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
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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)

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Other hazards in the North Pacific Ocean

Archive · 4,620 cancelled

  1. NAVAREA XII 50/012001-02-07 → 2001-02-09
    Hazardous operations 072326Z to 080115Z feb, alternate 082303Z to 090049Z feb within 105 miles of a…
  2. NAVAREA XII 49/012001-02-07 → 2001-02-09
    Hazardous operations 072300Z to 080200Z and 082230Z to 090100Z feb in area bound by 12-00S 132-45W, 10-00S…
  3. HYDROPAC 187/012001-02-07 → 2001-02-09
    Hazardous operations 072300Z to 080200Z and 082230Z to 090100Z feb in area bound by 12-00S 132-45W, 10-00S…
  4. HYDROPAC 174/012001-02-02 → 2001-02-07
    Hazardous operations 0701Z to 1601Z daily 07 thru 09 feb in areas bound by: a. 09-17N 167-23E, 09-23N…
  5. HYDROPAC 173/012001-02-02 → 2001-02-09
    Hazardous operations 0731Z to 1501Z daily 07 thru 09 feb in area bound by 12-50N 173-18E, 13-13N 173-54E,…
  6. NAVAREA XII 42/012001-02-02 → 2001-02-09
    Hazardous operations 0731Z to 1501Z daily 07 thru 09 feb in areas bound by: a. 34-48N 121-00W, 34-50N…
  7. HYDROPAC 136/012001-01-27 → 2001-02-02
    Gunnery exercises 020800Z to 021200Z feb in area bound by 34-35.0N 140-20.2E, 34-33.1N 140-20.2E, 34-20.8N…
  8. NAVAREA XII 31/012001-01-24 → 2001-01-25
    Hazardous operations 241900Z to 242359Z jan vicinity 32-36.5N 117-10.7W
  9. NAVAREA XII 30/012001-01-23 → 2001-01-24
    Hazardous operations 241100Z to 241600Z jan vicinity 32-36.5N 117-10.7W
  10. NAVAREA XII 26/012001-01-22 → 2001-01-28
    Hazardous operations 0030Z to 0500Z daily 26 thru 28 jan in area bound by 23-36N 165-00W, 28-03N 163-33W,…
  11. NAVAREA XII 24/012001-01-21 → 2001-01-23
    Hazardous operations 1328Z to 1508Z daily 23 thru 25 jan in areas bound by: a. 34-26N 120-39W, 34-26N…
  12. HYDROPAC 74/012001-01-15 → 2001-01-16
    Hazardous operations 190725Z to 190911Z jan, alternate 200703Z to 200849Z jan within 105 miles of trackline…
  13. NAVAREA XII 15/012001-01-15 → 2001-01-16
    Hazardous operations 190725Z to 190911Z jan, alternate 200703Z to 200849Z jan within 105 miles of trackline…
  14. NAVAREA XII 14/012001-01-12 → 2001-01-21
    Hazardous operations: a. 14 thru 20 jan vicinity 32-02.1N 118-36.8W, b. 0830Z to 2330Z daily 13 thru 19 jan…
  15. NAVAREA XII 13/012001-01-12 → 2001-01-22
    Hazardous operations 1328Z to 1508Z daily 18 thru 22 jan in areas bound by: a. 34-26N 120-39W, 34-26N…
  16. NAVAREA XII 434/002000-12-13 → 2000-12-20
    Hazardous operations 2000Z to 0511Z commencing daily 19 dec thru 20 jan in area bound by 07-12N 087-54W,…
  17. NAVAREA XII 432/002000-12-13 → 2000-12-14
    Hazardous operations 141600Z to 142300Z dec in area bound by 32-54-19N 119-13-31W, 33-08-04N 118-55-32W,…
  18. NAVAREA XII 431/002000-12-10 → 2000-12-15
    Hazardous operations 141600Z to 142000Z and 151530Z to 152030Z dec in area bound by 32-54-19N 119-13-31W,…
  19. HYDROPAC 1727/002000-11-27 → 2000-12-02
    Hazardous operations 010300Z to 010430Z and 020230Z to 020400Z dec in area bound by 12-00S 132-50W, 10-00S…
  20. HYDROPAC 1720/002000-11-26 → 2000-12-02
    Hazardous operations 010320Z to 010506Z dec, alternate 020254Z to 020443Z dec within 105 miles of a…
  21. NAVAREA XII 422/002000-11-26 → 2000-12-02
    Hazardous operations 010320Z to 010506Z dec, alternate 020254Z to 020443Z dec within 105 miles of a…
  22. NAVAREA XII 416/002000-11-18 → 2000-11-21
    Hazardous operations 211756Z to 211925Z nov in areas bound by: a. 34-28N 120-39W, 34-30N 120-48W, 34-46N…
  23. NAVAREA XII 413/002000-11-16 → 2000-11-18
    Hazardous operations 201756Z to 201925Z nov in areas bound by: a. 34-28N 120-39W, 34-30N 120-48W, 34-46N…
  24. NAVAREA XII 410/002000-11-14 → 2000-11-16
    Hazardous operations 1756Z to 1925Z daily 18 thru 20 nov in areas bound by: a. 34-28N 120-39W, 34-30N…
  25. NAVAREA XII 408/002000-11-13 → 2000-11-14
