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. NAVAREA XII 334/991999-09-28 → 1999-10-03
    Hazardous operations 0130Z to 0730Z daily 03 thru 05 oct in areas bound by: a. 34-48N 120-56W, 34-51N…
  2. NAVAREA XII 331/991999-09-25 → 1999-09-29
    Hazardous operations 281800Z to 281900Z and 282200Z to 282300Z sep in areas: a. bound by 31-00N 118-25W,…
  3. NAVAREA XII 324/991999-09-21 → 1999-09-24
    Hazardous operations 1751Z to 1951Z daily 24 thru 27 sep in areas bound by: a. 34-09N 120-42W, 34-10N…
  4. NAVAREA XII 323/991999-09-21 → 1999-09-27
    Hazardous operations 240300Z to 240900Z sep, alternate 0300Z to 0900Z daily 25 thru 27 sep in area bound by…
  5. NAVAREA XII 319/991999-09-17 → 1999-09-24
    Hazardous operations 1500Z to 0100Z commencing daily 22 and 23 sep in areas bound by: a. 31-10N 117-35W,…
  6. HYDROPAC 948/991999-09-14 → 1999-09-19
    Hazardous operations 172000Z to 172300Z, 182000Z to 182300Z, 180200Z to 180600Z and 190200Z to 190600Z sep…
  7. HYDROPAC 947/991999-09-14 → 1999-09-17
    Hazardous operations 162200Z to 170100Z and 170300Z to 170700Z sep in area bound by 51-13N 153-28E, 51-48N…
  8. HYDROPAC 871/991999-09-01 → 1999-09-07
    Hazardous operations 061730Z to 062130Z sep, alternate 1730Z to 2130Z daily 07 and 08 sep in area bound by…
  9. HYDROPAC 802/991999-08-16 → 1999-08-22
    Hazardous operations 0746Z to 1646Z daily 20 thru 22 aug in areas bound by: a. 09-01N 168-11E, 09-00N…
  10. NAVAREA XII 279/991999-08-16 → 1999-08-22
    Hazardous operations 0816Z to 1546Z daily 20 thru 22 aug in areas bound by: a. 34-48N 121-00W, 34-50N…
  11. NAVAREA XII 247/991999-07-21 → 1999-07-28
    Hazardous operations 261700Z to 270400Z and 271700Z to 280400Z jul in area bound by 22-10N 160-00W, 22-15N…
  12. NAVAREA XII 246/991999-07-21 → 1999-08-03
    Hazardous operations 291630Z to 291800Z jul and 031630Z to 031800Z aug in area bound by 35-45N 123-55W,…
  13. NAVAREA XII 244/991999-07-20 → 1999-07-22
    Hazardous operations 201900Z to 210300Z and 211900Z to 220300Z jul in areas bound by: a. 31-00N 118-25W,…
  14. NAVAREA XII 236/991999-07-14 → 1999-07-20
    Hazardous operations 1500Z to 1900Z daily 19 and 20 jul in areas bound by: a. 31-10N 117-35W, 31-10N…
  15. NAVAREA XII 229/991999-07-07 → 1999-07-15
    Hazardous operations 1800Z to 0400Z commencing daily 12 and 14 jul in area bound by 22-10N 160-00W, 22-15N…
  16. NAVAREA XII 213/991999-06-25 → 1999-07-01
    Hazardous operations 301800Z to 302300Z jun in area bound by 22-00N 159-50W, 22-05N 160-25W, 23-45N 162-40W,…
  17. NAVAREA XII 210/991999-06-23 → 1999-06-30
    Hazardous operations 281700Z to 281800Z, 282330Z to 290030Z, 291800Z to 291900Z and 292359Z to 300100Z jun…
  18. HYDROPAC 544/991999-06-18 → 1999-06-24
    Hazardous operations 0701Z to 1601Z daily 23 thru 25 jun in areas bound by: a. 09-16N 167-21E, 09-23N…
  19. NAVAREA XII 205/991999-06-18 → 1999-06-24
    Hazardous operations 0731Z to 1501Z daily 23 thru 25 jun in areas bound by: a. 34-48N 121-00W, 34-50N…
  20. NAVAREA XII 203/991999-06-18 → 1999-06-24
    Hazardous operations 221700Z to 222000Z, and 1600Z to 1800Z daily 23 and 24 jun in area bound by 32-59.8N…
  21. NAVAREA XII 196/991999-06-14 → 1999-06-20
    Hazardous operations 0145Z to 0325Z daily 19 thru 21 jun in areas bound by: a. 34-24N 120-38W, 34-25N…
  22. NAVAREA XII 190/991999-06-11 → 1999-06-17
    Hazardous operations 0100Z to 0500Z daily 16 and 17 jun in area bound by 33-08-04N 118-55-30W, 33-08-04N…
  23. NAVAREA XII 175/991999-05-27 → 1999-05-28
    Hazardous operations 281615Z to 281715Z may in area bound by 35-45N 123-55W, 35-14N 123-34W, 35-27N 123-00W,…
  24. NAVAREA XII 171/991999-05-25 → 1999-05-28
    Hazardous operations 271048Z to 271253Z may, alternate 281056Z to 281450Z may within 105 miles of a…
  25. HYDROPAC 461/991999-05-24 → 1999-05-28
    Hazardous operations 271048Z to 271253Z may, alternate 281056Z to 281450Z may within 105 miles of a…
