Military exercises in the North Pacific Ocean

Gunnery, firing and naval exercise areas.

in force
6
last 12 months
20
vs previous 12 (30)
-33%
since 1993
4,626

Coverage note: the NGA archive ends 2024-05 and live collection began 2026-08-17. Warnings issued in between are here only if they were still in force when collection started, so 2024–2026 are under-counted.

In force now · 6

  1. NAVAREA XI 380/26in force2026-08-22
    Hazardous operations are taking place in the Marianas area from 27 August 0200Z to 0600Z, with cancellation at 0700Z.
    North Pacific, Marianas
  2. HYDROPAC 2152/26in force2026-07-27
    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.
    North Pacific
  3. NAVAREA XI 342/26in force2026-07-27
    Gunnery exercise in North Pacific near Nanpo Shoto daily from 31 July to 30 August, 2300Z to 0900Z, in a bounded area.
    North Pacific, Nanpo Shoto · Gunnery
  4. NAVAREA XII 512/26in force2026-07-23
    Hazardous operations are scheduled off the California coast in the North Pacific from August 1 to September 1.
    North Pacific · California
  5. NAVAREA XII 510/26in force2026-07-23
    Hazardous operations are underway off the coast of California from August 1 to September 1.
    North Pacific · California
  6. NAVAREA XII 511/26in force2026-07-23
    Hazardous operations are occurring from August 1 to September 1 in the North Pacific off California.
    North Pacific · California

Longest in force

  1. NAVAREA XII 511/26in force2026-07-23 · 33 d
    Hazardous operations are occurring from August 1 to September 1 in the North Pacific off California.
    North Pacific · California
  2. NAVAREA XII 510/26in force2026-07-23 · 33 d
    Hazardous operations are underway off the coast of California from August 1 to September 1.
    North Pacific · California
  3. NAVAREA XII 512/26in force2026-07-23 · 33 d
    Hazardous operations are scheduled off the California coast in the North Pacific from August 1 to September 1.
    North Pacific · California
  4. NAVAREA XI 342/26in force2026-07-27 · 29 d
    Gunnery exercise in North Pacific near Nanpo Shoto daily from 31 July to 30 August, 2300Z to 0900Z, in a bounded area.
    North Pacific, Nanpo Shoto · Gunnery
  5. HYDROPAC 2152/26in force2026-07-27 · 29 d
    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.
    North Pacific

