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
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25
26

By month (all years)

J
F
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M
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J
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S
O
N
D

Other hazards in the North Pacific Ocean

Archive · 4,620 cancelled

  1. HYDROPAC 149/991999-02-24 → 1999-02-25
    Hazardous operations 0221Z to 0402Z daily 01 thru 05 mar in areas bound by: a. 35-38N 123-28W, 36-23N…
  2. NAVAREA XII 55/991999-02-24 → 1999-02-25
    Hazardous operations 0221Z to 0402Z daily 01 thru 05 mar in areas bound by: a. 35-38N 123-28W, 36-23N…
  3. NAVAREA XII 50/991999-02-18 → 1999-02-23
    Hazardous operations 0940Z to 1210Z daily 23 and 24 feb in areas bound by: a. 34-28N 120-40W, 34-29N…
  4. NAVAREA XII 47/991999-02-16 → 1999-02-21
    Hazardous operations 181500Z to 190001Z and 201800Z to 210001Z feb in area bound by 32-50-42N 118-29-18W,…
  5. NAVAREA XII 42/991999-02-10 → 1999-02-15
    Hazardous operations 0949Z to 1219Z daily 12 thru 16 feb in areas bound by: a. 34-28N 120-40W, 34-29N…
  6. NAVAREA XII 41/991999-02-09 → 1999-02-12
    Hazardous operations 2300Z to 0100Z commencing daily 10 and 11 feb in areas: a. bound by 31-10N 117-35W,…
  7. NAVAREA XII 38/991999-02-05 → 1999-02-10
    Hazardous operations 1800Z to 2000Z daily 09 and 10 feb in areas bound by: a. 31-10N 117-35W, 31-10N…
  8. HYDROPAC 102/991999-02-05 → 1999-02-10
    Hazardous operations 0701Z to 1601Z daily 10 thru 12 feb in areas bound by: a. 09-16N 167-21E, 09-23N…
  9. NAVAREA XII 35/991999-02-05 → 1999-02-12
    Hazardous operations 0745Z to 1501Z daily 10 thru 13 feb in areas bound by: a. 34-49N 121-02W, 34-50N…
  10. NAVAREA XII 33/991999-02-03 → 1999-02-08
    Hazardous operations 1000Z to 1200Z daily 07 and 08 feb in areas bound by: a. 34-28N 120-40W, 34-29N…
  11. NAVAREA XII 32/991999-02-03 → 1999-02-07
    Hazardous operations 2100Z to 0100Z commencing daily 05 and 06 feb in area bound by 32-56.5N 119-07.6W,…
  12. NAVAREA XII 24/991999-01-27 → 1999-01-28
    Hazardous operations 1005Z to 1149Z daily 28 and 29 jan in areas bound by: a. 34-28N 120-40W, 34-29N…
  13. NAVAREA XII 19/991999-01-22 → 1999-01-27
    Hazardous operations 1009Z to 1149Z daily 26 thru 28 jan in areas bound by: a. 34-28N 120-40W, 34-29N…
  14. NAVAREA XII 16/991999-01-19 → 1999-01-22
    Hazardous operations 1009Z to 1149Z daily 20 thru 22 jan in areas bound by: a. 34-28N 120-40W, 34-29N…
  15. NAVAREA XII 15/991999-01-18 → 1999-01-20
    Hazardous operations 201009Z to 201149Z jan in areas bound by: a. 34-28N 120-40W, 34-29N 120-46W, 34-46N…
  16. NAVAREA XII 10/991999-01-11 → 1999-01-15
    Hazardous operations 2100Z to 2359Z daily 13 and 14 jan in area bound by 32-58.2N 118-42.8W, 32-55.4N…
  17. NAVAREA XII 5/991999-01-07 → 1999-01-18
    Hazardous operations 1009Z to 1149Z daily 14 thru 19 jan in areas bound by: a. 34-28N 120-40W, 34-29N…
  18. HYDROPAC 611/931993-07-08 → 1993-07-20
    Hazardous operations 08 thru 19 jul in area bound by 18-14N 148-38E, 18-47N 149-43E, 18-16N 150-03E, 17-40N…
  19. NAVAREA XII 519/931993-07-07 → 1993-07-14
    Hazardous operations 140130Z to 140900Z jul in areas bound by: a. 35-13N 121-59W, 35-02N 120-46W, 34-45N…
  20. HYDROPAC 610/931993-07-07 → 1993-07-14
    Hazardous operations 140130Z to 140900Z jul in areas bound by: a. 35-13N 121-59W, 35-02N 120-46W, 34-45N…

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 93 · seahazards