  26. HYDROPAC 460/991999-05-24 → 1999-05-24
    Hazardous operations 271104Z to 271249Z may, alternate 281056Z to 281450Z may within 105 miles of a…
  27. NAVAREA XII 170/991999-05-24 → 1999-05-25
    Hazardous operations 271104Z to 271249Z may, alternate 281056Z to 281450Z may within 105 miles of a…
  28. HYDROPAC 457/991999-05-24 → 1999-05-24
    Hazardous operations 271108Z to 271253Z may, alternate 281056Z to 281450Z may within 105 miles of a…
  29. NAVAREA XII 168/991999-05-24 → 1999-05-24
    Hazardous operations 271108Z to 271253Z may, alternate 281056Z to 281450Z may within 105 miles of a…
  30. NAVAREA XII 158/991999-05-17 → 1999-05-22
    Hazardous operations 0631Z to 1200Z daily 22 thru 24 may in areas bound by: a. 34-23N 120-26W, 34-22N…
  31. HYDROPAC 414/991999-05-14 → 1999-05-14
    Hazardous operations 201351Z to 201534Z may, alternate 211327Z to 211512Z may within 105 miles of a…
  32. NAVAREA XII 152/991999-05-14 → 1999-05-14
    Hazardous operations 201351Z to 201534Z may, alternate 211327Z to 211512Z may within 105 miles of a…
  33. HYDROPAC 407/991999-05-13 → 1999-05-18
    Hazardous operations 0435Z to 0615Z daily 18 and 19 may in areas bound by: a. 35-40N 123-30W, 36-23N…
  34. NAVAREA XII 150/991999-05-13 → 1999-05-18
    Hazardous operations 0435Z to 0615Z daily 18 and 19 may in areas bound by: a. 35-40N 123-30W, 36-23N…
  35. NAVAREA XII 138/991999-05-03 → 1999-05-05
    Hazardous operations 0631Z to 1200Z daily 08 thru 10 may in areas bound by: a. 34-23N 120-26W, 34-22N…
  36. NAVAREA XII 136/991999-05-03 → 1999-05-03
    Hazardous operations 0631Z to 1200Z daily 07 thru 10 may in areas bound by: a. 34-23N 120-26W, 34-22N…
  37. NAVAREA XII 124/991999-04-23 → 1999-04-27
    Hazardous operations 1751Z to 1951Z daily 27 thru 29 apr in areas bound by: a. 34-15N 120-41W, 34-16N…
  38. NAVAREA XII 123/991999-04-23 → 1999-04-26
    Hazardous operations 261430Z to 261930Z apr in area bound by 33-08.0N 118-51.5W, 33-08.2N 118-32.7W,…
  39. HYDROPAC 329/991999-04-23 → 1999-04-23
    Hazardous operations 261430Z to 261930Z apr in area bound by 33-08.1N 118-51.5W, 33-08.2N 118-32.7W,…
  40. HYDROPAC 297/991999-04-14 → 1999-04-15
    Hazardous operations 0435Z to 0614Z daily 19 thru 21 apr in areas bound by: a. 35-40N 123-30W, 36-23N…
  41. NAVAREA XII 113/991999-04-14 → 1999-04-15
    Hazardous operations 0435Z to 0614Z daily 19 thru 21 apr in areas bound by: a. 35-40N 123-30W, 36-23N…
  42. NAVAREA XII 110/991999-04-12 → 1999-04-15
    Hazardous operations 1802Z to 1934Z daily 15 thru 17 apr in areas bound by: a. 34-33N 120-48W, 34-36N…
  43. NAVAREA XII 94/991999-03-27 → 1999-04-01
    Hazardous operations 011500Z to 012200Z apr in areas: a. between 30-25N 31-00N and 117-40W 118-25W
  44. NAVAREA XII 87/991999-03-23 → 1999-03-25
    Hazardous operations 251930Z to 252100Z mar in area bound by 32-36-55N 118-56-57W, 32-43-34N 119-03-22W,…
  45. NAVAREA XII 83/991999-03-19 → 1999-03-26
    Hazardous operations 252200Z to 260100Z mar in areas bound by: a. 31-10N 117-35W, 31-10N 116-46W, 30-25N…
  46. NAVAREA XII 77/991999-03-15 → 1999-03-19
    Hazardous operations 191700Z to 191800Z and 192000Z to 192100Z mar in areas bound by: a. 31-00N 118-25W,…
  47. HYDROPAC 173/991999-03-04 → 1999-03-10
    Hazardous operations 0701Z to 1601Z daily 09 thru 11 mar in areas bound by: a. 11-50N 170-38E, 12-04N…
  48. NAVAREA XII 64/991999-03-04 → 1999-03-10
    Hazardous operations 0731Z to 1501Z daily 09 thru 11 mar in areas bound by: a. 34-48N 121-02W, 34-49N…
  49. NAVAREA XII 57/991999-02-25 → 1999-03-05
    Hazardous operations 0221Z to 0402Z daily 02 thru 05 mar in areas bound by: a. 35-38N 123-28W, 36-23N…
  50. HYDROPAC 150/991999-02-25 → 1999-03-05
    Hazardous operations 0221Z to 0402Z daily 02 thru 05 mar in areas bound by: a. 35-38N 123-28W, 36-23N…

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 92 · seahazards