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 1182/072007-07-07 → 2007-07-09
    Hazardous operations 2230Z to 1245Z commencing daily 08 thru 12 jul within ten miles of 16-01N 146-04E
  2. HYDROPAC 1176/072007-07-06 → 2007-07-13
    Hazardous operations 2230Z to 1245Z commencing daily 08 thru 12 jul within ten miles of 16-01N 146-04E
  3. HYDROPAC 1168/072007-07-05 → 2007-07-06
    Hazardous operations 060100Z to 060400Z jul in area bound by 13-10N 144-43E, 13-10N 144-30E, 12-45N 144-30E,…
  4. HYDROPAC 1167/072007-07-05 → 2007-07-06
    Hazardous operations 060100Z to 060400Z jul within ten miles of 16-01N 146-04E
  5. HYDROPAC 1150/072007-07-03 → 2007-07-10
    Hazardous operations 0100Z to 0230Z daily 07 thru 10 jul within 216 miles of 03-00N 166-00E
  6. HYDROPAC 1145/072007-07-01 → 2007-07-31
    Gunnery exercises 2300Z to 0900Z commencing daily 01 thru 30 jul in area bound by 27-55-15N 144-57-48E,…
  7. HYDROPAC 1119/072007-06-27 → 2007-07-04
    Hazardous operations 1900Z to 2200Z daily 01 thru 03 jul and 0001Z to 0300Z daily 02 thru 04 jul in area…
  8. NAVAREA XII 159/072007-06-26 → 2007-06-29
    Hazardous operations 1430Z to 1630Z daily 28 and 29 jun within 108 miles of 20-44N 173-38W
  9. HYDROPAC 1085/072007-06-22 → 2007-06-24
    Hazardous operations 212330Z to 220300Z jun, alternate 222330Z to 230330Z jun, 232330Z to 240300Z jun in…
  10. NAVAREA XII 148/072007-06-22 → 2007-06-24
    Hazardous operations 212330Z to 220300Z jun, alternate 222330Z to 230330Z jun, 232330Z to 240300Z jun in…
  11. HYDROPAC 1010/072007-06-10 → 2007-06-23
    Hazardous operations 2200Z to 0700Z commencing daily 11 thru 22 jun within ten miles of 16-01N 146-04E
  12. NAVAREA XII 135/072007-06-08 → 2007-06-17
    Hazardous operations 142330Z to 150300Z jun, alternate 152330Z to 160330Z jun, alternate 162330Z to 170300Z…
  13. HYDROPAC 996/072007-06-08 → 2007-06-10
    Hazardous operations 142330Z to 150300Z jun, alternate 152330Z to 160330Z jun, 162330Z to 170300Z jun in…
  14. NAVAREA XII 130/072007-06-03 → 2007-06-08
    Hazardous operations 0151Z to 0334Z daily 08 thru 12 jun in areas bound by: a. 34-29N 120-40W, 34-31N…
  15. HYDROPAC 949/072007-05-28 → 2007-06-01
    Hazardous operations 302300Z to 310200Z may and 312300Z may to 010200Z jun in area bound by 51-58.0N…
  16. HYDROPAC 936/072007-05-27 → 2007-06-30
    Gunnery exercises 2300Z to 0900Z commencing daily 31 may thru 29 jun in area bound by 27-55-15N 144-57-48E,…
  17. NAVAREA XII 122/072007-05-24 → 2007-05-29
    Hazardous operations 1330Z to 1917Z daily 25 thru 29 may in areas bound by: a. 34-52N 120-51W, 34-52N…
  18. NAVAREA XII 120/072007-05-23 → 2007-05-24
    Hazardous operations 1400Z to 1817Z daily 25 thru 29 may in areas bound by: a. 34-52N 120-51W, 34-52N…
  19. NAVAREA XII 119/072007-05-22 → 2007-05-23
    Hazardous operations 1330Z to 1917Z daily 24 thru 29 may in areas bound by: a. 34-52N 120-51W, 34-52N…
  20. HYDROPAC 890/072007-05-18 → 2007-05-28
    Hazardous operations 1000Z to 0200Z commencing daily 25 thru 27 may within ten miles of 16-01N 146-04E
  21. NAVAREA XII 113/072007-05-15 → 2007-05-17
    Hazardous operations 171300Z to 171700Z may in area bound by 33-46N 122-38W, 34-23N 120-30W, 34-00N 120-30W,…
  22. HYDROPAC 852/072007-05-10 → 2007-05-18
    Hazardous operations 151500Z to 161200Z and 171500Z to 180900Z may commencing daily in area bound by…
  23. NAVAREA XII 108/072007-05-09 → 2007-05-10
    Gunnery exercises 092200Z to 100001Z may within five miles of 40-31.3N 155-02.0W
  24. HYDROPAC 845/072007-05-09 → 2007-05-15
    Hazardous operations 0400Z to 0700Z daily 14 and 15 may in area bound by 51-58.0N 160-21.4E, 52-30.3N…
  25. HYDROPAC 795/072007-04-30 → 2007-05-01
    Hazardous operations 011000Z to 011330Z may within ten miles of 16-01N 146-04E
