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
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S
O
N
D

Other hazards in the North Pacific Ocean

Archive · 4,620 cancelled

  1. HYDROPAC 896/022002-05-14 → 2002-05-15
    Hazardous operations 0701Z to 1601Z daily 16 and 17 may in areas bound by: a. 11-10N 167-35E, 11-21N…
  2. HYDROPAC 895/022002-05-14 → 2002-05-15
    Hazardous operations 0731Z to 1501Z daily 16 and 17 may in area bound by 12-13N 171-22E, 13-10N 172-53E,…
  3. NAVAREA XII 136/022002-05-14 → 2002-05-15
    Hazardous operations 0731Z to 1501Z daily 16 and 17 may in areas bound by: a. 34-48N 120-59W, 34-49N…
  4. HYDROPAC 876/022002-05-10 → 2002-05-14
    Hazardous operations 0701Z to 1601Z daily 15 thru 17 may in areas bound by: a. 11-10N 167-35E, 11-21N…
  5. HYDROPAC 875/022002-05-10 → 2002-05-14
    Hazardous operations 0731Z to 1501Z daily 15 thru 17 may in area bound by 12-13N 171-22E, 13-10N 172-53E,…
  6. NAVAREA XII 134/022002-05-10 → 2002-05-14
    Hazardous operations 0731Z to 1501Z daily 15 thru 17 may in areas bound by: a. 34-48N 120-59W, 34-49N…
  7. HYDROPAC 835/022002-05-03 → 2002-05-07
    Hazardous operations 1700Z to 0100Z commencing daily 07 and 08 may in area bound by 19-21N 166-55E, 16-36N…
  8. HYDROPAC 825/022002-05-01 → 2002-05-03
    Hazardous operations 1700Z to 0100Z commencing daily 06 thru 08 may in area bound by 19-21N 166-55E, 16-36N…
  9. HYDROPAC 805/022002-04-29 → 2002-05-01
    Hazardous operations 1700Z to 0100Z commencing daily 03 thru 05 may in area bound by 19-21N 166-55E, 16-36N…
  10. NAVAREA XII 125/022002-04-29 → 2002-05-04
    Hazardous operations 0924Z to 1105Z daily 04 thru 06 may in areas bound by: a. 34-26N 120-41W, 34-28N…
  11. HYDROPAC 698/022002-04-16 → 2002-04-17
    Hazardous operations 1700Z to 0100Z commencing daily 17 thru 18 apr in area bound by 19-21N 166-55E, 16-36N…
  12. HYDROPAC 676/022002-04-12 → 2002-04-16
    Hazardous operations 1700Z to 0100Z commencing daily 16 thru 18 apr in area bound by 19-21N 166-55E, 16-36N…
  13. HYDROPAC 673/022002-04-11 → 2002-04-12
    Hazardous operations 1700Z to 0100Z commencing daily 14 thru 17 apr in area bound by 19-21N 166-55E, 16-36N…
  14. HYDROPAC 666/022002-04-09 → 2002-04-11
    Hazardous operations 1700Z to 0100Z commencing daily 14 thru 17 apr in area bound by 19-21N 166-55E, 16-36N…
  15. HYDROPAC 626/022002-04-03 → 2002-04-08
    Hazardous operations 0701Z to 1601Z daily 08 thru 10 apr in areas bound by: a. 09-17N 167-23E, 09-23N…
  16. NAVAREA XII 95/022002-04-03 → 2002-04-08
    Hazardous operations 0731Z to 1501Z daily 08 thru 10 apr in areas bound by: a. 34-48N 121-01W, 34-50N…
  17. HYDROPAC 579/022002-03-27 → 2002-03-31
    Hazardous operations 1725Z to 1925Z daily 30 and 31 mar within 108 miles of 24-23N 161-46E
  18. HYDROPAC 565/022002-03-25 → 2002-03-27
    Hazardous operations 260130Z to 260330Z, 260600Z to 260800Z, 270200Z to 270400Z and 270630Z to 270830Z mar…
  19. HYDROPAC 563/022002-03-25 → 2002-04-01
    Gunnery exercises in progress until 31 mar within ten miles of 16-01N 146-04E
  20. HYDROPAC 554/022002-03-24 → 2002-03-25
    Hazardous operations 252045Z to 252345Z, 260215Z to 260445Z, 262030Z to 262330Z, 270200Z to 270400Z, 272200Z…
  21. HYDROPAC 484/022002-03-17 → 2002-03-22
    Hazardous operations 172200Z to 221200Z mar in area bound by 13-10N 144-45E, 11-00N 144-45E, 11-00N 143-00E,…
  22. HYDROPAC 440/022002-03-11 → 2002-03-16
    Hazardous operations 0200Z to 0830Z daily 16 thru 18 mar in area bound by 08-51N 166-30E, 08-43N 167-43E,…
  23. HYDROPAC 439/022002-03-11 → 2002-03-16
    Hazardous operations 0001Z to 0830Z daily 16 thru 18 mar in area bound by 12-00N 163-48E, 12-00N 162-00E,…
  24. NAVAREA XII 72/022002-03-11 → 2002-03-16
    Hazardous operations 0131Z to 0701Z daily 16 thru 18 mar in areas bound by: a. 34-51N 120-57W, 34-53N…
  25. NAVAREA XII 65/022002-02-28 → 2002-03-01
    Hazardous operations 011051Z to 011354Z mar, alternate 021021Z to 021324Z mar in area bound by 15-14N…
