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 · 32 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 · 32 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 · 32 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 629/092009-03-27 → 2009-04-30
    Gunnery exercises 2300Z to 0900Z commencing daily 31 mar to 29 apr in area bounded by 27-55-15N 144-57-48E,…
  2. NAVAREA XII 154/092009-03-25 → 2009-03-26
    Gunnery exercises 261600Z to 262000Z mar within six miles of 30-06.4N 153-09.1W
  3. HYDROPAC 594/092009-03-20 → 2009-04-05
    Hazardous operations 0200Z to 0700Z daily 04 thru 08 apr in areas bound by: a. 40-41-40N 135-34-45E,…
  4. NAVAREA XII 141/092009-03-19 → 2009-03-19
    Gunnery exercises 190100Z to 190500Z mar vicinity 51-01N 167-36W
  5. HYDROPAC 551/092009-03-16 → 2009-03-19
    Hazardous operations 0300Z to 0730Z daily 17 thru 19 mar within ten miles of 16-01N 146-04E
  6. NAVAREA XII 134/092009-03-15 → 2009-03-19
    Hazardous operations 191500Z to 191900Z mar in areas bound by: a. 30-33N 128-10W, 29-36N 127-47W, 30-07N…
  7. HYDROPAC 514/092009-03-11 → 2009-03-25
    Gunnery exercises 152100Z to 160900Z mar, alternate 2100Z to 0900Z commencing daily 16 thru 24 mar within 25…
  8. NAVAREA XII 129/092009-03-11 → 2009-03-18
    Hazardous operations 162330Z to 170500Z mar, alternate 2330Z to 0500Z commencing daily 17 and 19 mar in area…
  9. HYDROPAC 431/092009-02-24 → 2009-03-31
    Gunnery exercises 2300Z to 0900Z commencing daily 28 feb thru 30 mar in area bound by 27-55-15N 144-57-48E,…
  10. HYDROPAC 425/092009-02-23 → 2009-02-28
    Hazardous operations 1800Z to 2100Z daily 26 thru 28 feb within 280 miles of 36-16N 148-11E
  11. HYDROPAC 421/092009-02-22 → 2009-02-27
    Hazardous operations 2200Z to 1100Z commencing daily 22 thru 26 feb within ten miles of 16-01N 146-04E
  12. NAVAREA XII 95/092009-02-20 → 2009-02-24
    Hazardous operations 0920Z to 1058Z daily 24 thru 26 feb in areas bound by: a. 34-34N 120-40W, 34-35N…
  13. NAVAREA XII 93/092009-02-19 → 2009-02-20
    Hazardous operations 0950Z to 0958Z daily 24 thru 26 feb in areas bound by: a. 34-34N 120-40W, 34-35N…
  14. HYDROPAC 349/092009-02-14 → 2009-02-20
    Hazardous operations 0100Z to 0800Z daily 16 thru 20 feb within ten miles of 16-01N 146-04E
  15. NAVAREA XII 77/092009-02-12 → 2009-02-13
    Hazardous operations 1700Z to 0130Z commencing daily 13 thru 15 feb: a. in area bound by 32-51.58N…
  16. NAVAREA XII 69/092009-02-08 → 2009-02-15
    Hazardous operations 1700Z to 0130Z commencing daily 13 and 14 feb in areas: a. bound by 32-51-58N…
  17. HYDROPAC 295/092009-02-06 → 2009-02-14
    Hazardous operations 2330Z to 0130Z commencing daily 10 thru 13 feb within 216 miles of 03-00N 166-00E
  18. HYDROPAC 259/092009-01-31 → 2009-02-01
    Hazardous operations 1900Z to 1359Z commencing daily 30 jan thru 06 feb within ten miles of 16-01N 146-04E
  19. HYDROPAC 246/092009-01-30 → 2009-02-07
    Hazardous operations 1900Z to 1359Z commencing daily 30 jan thru 06 feb within ten miles of 16-01N 146-04E
  20. NAVAREA XII 48/092009-01-30 → 2009-02-09
    Hazardous operations 0952Z to 1132Z daily 04 thru 09 feb in areas bound by: a. 34-28N 120-39W, 34-30N…
  21. HYDROPAC 217/092009-01-27 → 2009-01-28
    Hazardous operations 290630Z to 290930Z jan within ten miles of 16-01N 146-04E
  22. HYDROPAC 214/092009-01-27 → 2009-02-28
    Gunnery exercises 2300Z to 0900Z commencing daily 31 jan thru 27 feb in area bound by 27-55-15N 144-57-48E,…
  23. HYDROPAC 194/092009-01-23 → 2009-02-06
    Gunnery exercises 272100 to 280900Z jan, alternate 2100Z to 0900Z commencing daily 28 jan thru 05 feb within…
  24. HYDROPAC 175/092009-01-21 → 2009-01-22
    Hazardous operations 221200Z to 221600Z jan within ten miles of 16-01N 146-04E
  25. HYDROPAC 127/092009-01-15 → 2009-01-16
    Hazardous operations 160001Z to 160700Z jan within ten miles of 16-01N 146-04E
