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. HYDROPAC 359/052005-02-25 → 2005-03-31
    Gunnery exercises 2300Z to 0900Z commencing daily 28 feb to 30 mar in area bound by 27-55-15N 144-57-48E,…
  2. HYDROPAC 342/052005-02-24 → 2005-02-25
    Gunnery exercises 2300Z to 0900Z commencing daily 28 feb thru 30 mar in area bound by 27-55-15N 144-57-48E,…
  3. HYDROPAC 339/052005-02-24 → 2005-02-26
    Hazardous operations 260809Z to 261007Z feb, alternate 0809Z to 1007Z daily 25 feb thru 09 mar in areas…
  4. HYDROPAC 333/052005-02-23 → 2005-02-24
    Gunnery exercises 231900Z to 240900Z feb in area bound by 13-10N 144-43E, 13-10N 144-30E, 12-45N 144-30E,…
  5. HYDROPAC 319/052005-02-22 → 2005-02-23
    Gunnery exercises 231900Z to 240900Z feb in area bound by 13-10N 144-43E, 13-10N 144-30E, 12-45N 144-30E,…
  6. HYDROPAC 308/052005-02-19 → 2005-02-22
    Hazardous operations 240807Z to 241007Z feb, alternate 0807Z to 1007Z daily 25 feb thru 09 mar in areas…
  7. HYDROPAC 302/052005-02-18 → 2005-02-20
    Hazardous operations 192000Z to 200700Z feb in areas bound by: 19-00N 173-30E, 19-00N 174-00E, 18-30N…
  8. HYDROPAC 301/052005-02-18 → 2005-02-19
    Hazardous operations 182000Z to 190700Z feb in areas bound by: 18-00N 165-30E, 17-30N 165-30E, 17-30N…
  9. HYDROPAC 271/052005-02-12 → 2005-02-16
    Hazardous operations 2000Z to 1359Z feb commencing daily 14 thru 16 feb within 10 miles of 16-01N 146-04E
  10. HYDROPAC 259/052005-02-10 → 2005-02-28
    Hazardous operations 2000Z to 1359Z commencing daily 14 thru 16 feb and 2300Z to 1300Z commencing daily 18…
  11. HYDROPAC 258/052005-02-10 → 2005-02-15
    Hazardous operations 142000Z to 150700Z feb within ten miles of 14-00N 146-00E
  12. HYDROPAC 239/052005-02-07 → 2005-02-17
    Hazardous operations 0301Z to 1116Z daily 13 thru 17 feb in areas bound by: a. 08-54N 167-45E, 08-54N…
  13. HYDROPAC 226/052005-02-04 → 2005-02-04
    Hazardous operations 2300Z to 0400Z commencing daily 08 thru 11 feb within ten miles of 16-04N 146-04E
  14. HYDROPAC 224/052005-02-03 → 2005-02-12
    Hazardous operations 2300Z to 0400Z commencing daily 08 thru 11 feb within ten miles of 16-04N 146-04E
  15. HYDROPAC 210/052005-02-01 → 2005-02-01
    Gunnery exercises 020600Z to 020900Z feb in area bound by 13-10N 144-43E, 12-45N 144-45E, 11-00N 144-45E,…
  16. HYDROPAC 205/052005-02-01 → 2005-02-02
    Gunnery exercises 020600Z to 020900Z feb in area bound by 13-10N 144-43E, 13-10N 144-30E, 12-45N 144-30E,…
  17. HYDROPAC 189/052005-01-29 → 2005-02-04
    Hazardous operations 0200Z to 0330Z daily 03 and 04 feb within 216 miles of 31-55N 153-45E
  18. HYDROPAC 83/052005-01-13 → 2005-01-12
    Gunnery exercises 112200Z to 120400Z jan in area bound by 13-10N 144-43E, 13-10N 144-30E, 12-45N 144-30E,…
  19. HYDROPAC 39/052005-01-07 → 2005-01-14
    Hazardous operations 0130Z to 0600Z daily 11 thru 14 jan within ten miles of 16-01N 146-04E
  20. HYDROPAC 1975/042004-12-28 → 2004-12-29
    Gunnery exercises 290700Z to 291200Z dec in area bound by 13-10N 144-43E, 13-10N 144-30E, 12-45N 144-30E,…
  21. HYDROPAC 1970/042004-12-27 → 2005-01-31
    Gunnery exercises 2300Z to 0900Z commencing daily 31 dec to 30 jan 05 in area bound by 27-55-15N 144-57-48E,…
  22. HYDROPAC 1951/042004-12-22 → 2004-12-28
    Hazardous operations 280500Z to 281100Z dec within ten miles of 16-01N 146-04E
  23. HYDROPAC 1904/042004-12-13 → 2004-12-13
    Hazardous operations 0101Z to 0916Z daily 12 thru 16 dec in areas bound by: a. 08-54N 167-45E, 08-54N…
  24. HYDROPAC 1897/042004-12-11 → 2004-12-16
    Hazardous operations 0101Z to 0916Z daily 12 thru 16 dec in areas bound by: a. 08-54N 167-45E, 08-54N…
  25. HYDROPAC 1889/042004-12-10 → 2004-12-16
    Hazardous operations 0101Z to 0716 daily 12 thru 16 dec in areas bound by: a. 08-54N 167-45E, 08-54N…
  26. HYDROPAC 1887/042004-12-09 → 2004-12-11