By year

93
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

Other hazards in the North Pacific Ocean

Archive · 4,620 cancelled

  1. HYDROPAC 698/002000-05-09 → 2000-05-13
    Hazardous operations 122100Z to 122345Z may in area bound by 08-51N 166-30E, 08-43N 167-43E, 07-51N 166-52E
  2. NAVAREA XII 148/002000-05-05 → 2000-05-12
    Hazardous operations: a. 101300Z to 102100Z and 111300Z to 112100Z may in area bound by 33-08-00N…
  3. NAVAREA XII 144/002000-04-29 → 2000-05-06
    Hazardous operations 051600Z to 052300Z may in area bound by 32-54-20N 119-13-28W, 33-08-05N 118-55-31W,…
  4. NAVAREA XII 137/002000-04-25 → 2000-04-26
    Hazardous operations 261944Z to 262130Z apr within 105 miles of trackline joining 11-02S 134-11W, 08-51S…
  5. HYDROPAC 625/002000-04-25 → 2000-04-26
    Hazardous operations 261944Z to 262130Z apr within 105 miles of trackline joining 11-02S 134-11W, 08-51S…
  6. HYDROPAC 594/002000-04-19 → 2000-04-25
    Hazardous operations 242032Z to 242218Z apr, alternate 252009Z to 252155Z apr within 105 miles of trackline…
  7. NAVAREA XII 129/002000-04-19 → 2000-04-25
    Hazardous operations 242032Z to 242218Z apr, alternate 252009Z to 252155Z apr within 105 miles of trackline…
  8. NAVAREA XII 115/002000-04-06 → 2000-04-14
    Hazardous operations 101800Z to 110400Z, 121800Z to 130400Z, 131830Z to 140100Z and 141600Z to 142300Z apr…
  9. NAVAREA XII 99/002000-03-24 → 2000-03-30
    Hazardous operations 1430Z to 2359Z daily 28 and 29 mar in area bound by 32-10-52N 120-16-36W, 32-52-40N…
  10. NAVAREA XII 93/002000-03-20 → 2000-03-25
    Hazardous operations 1956Z to 2143Z daily 25 thru 27 mar in areas bound by: a. 34-28N 120-38W, 34-30N…
  11. NAVAREA XII 89/002000-03-18 → 2000-03-25
    Hazardous operations 1430Z to 2359Z daily 23 and 24 mar in area bound by 32-11-00N 120-17-00W, 32-52-18N…
  12. NAVAREA XII 84/002000-03-16 → 2000-03-22
    Hazardous operations 2000Z to 0230Z commencing daily 21 mar thru 21 apr in area bound by 08-44N 094-45W,…
  13. NAVAREA XII 77/002000-03-08 → 2000-03-12
    Hazardous operations 0852Z to 1052Z daily 12 thru 14 mar in areas bound by: a. 34-28N 120-43W, 34-28N…
  14. HYDROPAC 376/002000-03-04 → 2000-03-08
    Hazardous operations 0701Z to 1601Z daily 08 thru 10 mar in areas bound by: a. 11-10N 167-36E, 11-21N…
  15. HYDROPAC 375/002000-03-04 → 2000-03-08
    Hazardous operations 0731Z to 1501Z daily 08 thru 10 mar in area bound by 12-14N 171-22E, 13-12N 172-54E,…
  16. NAVAREA XII 72/002000-03-04 → 2000-03-08
    Hazardous operations 0731Z to 1501Z daily 08 thru 10 mar in areas bound by: a. 34-49N 120-59W, 34-51N…
  17. NAVAREA XII 66/002000-03-01 → 2000-03-04
    Hazardous operations 0852Z to 1052Z daily 04 thru 06 mar in areas bound by: a. 34-28N 120-43W, 34-28N…
  18. NAVAREA XII 65/002000-03-01 → 2000-03-01
    Hazardous operations 0852Z to 1052Z daily 04 thru 06 mar in areas bound by: a. 34-28N 120-43W, 34-28N…
  19. HYDROPAC 325/002000-02-26 → 2000-03-31
    Gunnery exercises 2300Z to 0900Z commencing daily 29 feb thru 30 mar in area bound by 27-55N 144-58E, 25-00N…
  20. NAVAREA XII 55/002000-02-22 → 2000-02-25
    Hazardous operations 231430Z to 240100Z and 241430Z to 250100Z feb in area bound by 32-10-52N 120-16-36W,…
  21. NAVAREA XII 52/002000-02-19 → 2000-02-22
    Hazardous operations 231430Z to 240100Z and 241430Z to 250100Z feb in area bound by 32-10.8N 120-16.6W,…
  22. NAVAREA XII 48/002000-02-15 → 2000-02-22
    Hazardous operations 0852Z to 1051Z daily 20 thru 22 feb in areas bound by: a. 34-28N 120-43W, 34-28N…
  23. NAVAREA XII 45/002000-02-11 → 2000-02-17
    Hazardous operations 170400Z to 170600Z feb in areas bound by: a. 31-10N 117-35W, 31-10N 116-46W, 30-25N…
  24. HYDROPAC 241/002000-02-09 → 2000-02-13
    Hazardous operations 120900Z to 121030Z and 130900Z to 131030Z feb within 108 miles of 24-23N 161-46E
  25. HYDROPAC 214/002000-02-03 → 2000-02-10
    Hazardous operations 080130Z to 080230Z feb, alternate 0130Z to 0230Z daily 09 thru 28 feb in areas bound…