  26. HYDROPAC 2573/082008-12-28 → 2008-12-31
    Hazardous operations 2000Z to 1330Z commencing daily 28 thru 30 dec within ten miles of 16-01N 146-04E
  27. HYDROPAC 2568/082008-12-27 → 2009-01-31
    Gunnery exercises 2300Z to 0900Z commencing daily 31 dec thru 30 jan 09 in area bound by 27-55-15N…
  28. HYDROPAC 2554/082008-12-25 → 2008-12-28
    Hazardous operations 2000Z to 1330Z commencing daily 28 thru 30 dec within ten miles of 16-01N 146-04E
  29. HYDROPAC 2545/082008-12-23 → 2008-12-25
    Hazardous operations 2000Z to 1330Z commencing daily 28 thru 31 dec within ten miles of 16-01N 146-04E
  30. HYDROPAC 2474/082008-12-13 → 2008-12-19
    Hazardous operations 0001Z to 1000Z daily 15 thru 19 dec within ten miles of 16-01N 146-04E
  31. HYDROPAC 2414/082008-12-07 → 2008-12-13
    Hazardous operations 1330Z to 1500Z daily 10 thru 13 dec within 216 miles of 31-55N 153-45E
  32. NAVAREA XII 506/082008-11-30 → 2008-12-09
    Hazardous operations 1930Z to 0130Z commencing daily 05 thru 08 dec in areas bound by: a. 34-52N 120-51W,…
  33. HYDROPAC 2320/082008-11-26 → 2008-12-31
    Gunnery exercises 2300Z to 0900Z commencing daily 30 nov thru 30 dec in area bound by 27-55-15N 144-57-48E,…
  34. NAVAREA XII 481/082008-11-16 → 2008-11-20
    Hazardous operations 200130Z to 200700Z nov, alternate 0130Z to 0700Z daily 21 and 22 nov in area bound by…
  35. NAVAREA XII 470/082008-11-10 → 2008-11-12
    Gunnery exercises 112200Z to 120300Z nov within five miles of: a. 53-45.9N 161-00.3W
  36. HYDROPAC 2201/082008-11-07 → 2008-11-10
    Hazardous operations 0130Z to 1330Z daily 09 and 10 nov within ten miles of 16-01N 146-04E
  37. HYDROPAC 2162/082008-11-01 → 2008-11-06
    Hazardous operations 052000Z to 052200Z and 062100Z to 062230Z nov within 216 miles of 31-55N 153-45E
  38. HYDROPAC 2158/082008-11-01 → 2008-11-07
    Hazardous operations 0245Z to 0400Z daily 03 thru 07 nov within ten miles of 16-01N 146-04E
  39. HYDROPAC 2157/082008-11-01 → 2008-11-05
    Hazardous operations 0701Z to 1528Z daily 05 thru 07 nov in areas bound by: a. 09-16N 167-20E, 09-23N…
  40. HYDROPAC 2156/082008-11-01 → 2008-11-05
    Hazardous operations 0801Z to 1530Z daily 05 thru 07 nov in area bound by 14-48N 175-04E, 13-39N 175-43E,…
  41. NAVAREA XII 458/082008-11-01 → 2008-11-05
    Hazardous operations 0801Z to 1401Z daily 05 thru 07 nov in areas bound by: a. 34-50N 121-01W, 34-52N…
  42. NAVAREA XII 451/082008-10-29 → 2008-11-02
    Hazardous operations 020030Z to 020400Z nov, alternate 0030Z to 0400Z daily 03 and 04 nov in area bound by…
  43. NAVAREA XII 450/082008-10-28 → 2008-11-01
    Hazardous operations 292130Z to 300100Z and 302130Z to 310200Z oct, alternate 312130Z oct to 010200Z nov in…
  44. HYDROPAC 2110/082008-10-28 → 2008-11-30
    Gunnery exercises 2300Z to 0900Z commencing daily 31 oct thru 29 nov in area bound by 27-55-15N 144-57-48E,…
  45. NAVAREA XII 447/082008-10-27 → 2008-10-29
    Hazardous operations 010030Z to 010400Z nov, alternate 020030Z to 020400Z nov and 030030Z to 030500Z nov in…
  46. HYDROPAC 2090/082008-10-25 → 2008-10-30
    Hazardous operations 300630Z to 300830Z oct within ten miles of 16-01N 146-04E
  47. NAVAREA XII 438/082008-10-23 → 2008-10-28
    Hazardous operations 2130Z to 0100Z commencing daily 28 and 29 oct, alternate 30 oct in area bound by 22-02N…
  48. NAVAREA XII 433/082008-10-20 → 2008-10-25
    Hazardous operations 0228Z to 0229Z daily 25 thru 28 oct in areas bound by: a. 34-29N 120-40W, 34-31N…
  49. HYDROPAC 2013/082008-10-15 → 2008-10-29
    Hazardous operations 2200Z to 1500Z commencing daily 14 thru 28 oct within ten miles of 16-01N 146-04E
  50. HYDROPAC 1999/082008-10-14 → 2008-10-20
    Hazardous operations 191630Z to 191900Z, 201700Z to 201915Z, 211845Z to 212100Z and 221845Z to 222115Z oct…

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 74 · seahazards