    Hazardous operations 0101Z to 0701Z daily 10 thru 13 dec in areas bound by: a. 08-54N 167-45E, 08-54N…
  27. NAVAREA XII 302/042004-11-10 → 2004-11-19
    Hazardous operations 2200Z to 2359Z daily 15 thru 18 nov in areas bound by: a. 33-04N 125-37W, 33-50N…
  28. HYDROPAC 1755/042004-11-06 → 2004-11-11
    Hazardous operations 1300Z to 1600Z and 1800Z to 2030Z daily 08 thru 11 nov in area bound by 28-28N 167-49E,…
  29. NAVAREA XII 290/042004-11-05 → 2004-11-11
    Hazardous operations 091737Z to 091914Z nov, alternate 111737Z to 111914Z nov in areas bound by: a. 35-32N…
  30. HYDROPAC 1751/042004-11-05 → 2004-11-06
    Hazardous operations 061230Z to 061630Z nov in area bound by 28-28N 167-49E, 37-42N 164-13E, 38-15N 166-17E,…
  31. NAVAREA XII 287/042004-11-05 → 2004-11-05
    Hazardous operations 091507Z to 091914Z nov, alternate 111507Z to 111914Z nov in areas bound by: a. 35-32N…
  32. NAVAREA XII 285/042004-11-04 → 2004-11-05
    Hazardous operations 091809Z to 091816Z nov, alternate 111809Z to 111816Z nov in areas bound by: a. 35-32N…
  33. NAVAREA XII 283/042004-11-03 → 2004-11-05
    Hazardous operations 0700Z to 1400Z daily 04 and 05 nov in areas: a. bound by 35-39N 129-38W, 36-28N…
  34. NAVAREA XII 282/042004-11-03 → 2004-11-04
    Hazardous operations 091724Z to 091916Z nov, alternate 111719Z to 111916Z nov in areas bound by: a. 35-32N…
  35. HYDROPAC 1703/042004-10-30 → 2004-11-02
    Hazardous operations 1230Z to 1630Z daily 29 oct thru 02 nov in area bound by 28-28N 167-49E, 37-42N…
  36. NAVAREA XII 280/042004-10-29 → 2004-11-03
    Hazardous operations 041745Z to 041920Z nov in areas bound by: a. 35-32N 123-16W, 36-26N 123-09W, 36-24N…
  37. NAVAREA XII 277/042004-10-27 → 2004-10-28
    Hazardous operations 281816Z to 281822Z oct in areas bound by: a. 35-32N 123-16W, 36-26N 123-09W, 36-24N…
  38. NAVAREA XII 273/042004-10-26 → 2004-10-27
    Hazardous operations 281743Z to 281921Z oct in areas bound by: a. 35-32N 123-16W, 36-26N 123-09W, 36-24N…
  39. HYDROPAC 1669/042004-10-22 → 2004-10-31
    Gunnery exercises 2300Z to 0900Z 25 thru 27 oct, alternate 2300Z to 0900Z 28 thru 30 oct in area bound by…
  40. NAVAREA XII 268/042004-10-21 → 2004-10-26
    Hazardous operations 1743Z to 1921Z 26 and 28 oct in areas bound by: a. 35-32N 123-16W, 36-26N 123-09W,…
  41. HYDROPAC 1624/042004-10-15 → 2004-10-18
    Hazardous operations 172130Z to 180100Z oct in area bound by 16-46N 167-22E, 17-21N 169-54E, 16-03N 170-14E,…
  42. HYDROPAC 1605/042004-10-11 → 2004-10-18
    Hazardous operations: a. 160001Z to 160200Z oct in area bound by 13-20N 154-52E, 12-02N 155-18E, 12-47N…
  43. HYDROPAC 1571/042004-10-02 → 2004-10-09
    Hazardous operations 1657Z to 2028Z 06 thru 09 oct in area bound by 20-00N 167-46E, 12-00N 169-53E, 10-15N…
  44. HYDROPAC 1540/042004-09-27 → 2004-10-31
    Gunnery exercises 2300Z to 0900Z commencing daily 30 sep thru 30 oct in area bound by 27-55-15N 144-57-48E,…
  45. HYDROPAC 1523/042004-09-23 → 2004-09-30
    Hazardous operations 1709Z to 2022Z 28 thru 30 sep in area bound by 19-23N 167-46E, 12-00N 169-53E, 10-15N…
  46. HYDROPAC 1496/042004-09-18 → 2004-09-20
    Hazardous operations 192100Z to 200300Z sep, alternate 212100Z to 220300Z and 232100Z to 240300Z sep in area…
  47. NAVAREA XII 241/042004-09-15 → 2004-09-15
    Hazardous operations 140501Z to 151501Z sep in area bound by 34-54N 120-41W, 34-54N 120-38W, 34-52N 120-37W,…
  48. HYDROPAC 1474/042004-09-13 → 2004-09-17
    Hazardous operations 0630Z to 1330Z daily 07, 16 and 17 sep in areas bound by: a. 09-24N 167-28E, 13-12N…
  49. HYDROPAC 1467/042004-09-10 → 2004-09-17
    Hazardous operations 0701Z to 1501Z daily 15 thru 17 sep in areas bound by: a. 10-51N 172-09E, 11-15N…
  50. HYDROPAC 1436/042004-09-05 → 2004-09-13
    Hazardous operations 060630Z to 061230Z sep, alternate 0630Z to 1230Z daily 07, 09 thru 13 sep in areas…

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 83 · seahazards