  26. NAVAREA XII 24/002000-01-21 → 2000-01-27
    Hazardous operations 0233Z to 0704Z daily 27 thru 29 jan in areas bound by: a. 34-25N 120-47W, 34-25N…
  27. HYDROPAC 73/002000-01-14 → 2000-01-19
    Hazardous operations 0001Z to 0830Z daily 19 thru 21 jan in areas bound by: a. 12-00.0N 162-00.0E, 19-00.0N…
  28. NAVAREA XII 14/002000-01-14 → 2000-01-19
    Hazardous operations 0131Z to 0700Z daily 19 thru 21 jan in areas bound by: a. 34-48N 120-56W, 34-51N…
  29. NAVAREA XII 11/002000-01-11 → 2000-01-15
    Hazardous operations 0224Z to 0654Z daily 15 thru 17 jan in areas bound by: a. 34-25N 120-47W, 34-25N…
  30. NAVAREA XII 9/002000-01-10 → 2000-01-15
    Hazardous operations 131430Z to 132359Z and 141430Z to 142359Z jan in area bound by 32-11.0N 120-17.0W,…
  31. NAVAREA XII 442/991999-12-18 → 1999-12-20
    Hazardous operations 200050Z to 200258Z dec within: a. 155 miles of trackline between 15-15N 150-48W and…
  32. NAVAREA XII 441/991999-12-18 → 1999-12-20
    Hazardous operations 190140Z to 190404Z dec, alternate 200053Z to 200456Z dec within: a. 155 miles of…
  33. NAVAREA XII 439/991999-12-17 → 1999-12-21
    Hazardous operations 0637Z to 0824Z daily 20 thru 22 dec: a. in area bound by 34-21N 120-44W, 34-23N…
  34. NAVAREA XII 438/991999-12-17 → 1999-12-19
    Hazardous operations 180207Z to 180434Z dec, alternate 190140Z to 190409Z dec within: a. 155 miles of…
  35. NAVAREA XII 436/991999-12-16 → 1999-12-17
    Hazardous operations 0637Z to 0824Z daily 20 thru 22 dec: a. in area bound by 34-21N 120-44W, 34-23N…
  36. HYDROPAC 1411/991999-12-16 → 1999-12-17
    Hazardous operations 170218Z to 170430Z dec within 30 miles of trackline joining 10-39S 133-50W, 08-28S…
  37. NAVAREA XII 434/991999-12-16 → 1999-12-17
    Hazardous operations 170218Z to 170430Z dec within 30 miles of trackline joining 10-39S 133-50W, 08-28S…
  38. NAVAREA XII 432/991999-12-16 → 1999-12-18
    Hazardous operations 1803Z to 1958Z daily 16 thru 18 dec in areas bound by: a. 34-28N 120-35W, 34-29N…
  39. NAVAREA XII 430/991999-12-13 → 1999-12-17
    Hazardous operations 170237Z to 170500Z dec, alternate 180206Z to 180429Z dec within: a. 155 miles of…
  40. NAVAREA XII 424/991999-12-11 → 1999-12-16
    Hazardous operations 1803Z to 1958Z daily 16 thru 18 dec in areas bound by: a. 34-28N 120-35W, 34-29N…
  41. NAVAREA XII 418/991999-12-08 → 1999-12-13
    Hazardous operations 120501Z to 120725Z dec, alternate 130431Z to 130659Z dec within: a. 155 miles of…
  42. NAVAREA XII 417/991999-12-07 → 1999-12-08
    Hazardous operations 110513Z to 110813Z dec, alternate 120442Z to 120744Z dec within: a. 155 miles of…
  43. NAVAREA XII 415/991999-12-06 → 1999-12-13
    Hazardous operations 1708Z to 1848Z daily 11 thru 13 dec in areas bound by: a. 34-26N 120-39W, 34-26N…
  44. NAVAREA XII 411/991999-12-03 → 1999-12-10
    Hazardous operations 071900Z to 072100Z, 072200Z to 080001Z, 082200Z to 090001Z, 092200Z to 100001Z and…
  45. NAVAREA XII 408/991999-12-02 → 1999-12-09
    Hazardous operations 1430Z to 2359Z daily 07 and 08 dec in area bound by 32-11-00N 120-17-00W, 32-52-18N…
  46. HYDROPAC 1224/991999-11-11 → 1999-11-15
    Hazardous operations 15 nov, alternate daily 16 nov thru 31 dec: a. 0734Z to 0920Z in area bound by 30-05N…
  47. HYDROPAC 1209/991999-11-09 → 1999-11-13
    Hazardous operations 0601Z to 1601Z daily 13 thru 15 nov in areas bound by: a. 09-16N 167-20E, 09-23N…
  48. NAVAREA XII 378/991999-11-09 → 1999-11-13
    Hazardous operations 0731Z to 1501Z daily 13 thru 15 nov in areas bound by: a. 34-50N 121-03W, 34-52N…
  49. NAVAREA XII 375/991999-11-06 → 1999-11-08
    Hazardous operations 072130Z to 080100Z nov in area bound by 31-00N 118-00W, 29-35N 118-00W, 29-35N 118-10W,…
  50. HYDROPAC 1019/991999-09-28 → 1999-10-03
    Hazardous operations 0001Z to 0830Z daily 03 thru 05 oct in area bound by 12-00N 162-00E, 19-00N 162-00E,…

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

Military exercises in the North Pacific Ocean — page 91 · seahazards