  26. HYDROPAC 789/072007-04-29 → 2007-04-30
    Hazardous operations 300730Z to 301030Z apr in area bound by 13-10N 144-43E, 13-10N 144-30E, 12-45N 144-30E,…
  27. HYDROPAC 774/072007-04-26 → 2007-05-31
    Gunnery exercises 2300Z to 0900Z commencing daily 30 apr thru 30 may in area bound by 27-55-15N 144-57-48E,…
  28. HYDROPAC 731/072007-04-22 → 2007-04-27
    Hazardous operations 1953Z to 2131Z daily 25 thru 27 apr in areas bound by: a. 35-32N 123-17W, 36-26N…
  29. NAVAREA XII 91/072007-04-22 → 2007-04-27
    Hazardous operations 1953Z to 2131Z daily 25 thru 27 apr in areas bound by: a. 35-32N 123-17W, 36-26N…
  30. NAVAREA XII 90/072007-04-22 → 2007-04-29
    Hazardous operations 262130Z to 270030Z apr, alternate 272130Z to 280030Z apr and 282130Z to 290030Z apr in…
  31. NAVAREA XII 86/072007-04-15 → 2007-04-16
    Gunnery exercises 160800Z to 161100Z apr within 15 miles of trackline between 27-52.4N 134-27.8W and…
  32. HYDROPAC 674/072007-04-14 → 2007-04-26
    Hazardous operations 1800Z to 1400Z commencing daily 18 thru 25 apr within ten miles of 16-01N 146-04E
  33. HYDROPAC 655/072007-04-12 → 2007-04-17
    Hazardous operations 2300Z to 0200Z commencing daily 15 and 16 apr and 0400Z to 0700Z daily 16 and 17 apr in…
  34. HYDROPAC 654/072007-04-12 → 2007-04-20
    Hazardous operations 2330Z to 0230Z commencing daily 17 thru 19 apr and 0430Z to 0730Z daily 18 thru 20 apr…
  35. HYDROPAC 652/072007-04-12 → 2007-04-17
    Hazardous operations 0045Z to 0300Z daily 16 and 17 apr within ten miles of 16-01N 146-04E
  36. HYDROPAC 619/072007-04-05 → 2007-04-13
    Hazardous operations 2230Z to 2359Z daily 09 thru 12 apr within 216 miles of 21-55N 153-45E
  37. HYDROPAC 571/072007-03-29 → 2007-04-30
    Gunnery exercises 2300Z to 0900Z commencing daily 31 mar thru 29 apr in area bound by 27-55.25N 144-57.80E,…
  38. HYDROPAC 500/072007-03-19 → 2007-03-26
    Hazardous operations 2230Z to 0400Z commencing daily 19 thru 25 mar in area bound by 09-06.0N 167-34.2E,…
  39. HYDROPAC 494/072007-03-17 → 2007-03-23
    Hazardous operations 0300Z to 0830Z daily 21 thru 23 mar in area bound by 23-34N 159-00E, 23-48N 158-52E,…
  40. NAVAREA XII 67/072007-03-16 → 2007-03-23
    Hazardous operations 0300Z to 0830Z daily 21 thru 23 mar in areas bound by: a. 34-55N 120-56W, 34-56N…
  41. HYDROPAC 491/072007-03-16 → 2007-03-23
    Hazardous operations 0300Z to 0830Z daily 21 thru 23 mar in areas bound by: a. 34-55N 120-56W, 34-56N…
  42. HYDROPAC 477/072007-03-14 → 2007-03-19
    Hazardous operations 2230Z to 0400Z commencing daily 19 thru 22 mar in area bound by 09-06.0N 167-34.2E,…
  43. HYDROPAC 426/072007-03-08 → 2007-03-09
    Hazardous operations 090100Z to 091100Z mar within ten miles of 16-01N 146-04E
  44. NAVAREA XII 58/072007-03-06 → 2007-03-07
    Hazardous operations 06 mar within 20 miles of 23-22N 150-15W
  45. NAVAREA XII 53/072007-03-02 → 2007-03-06
    Gunnery exercises within 40 miles of: a. 29-59.8N 126-51.4W 032200Z to 040200Z mar
  46. HYDROPAC 387/072007-03-02 → 2007-03-06
    Gunnery exercises within 40 miles of: a. 29-59.8N 126-51.4W 032200Z to 040200Z mar
  47. HYDROPAC 339/072007-02-25 → 2007-03-02
    Hazardous operations 0001Z to 1200Z commencing daily 26 feb thru 02 mar within ten miles of 16-01N 146-04E
  48. HYDROPAC 334/072007-02-24 → 2007-03-31
    Gunnery exercises 2300Z to 0900Z commencing daily 28 feb thru 30 mar in area bound by 27-55-15N 144-57-48E,…
  49. HYDROPAC 319/072007-02-22 → 2007-03-02
    Hazardous operations 0001Z to 1200Z daily 26 feb thru 02 mar within ten miles of 16-01N 146-04E
  50. HYDROPAC 301/072007-02-18 → 2007-02-24
    Hazardous operations 2200Z to 1300Z commencing daily 19 thru 23 feb within ten miles of 16-01N 146-04E

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 78 · seahazards