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. HYDROPAC 1356/21 · Exercises2021-05-05 → 2021-05-06
    Hazardous operations 060030Z to 060330Z may in area bound by 12-50N 145-10E, 11-25N 147-00E, 10-30N 147-00E,…
  2. NAVAREA XII 198/21 · Exercises2021-05-03 → 2021-05-10
    Hazardous operations 1430Z to 0100Z daily 07 and 10 may, alternate 1430Z to 0100Z daily 08 and 11 may in…
  3. NAVAREA XII 197/21 · Exercises2021-05-03 → 2021-05-03
    Hazardous operations 1430Z to 0100Z daily 07 and 10 may, alternate 1430Z to 0100Z daily 08 and 11 may in…
  4. HYDROPAC 1325/21 · Surveys2021-05-01 → 2021-05-07
    Underwater operations 02 thru 06 may by submersible shinkai 6500 and M/V yokosuka in area bound by 36-00N…
  5. HYDROPAC 1324/21 · Exercises2021-05-01 → 2021-05-06
    Hazardous operations 2300Z to 1355Z daily 02 thru 05 may in areas within three miles of: a. 13-26N 145-08E
  6. HYDROPAC 1320/21 · Cable ops2021-05-01 → 2021-05-06
    Cable operations in progress until further notice by M/V aniek in vicinity of trackline joining 22-22.1N…
  7. NAVAREA XII 196/21 · Exercises2021-05-01 → 2021-05-07
    Hazardous operations 062100Z to 062359Z may in area bound by 35-08N 121-39W, 35-03N 121-22W, 33-50N 121-04W,…
  8. HYDROPAC 1316/21 · Exercises2021-05-01 → 2021-05-05
    Hazardous operations: a. 0636Z to 1415Z daily 05 and 06 may in area bound by 11-47N 172-05E, 10-58N 173-28E,…
  9. NAVAREA XII 195/21 · Exercises2021-05-01 → 2021-05-05
    Hazardous operations: a. 0636Z to 1347Z daily 05 and 06 may in area bound by 34-42N 121-20W, 34-55N 121-20W,…
  10. HYDROPAC 1306/21 · Exercises2021-04-30 → 2021-05-05
    Hazardous operations 050714Z to 051353Z may, alternate 060705Z to 061344Z may in area bound by 09-17N…
  11. NAVAREA XII 190/21 · Exercises2021-04-27 → 2021-05-01
    Hazardous operations 301400Z apr to 010200Z may, in area bound by 33-53N 119-40W, 33-47N 119-26W, 33-35N…
  12. NAVAREA XII 189/21 · Exercises2021-04-27 → 2021-05-04
    Hazardous operations 1600Z to 0200Z daily 28 apr, 01 and 02, and 04 thru 06 may in area bound by 33-43N…
  13. NAVAREA XII 188/21 · Exercises2021-04-27 → 2021-04-27
    Hazardous operations 1600Z to 0200Z daily 28 apr, 01 and 02, and 04 thru 06 may in area bound by 33-43N…
  14. NAVAREA XII 185/21 · Exercises2021-04-26 → 2021-06-01
    Hazardous operations 010800Z may to 010800Z jun in area bound by 32-55-00N 118-25-00W, 32-55-00N 118-15-00W,…
  15. NAVAREA XII 184/21 · Exercises2021-04-26 → 2021-06-01
    Hazardous operations 010800Z may to 010800Z jun in area bound by 32-52-42N 119-11-58W, 33-08-04N 118-52-05W,…
  16. NAVAREA XII 183/21 · Exercises2021-04-26 → 2021-06-01
    Hazardous operations 010800Z may to 010800Z jun in area bound by 32-33N 118-25W, 32-35N 118-16W, 32-35N…
  17. NAVAREA XII 182/21 · Exercises2021-04-26 → 2021-04-27
    Hazardous operations 301400Z apr to 010200Z may, alternate 021400Z to 030200Z may in area bound by 33-53N…
  18. HYDROPAC 1255/21 · Other2021-04-26 → 2021-05-14
    46 foot S/V air ops requesting assistance in 47-29.31N 128-39.22W
  19. NAVAREA XII 179/21 · Exercises2021-04-24 → 2021-04-30
    Hazardous operations 291400Z to 292359Z apr in area bound by 33-56N 119-54W, 33-57N 119-28W, 33-48N 119-16W,…
  20. NAVAREA XII 177/21 · Exercises2021-04-23 → 2021-04-27
    Hazardous operations 1600Z to 0200Z daily 28 and 30 apr and 01 and 02 may in area bound by 33-43N 120-31W,…

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