    Hazardous operations 0956Z to 1125Z daily 18 thru 20 nov in areas bound by: a. 34-28N 120-39W, 34-30N…
  26. NAVAREA XII 407/002000-11-10 → 2000-11-16
    Hazardous operations 1430Z to 2330Z daily 15 and 16 nov in area bound by 33-08.0N 120-17.0W, 33-08.0N…
  27. NAVAREA XII 402/002000-11-09 → 2000-11-16
    Hazardous operations 2000Z to 0515Z commencing daily 14 nov thru 14 dec in area bound by 06-55N 082-52W,…
  28. NAVAREA XII 398/002000-11-08 → 2000-11-09
    Hazardous operations 082315Z to 090100Z nov in area bound by 32-55N 118-25W, 32-55N 118-15W, 32-45N 118-15W,…
  29. NAVAREA XII 391/002000-10-27 → 2000-11-02
    Hazardous operations 012130Z to 012330Z nov in area bound by 32-54-19N 119-13-31W, 33-08-04N 118-55-32W,…
  30. NAVAREA XII 390/002000-10-27 → 2000-11-05
    Hazardous operations 302015Z to 302130Z, 311400Z to 311900Z and 312015Z to 312130Z oct, 011400Z to 011900Z,…
  31. NAVAREA XII 375/002000-10-13 → 2000-10-21
    Hazardous operations 161500Z to 161800Z, 171300Z to 171600Z, 181300Z to 181600Z, 190800Z to 191800Z, 200800Z…
  32. HYDROPAC 1502/002000-10-11 → 2000-10-12
    Hazardous operations 112332Z to 120112Z oct within 105 miles of trackline joining 11-02S 134-11W, 08-51S…
  33. NAVAREA XII 369/002000-10-11 → 2000-10-12
    Hazardous operations 112332Z to 120112Z oct within 105 miles of trackline joining 11-02S 134-11W, 08-51S…
  34. HYDROPAC 1495/002000-10-09 → 2000-10-11
    Hazardous operations 102354Z to 110134Z oct within 105 miles of trackline joining 11-02S 134-11W, 08-51S…
  35. NAVAREA XII 367/002000-10-09 → 2000-10-11
    Hazardous operations 102354Z to 110134Z oct within 105 miles of trackline joining 11-02S 134-11W, 08-51S…
  36. HYDROPAC 1475/002000-10-06 → 2000-10-09
    Hazardous operations 100020Z to 100200Z oct within 105 miles of trackline joining 11-02S 134-11W, 08-51S…
  37. NAVAREA XII 359/002000-10-06 → 2000-10-10
    Hazardous operations 100020Z to 100200Z oct within 105 miles of trackline joining 11-02S 134-11W, 08-51S…
  38. NAVAREA XII 356/002000-10-05 → 2000-10-07
    Hazardous operations 061400Z to 062330Z oct in area bound by 33-08-00N 120-17-00W, 33-08-00N 118-51-54W,…
  39. HYDROPAC 1470/002000-10-05 → 2000-10-06
    Hazardous operations 070131Z to 070317Z oct within 105 miles of trackline joining 11-02S 134-11W, 08-51S…
  40. NAVAREA XII 355/002000-10-05 → 2000-10-06
    Hazardous operations 070131Z to 070317Z oct within 105 miles of trackline joining 11-02S 134-11W, 08-51S…
  41. HYDROPAC 1453/002000-10-02 → 2000-10-05
    Hazardous operations 060150Z to 060335Z oct, alternate 070127Z to 070313Z oct within 105 miles of trackline…
  42. NAVAREA XII 348/002000-10-02 → 2000-10-05
    Hazardous operations 060150Z to 060335Z oct, alternate 070127Z to 070313Z oct within 105 miles of trackline…
  43. HYDROPAC 1432/002000-09-28 → 2000-10-06
    Hazardous operations 0100Z to 0400Z daily 03 thru 06 oct in area bound by 52-11N 160-04E, 52-32N 159-29E,…
  44. NAVAREA XII 338/002000-09-28 → 2000-10-07
    Hazardous operations: a. 1330Z to 2330Z daily 03 and 04 oct in area bound by 33-08-00N 120-17-00W, 33-08-00N…
  45. HYDROPAC 1398/002000-09-22 → 2000-09-28
    Hazardous operations 0701Z to 1601Z daily 28 thru 30 sep: a. in area bound by 09-09N 167-13E, 09-20N…
  46. HYDROPAC 1397/002000-09-22 → 2000-09-28
    Hazardous operations 0731Z to 1501Z daily 28 sep thru 02 oct in areas bound by: a. 11-36N 171-06E, 12-02N…
  47. NAVAREA XII 332/002000-09-22 → 2000-09-28
    Hazardous operations 0731Z to 1501Z daily 28 sep thru 02 oct in areas bound by: a. 34-50N 121-04W, 34-51N…
  48. NAVAREA XII 330/002000-09-22 → 2000-09-29
    Hazardous operations 272100Z to 280100Z and 281700Z to 290100Z sep in area bound by 32-54-20N 119-13-28W,…
  49. NAVAREA XII 329/002000-09-22 → 2000-09-27
    Hazardous operations 1000Z to 1300Z daily 26 and 27 sep within 108 miles of 31-36-23N 169-24-21W
  50. NAVAREA XII 325/002000-09-15 → 2000-09-22
    Hazardous operations 0952Z to 1132Z daily 20 thru 22 sep in areas bound by: a. 34-25N 120-39W, 34-26N…

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.