  26. NAVAREA XII 57/022002-02-23 → 2002-02-27
    Hazardous operations 281148Z to 281514Z feb, alternate 011121Z to 011444Z mar in area bound by 15-14N…
  27. HYDROPAC 294/022002-02-15 → 2002-02-17
    Hazardous operations 171730Z to 172130Z feb in area bound by 19-21N 166-55E, 16-36N 168-18E, 12-00N 169-54E,…
  28. HYDROPAC 287/022002-02-15 → 2002-02-15
    Hazardous operations 1730Z to 2130Z daily 16 and 17 feb in area bound by 19-21N 166-55E, 16-36N 168-18E,…
  29. HYDROPAC 263/022002-02-12 → 2002-02-12
    Hazardous operations 1730Z to 2130Z daily 15 thru 17 feb in area bound by 19-21N 166-55E, 16-36N 168-18E,…
  30. HYDROPAC 254/022002-02-11 → 2002-02-15
    Hazardous operations 1730Z to 2130Z daily 15 thru 17 feb in area bound by 19-21N 166-55E, 16-36N 168-18E,…
  31. NAVAREA XII 45/022002-02-09 → 2002-02-11
    Hazardous operations 1730Z to 1901Z daily 09 thru 12 feb in areas bound by: a. 34-27N 120-40W, 34-29N…
  32. NAVAREA XII 39/022002-02-04 → 2002-02-09
    Hazardous operations 1730Z to 1901Z daily 08 thru 11 feb in areas bound by: a. 34-27N 120-40W, 34-29N…
  33. HYDROPAC 180/022002-01-29 → 2002-02-04
    Hazardous operations 030234Z to 030350Z feb, alternate 0344Z to 0425Z daily 04 thru 28 feb in areas bound…
  34. HYDROPAC 161/022002-01-27 → 2002-02-28
    Gunnery exercises 2300Z to 0900Z commencing daily 31 jan thru 27 feb in area bound by 27-55N 144-58E, 25-00N…
  35. NAVAREA XII 29/022002-01-21 → 2002-01-28
    Hazardous operations 252200Z to 260300Z jan, alternate 2200Z to 0300Z commencing daily 26 and 27 jan in area…
  36. NAVAREA XII 377/012001-12-08 → 2001-12-14
    Hazardous operations 1730Z to 0100Z commencing daily 13 thru 17 dec in areas: a. between 34-51N 34-52N and…
  37. NAVAREA XII 369/012001-12-04 → 2001-12-07
    Hazardous operations 1428Z to 1619Z daily 07 thru 10 dec in areas bound by: a. 34-32N 120-39W, 34-33N…
  38. HYDROPAC 1966/012001-12-03 → 2001-12-04
    Hazardous operations 0200Z to 0830Z daily 04 thru 06 dec in area bound by 08-51N 166-30E, 08-43N 167-43E,…
  39. HYDROPAC 1965/012001-12-03 → 2001-12-04
    Hazardous operations 0001Z to 0830Z daily 04 thru 06 dec in area bound by 12-00N 163-48E, 12-00N 162-00E,…
  40. NAVAREA XII 367/012001-12-03 → 2001-12-04
    Hazardous operations 0131Z to 0701Z daily 04 thru 06 dec in areas bound by: a. 34-51N 120-57W, 34-53N…
  41. HYDROPAC 1962/012001-12-02 → 2001-12-03
    Hazardous operations 030001Z to 030830Z dec, alternate 040001Z to 040830Z dec in area bound by 12-00N…
  42. NAVAREA XII 366/012001-12-02 → 2001-12-03
    Hazardous operations 1801Z to 2201Z daily 02 thru 03 dec in areas bound by: a. 34-51N 120-57W, 34-53N…
  43. HYDROPAC 1942/012001-11-28 → 2001-12-02
    Hazardous operations 0001Z to 0830Z daily 02 thru 04 dec in area bound by 12-00N 163-48E, 12-00N 162-00E,…
  44. NAVAREA XII 362/012001-11-28 → 2001-12-02
    Hazardous operations 0131Z to 0701Z daily 02 thru 04 dec in areas bound by: a. 34-51N 120-57W, 34-53N…
  45. HYDROPAC 1938/012001-11-28 → 2001-12-03
    Hazardous operations 020200Z to 020830Z dec, alternate 0200Z to 0830Z daily 03 and 04 dec in area bound by…
  46. HYDROPAC 1906/012001-11-24 → 2001-11-28
    Hazardous operations 0001Z to 0830Z daily 30 nov thru 03 dec in area bound by 12-00N 163-48E, 12-00N…
  47. NAVAREA XII 355/012001-11-24 → 2001-11-28
    Hazardous operations 0131Z to 0701Z daily 30 nov thru 03 dec in areas bound by: a. 34-51N 120-57W, 34-53N…
  48. HYDROPAC 1904/012001-11-24 → 2001-11-28
    Hazardous operations 300200Z to 300830Z nov, alternate 0200Z to 0830Z daily 01 and 02 dec in area bound by…
  49. HYDROPAC 1846/012001-11-15 → 2001-11-20
    Hazardous operations 200001Z to 200245Z nov in area bound by 08-51N 166-30E, 08-43N 167-43E, 07-51N 166-52E
  50. NAVAREA XII 325/012001-11-05 → 2001-11-07
    Hazardous operations 0731Z to 1501Z daily 07 thru 09 nov in areas bound by: a. 34-49N 121-01W, 34-50N…

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.