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 1221/052005-08-01 → 2005-08-31
    Gunnery exercises in progress 2300Z to 0900Z commencing daily until 30 aug in area bound by 27-55-15N…
  2. HYDROPAC 1220/052005-08-01 → 2005-08-07
    Hazardous operations 052300Z to 060030Z and 062300Z to 070030Z aug within 354 miles of 35-12N 150-39E
  3. HYDROPAC 1182/052005-07-26 → 2005-08-03
    Hazardous operations 2200Z to 1400Z commencing daily 26 jul thru 03 aug within 10 miles of 16-01N 146-04E
  4. HYDROPAC 1162/052005-07-21 → 2005-07-22
    Hazardous operations 212200Z to 212330Z jul within six miles of 30-38N 177-53E
  5. HYDROPAC 1131/052005-07-14 → 2005-07-14
    Hazardous operations 172230Z to 181359Z jul within ten miles of 16-01N 146-04E
  6. HYDROPAC 1125/052005-07-14 → 2005-07-17
    Hazardous operations 2230Z to 1359Z commencing daily 13 thru 16 jul within ten miles of 16-01N 146-04E
  7. HYDROPAC 1122/052005-07-13 → 2005-07-14
    Hazardous operations 2230Z to 1359Z commencing daily 13 thru 16 jul within ten miles of 16-01N 146-04E
  8. NAVAREA XII 205/052005-07-13 → 2005-07-14
    Hazardous operations 132300Z to 140001Z jul within six miles of 52-32N 140-47W
  9. HYDROPAC 1093/052005-07-10 → 2005-07-17
    Hazardous operations 2000Z to 1400Z commencing daily 10 thru 16 jul within ten miles of 16-01N 146-04E
  10. NAVAREA XII 203/052005-07-08 → 2005-07-16
    Hazardous operations 11 jul in areas: a. bound by 03-34N 077-51W, 03-48N 077-24W, 04-02N 077-31W, 03-47N…
  11. HYDROPAC 1085/052005-07-08 → 2005-07-10
    Hazardous operations 100330Z to 100400Z jul, alternate 0330Z to 0400Z daily 11 thru 15 jul and 22 jul thru…
  12. HYDROPAC 1060/052005-07-05 → 2005-07-08
    Hazardous operations 060334Z to 060415Z jul, alternate 0334Z to 0415Z daily 07 thru 15 jul and 22 jul thru…
  13. HYDROPAC 1042/052005-07-01 → 2005-07-31
    Gunnery exercises 2300Z to 0900Z commencing daily 30 jun thru 30 jul in area bound by 27-55-15N 144-57-48E,…
  14. HYDROPAC 1017/052005-06-27 → 2005-07-01
    Gunnery exercises 2300Z to 0900Z commencing daily 30 jun thru 30 jul in area bound by 27-55-15N 144-57-48E,…
  15. HYDROPAC 1008/052005-06-26 → 2005-06-27
    Gunnery exercises 2300Z to 0900Z commencing daily 30 jun thru 30 jul in area bound by 27-55-15N 144-57-48E,…
  16. HYDROPAC 977/052005-06-20 → 2005-06-24
    Hazardous operations 2300Z to 1030Z commencing daily 21 thru 23 jun within ten miles of 16-01N 146-04E
  17. HYDROPAC 976/052005-06-20 → 2005-06-24
    Hazardous operations 2300Z to 0500Z commencing daily 19 thru 23 jun in area bound by 13-10N 144-43E, 13-10N…
  18. HYDROPAC 972/052005-06-19 → 2005-06-20
    Hazardous operations 2300Z to 0500Z commencing daily 19 thru 23 jun in area bound by 13-10N 144-43E, 13-10N…
  19. HYDROPAC 971/052005-06-19 → 2005-06-20
    Hazardous operations 2300Z to 1030Z commencing daily 21 thru 23 jun within ten miles of 16-01N 146-04E
  20. HYDROPAC 963/052005-06-17 → 2005-06-23
    Hazardous operations 1700Z to 2200Z daily 21 thru 23 jun a. within 50 miles of 36-29N 173-01E
  21. HYDROPAC 953/052005-06-15 → 2005-06-17
    Hazardous operations 2230Z to 1359Z commencing daily daily 13 thru 16 jun within ten miles of 16-01N 146-04E
  22. HYDROPAC 951/052005-06-14 → 2005-06-15
    Hazardous operations 2230Z to 1359Z daily 13 thru 16 jun within ten miles of 16-01N 146-04E
  23. HYDROPAC 947/052005-06-14 → 2005-06-15
    Hazardous operations 2230Z to 1359Z commencing daily 13 thru 17 jun within ten miles of 16-01N 146-04E
  24. HYDROPAC 922/052005-06-07 → 2005-06-30
    Gunnery exercises 2300Z to 0900Z commencing daily until 29 jun in area bound by 27-55-15N 144-57-48E,…
  25. HYDROPAC 871/052005-05-26 → 2005-06-03
    Hazardous operations 0701Z to 1501Z daily 01 thru 03 jun in areas bound by: a. 05-54N 165-06E, 07-00N…
