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.
  10. 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.
  11. 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.
  12. 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.
  13. 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.
  14. 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.
  15. 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.
  16. 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.
  17. 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.
  18. NAVAREA XII 510/26 · Exercises2026-07-23
    Hazardous operations are underway off the coast of California from August 1 to September 1.
  19. NAVAREA XII 511/26 · Exercises2026-07-23
    Hazardous operations are occurring from August 1 to September 1 in the North Pacific off California.
  20. 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.
  21. 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.
  22. 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.
  23. 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.
  24. 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.
  25. 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.
  26. HYDROPAC 1819/25 · Wrecks2025-07-17
    Depths between 5.4 and 18.8 meters reported at several positions in Marshall Islands, North Pacific.
  27. 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.
  28. 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.
  29. 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.
  30. 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.
  31. NAVAREA XII 208/25 · Nav aids2025-04-06
    Punta Soldado light at 03-48.50N 077-10.80W is discontinued.
  32. 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.
  33. NAVAREA XII 441/24 · Nav aids2024-06-18
    Morro Santo Domingo light at 28-14.37N 114-06.18W is unlit.
  34. 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.
  35. NAVAREA XII 721/22 · Nav aids2022-09-27
    In El Salvador, mooring buoys at 13-35.23N 089-51.10W are unlit.
  36. 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.
  37. 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

Exercises4,62348%
Missiles1,74518%
Other8259%
Nav aids7558%
Towing5326%
Derelicts4775%
Cable ops2252%
Surveys1502%
Containers1131%
Debris811%
Wrecks380%
Volcanic130%
Mines40%
Piracy10%
Icebergs10%

Archive · 9,546 cancelled

  1. NAVAREA XII 294/21 · Nav aids2021-07-01 → 2021-07-01
    Uscg remote communication facility honolulu (o) 21-26.1N 158-08.7W hf reception capabilities unreliable
  2. HYDROPAC 1922/21 · Exercises2021-06-30 → 2021-07-15
    Gunnery exercises 042100Z to 050900Z jul, alternate 2100Z to 0900Z daily 05 thru 08 jul and 2100Z to 1000Z…
  3. HYDROPAC 1919/21 · Exercises2021-06-30 → 2021-07-01
    Hazardous operations 302300Z jun to 011355Z jul in areas within three miles of: a. 13-26N 145-08E
  4. HYDROPAC 1906/21 · Exercises2021-06-28 → 2021-07-02
    Hazardous operations 2200Z to 1200Z daily, 27 jun thru 01 jul in area bound by 12-50N 145-10E, 11-25N…
  5. NAVAREA XII 292/21 · Missiles2021-06-26 → 2021-06-30
    Hazardous operations, rocket launching 301300Z to 301600Z jun, alternate 1300Z to 1600Z daily 01 thru 05 jul…
  6. NAVAREA XII 291/21 · Exercises2021-06-26 → 2021-08-01
    Hazardous operations 010800Z jul to 010800Z aug in area bound by 32-52-42N 119-11-58W, 33-08-04N 118-52-05W,…
  7. NAVAREA XII 290/21 · Exercises2021-06-26 → 2021-08-01
    Hazardous operations 010800Z jul to 010800Z aug in area bound by 32-55N 118-25W, 32-55N 118-15W, 32-40N…
  8. NAVAREA XII 289/21 · Exercises2021-06-26 → 2021-08-01
    Hazardous operations 010800Z jul to 010800Z aug in area bound by 32-33N 118-25W, 32-35N 118-16W, 32-35N…
  9. NAVAREA XII 288/21 · Missiles2021-06-26 → 2021-07-04
    Hazardous operations, space debris 1730Z to 1900Z daily 01 thru 04 jul in area bound by 06-27N 134-36W,…
  10. NAVAREA XII 285/21 · Exercises2021-06-25 → 2021-06-30
    Hazardous operations 281500Z to 282359Z jun, alternate 291500Z to 292359Z jun in areas: a. within 35 miles…
  11. HYDROPAC 1849/21 · Exercises2021-06-23 → 2021-07-04
    Gunnery exercises 272100Z to 280900Z jun, alternate 2100Z to 0900Z daily 28 jun thru 03 jul in area within…
  12. HYDROPAC 1846/21 · Exercises2021-06-23 → 2021-07-09
    Hazardous operations 231400Z jun to 091355Z jul in area bound by 13-10N 144-30E, 13-10N 144-42E, 12-50N…
  13. NAVAREA XII 282/21 · Exercises2021-06-22 → 2021-06-25
    Gunnery exercise 252100Z to 252200Z jun in area bound by 35-45N 123-25W, 36-05N 123-25W, 36-05N 123-45W,…
  14. HYDROPAC 1839/21 · Exercises2021-06-22 → 2021-06-23
    Hazardous operations 210830Z to 211430Z jun, alternate 0830Z to 1430Z daily 22 thru 30 jun in area bound by…
  15. NAVAREA XII 280/21 · Exercises2021-06-22 → 2021-06-23
    Hazardous operations 210830Z to 211430Z jun, alternate 0830Z to 1430Z daily 22 thru 30 jun in areas bound…
  16. HYDROPAC 1836/21 · Derelicts2021-06-22 → 2021-06-25
    North pacific DNC 12
  17. HYDROPAC 1832/21 · Derelicts2021-06-21 → 2021-06-24
    Derelict 79 foot S/V barlovento in 40-54.73N 126-44.53W at 211542Z jun
  18. NAVAREA XII 279/21 · Exercises2021-06-21 → 2021-06-22
    Gunnery exercise 251400Z to 251600Z jun in area bound by 35-45N 123-25W, 36-05N 123-25W, 36-05N 123-45W,…
  19. NAVAREA XII 278/21 · Exercises2021-06-21 → 2021-06-23
    Hazardous operations 231400Z to 240030Z, alternate 261400Z to 261900Z jun in area within 17 miles of 33-30N…
  20. NAVAREA XII 277/21 · Exercises2021-06-21 → 2021-06-23
    Hazardous operations 231400Z to 240030Z, alternate 261400Z to 261900Z jun in area within nine miles of…

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