  26. HYDROPAC 813/052005-05-18 → 2005-05-18
    Hazardous operations 190700Z to 190800Z may within ten miles of 16-01N 146-04E
  27. NAVAREA XII 163/052005-05-16 → 2005-05-20
    Hazardous operations 200952Z to 201132Z may, alternate 21 and 22 may
  28. NAVAREA XII 156/052005-05-13 → 2005-05-14
    Hazardous operations 140952Z to 141132Z may in areas bound by: a. 34-28N 120-39W, 34-30N 120-48W, 34-46N…
  29. NAVAREA XII 153/052005-05-12 → 2005-05-13
    Hazardous operations 130952Z to 131132Z may, alternate 140952Z to 141132Z may in areas bound by: a. 34-28N…
  30. NAVAREA XII 152/052005-05-12 → 2005-05-12
    Hazardous operations 130952Z to 131132Z may, alternate 140952Z to 141132Z may in areas bound by: a. 34-28N…
  31. HYDROPAC 766/052005-05-08 → 2005-05-09
    Gunnery exercises 090900Z to 091800Z may in area bound by 13-10N 144-43E, 13-10N 144-30E, 12-45N 144-30E,…
  32. HYDROPAC 741/052005-05-04 → 2005-05-06
    Hazardous operations 051900Z to 060430Z may within ten miles of 16-01N 146-04E
  33. NAVAREA XII 138/052005-05-02 → 2005-05-03
    Hazardous operations 0801Z to 1401Z daily 05 thru 07 may in areas bound by: a. 34-50N 121-03W, 34-52N…
  34. HYDROPAC 729/052005-05-02 → 2005-05-07
    Hazardous operations 0701Z to 1501Z daily 05 thru 07 may in areas bound by: a. 08-45N 163-46E, 08-24N…
  35. HYDROPAC 698/052005-04-27 → 2005-05-31
    Gunnery exercises 2300Z to 0900Z commencing daily 30 apr thru 30 may in area bound by 27-55-15N 144-57-48E,…
  36. HYDROPAC 666/052005-04-23 → 2005-04-28
    Hazardous operations 270701Z to 271501Z apr, alternate 0701Z to 1501Z daily 28 and 29 apr in areas bound by:…
  37. NAVAREA XII 119/052005-04-22 → 2005-04-27
    Hazardous operations 270701Z to 271501Z apr, alternate 0701Z to 1501Z daily 28 and 29 apr in areas bound by:…
  38. HYDROPAC 626/052005-04-14 → 2005-04-21
    Hazardous operations 1100Z to 1600Z daily 19 thru 21 apr in area bound by 52-30.0N 159-17.0E, 52-45.0N…
  39. HYDROPAC 613/052005-04-12 → 2005-04-19
    Gunnery exercises 141800Z to 142000Z apr, 151000Z to 151500Z apr, and 181800Z to 182300Z apr in area bound…
  40. HYDROPAC 607/052005-04-11 → 2005-04-13
    Gunnery exercises 121800Z to 130900Z apr in area bound by 13-10N 144-43E, 13-10N 144-30E, 12-45N 144-30E,…
  41. HYDROPAC 580/052005-04-07 → 2005-04-13
    Gunnery exercises 2300Z to 0400Z commencing daily 08 thru 12 apr within ten miles of 16-01N 146-04E
  42. HYDROPAC 568/052005-04-06 → 2005-04-08
    Hazardous operations 072100Z to 080001Z apr within ten miles of 16-01N 146-04E
  43. HYDROPAC 554/052005-04-05 → 2005-04-06
    Gunnery exercises 052100Z to 060001Z apr within ten miles of 16-01N 146-04E
  44. NAVAREA XII 91/052005-04-03 → 2005-04-08
    Hazardous operations 1700Z to 2230Z daily 06 thru 10 apr in area bound by 25-32N 172-26W, 24-54N 163-30W,…
  45. HYDROPAC 490/052005-03-25 → 2005-03-29
    Hazardous operations 290001Z to 290100Z within ten miles of 16-01N 146-04E
  46. HYDROPAC 485/052005-03-23 → 2005-03-30
    Gunnery exercises 2300Z to 0100Z commencing daily 28 and 29 mar in area bound by 52-30.0N 159-17.0E,…
  47. HYDROPAC 484/052005-03-23 → 2005-03-24
    Hazardous operations 212359Z to 220200Z mar, 230300Z to 230700Z mar, and 240500Z to 240900Z mar in area…
  48. NAVAREA XII 73/052005-03-22 → 2005-03-25
    Hazardous operations 0801Z to 1401Z daily 25 thru 27 mar in areas bound by: a. 34-50N 121-03W, 34-52N…
  49. NAVAREA XII 70/052005-03-20 → 2005-03-22
    Hazardous operations 0801Z to 1401Z daily 23 thru 25 mar in areas bound by: a. 34-50N 121-03W, 34-52N…
  50. HYDROPAC 472/052005-03-20 → 2005-03-25
    Hazardous operations 0701Z to 1501Z daily 23 thru 25 mar in areas bound by: a. 08-45N 163-46E, 08-24N…

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.