Military exercises in the North Pacific Ocean

Gunnery, firing and naval exercise areas.

in force
6
last 12 months
18
vs previous 12 (30)
-40%
since 1993
4,624

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 · 31 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 · 31 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 · 31 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 · 28 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 · 28 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
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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)

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F
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A
M
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J
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S
O
N
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Other hazards in the North Pacific Ocean

Archive · 4,618 cancelled

  1. NAVAREA XII 22/202020-01-19 → 2020-01-31
    Hazardous operations 221400Z to 230100Z jan, alternate 1400Z to 0100Z commencing daily 23, 24, 28, and 30…
    Eastern North Pacific · California
  2. NAVAREA XII 19/202020-01-17 → 2020-01-19
    Hazardous operations 221400Z to 230100Z jan, alternate 231400Z to 240100Z, 241400Z to 250100Z, 281400Z to…
    Eastern North Pacific · California
  3. NAVAREA XII 17/202020-01-15 → 2020-01-31
    Hazardous operations 201400Z to 210100Z jan, alternate 1400Z to 0100Z commencing daily 21 thru 24, 28 and 30…
    Eastern North Pacific · California
  4. NAVAREA XII 14/202020-01-14 → 2020-01-31
    Hazardous operations 191400Z to 200100Z, 231400Z to 240100Z, 241400Z to 250100Z, alternate 301400Z to…
    Eastern North Pacific · California
  5. NAVAREA XII 13/202020-01-14 → 2020-01-19
    Hazardous operations 171400Z to 180100Z jan, alternate 181400Z to 190100Z jan in area bound by 33-14N…
    Eastern North Pacific · California
  6. NAVAREA XII 12/202020-01-13 → 2020-01-15
    Hazardous operations 151945Z to 160015Z jan in area within 20 miles of 33-09N 120-27W
    Eastern North Pacific · California
  7. NAVAREA XII 8/202020-01-10 → 2020-01-20
    Hazardous operations 150100Z to 201400Z jan in areas within two miles of: a. 33-12N 120-00W b. 33-11N…
    Eastern North Pacific · California
  8. HYDROPAC 102/202020-01-09 → 2020-01-10
    Hazardous operations 092100Z to 100600Z jan in area bound by 13-10N 144-30E, 13-10N 144-42E, 12-50N 144-45E,…
    Western North Pacific · Guam
  9. NAVAREA XII 7/202020-01-07 → 2020-01-10
    Hazardous operations 081500Z to 081930Z jan, alternate 091500Z to 091845Z and 101500Z to 101930Z jan in area…
    Eastern North Pacific
  10. HYDROPAC 4262/192019-12-27 → 2020-01-31
    Gunnery exercises 2300Z to 0900Z commencing daily 31 dec thru 30 jan 20 in area bound by 28-15-15N…
    Western North Pacific
  11. NAVAREA XII 663/192019-12-27 → 2020-02-01
    Hazardous operations 010800Z jan to 010800Z feb 20 in area bound by 32-55-00N 118-25-00W, 32-55-00N…
    Eastern North Pacific · California
  12. NAVAREA XII 662/192019-12-27 → 2020-02-01
    Hazardous operations 010800Z jan to 010800Z feb 20 in area bound by 32-52-40N 119-12-01W, 33-08-04N…
    Eastern North Pacific · California
  13. NAVAREA XII 661/192019-12-27 → 2020-02-01
    Hazardous operations 010800Z jan to 010800Z feb 20 in area bound by 32-33N 118-25W, 32-35N 118-16W, 32-35N…
    Eastern North Pacific · California
  14. NAVAREA XII 649/192019-12-18 → 2019-12-18
    Hazardous operations 192000Z to 192300Z dec in area within 32 miles of 34-43N 121-57W
    Eastern North Pacific · California
  15. NAVAREA XII 648/192019-12-17 → 2019-12-21
    Hazardous operations 191500Z to 192300Z dec, alternate 201500Z to 202300Z dec in area within 33 miles of…
    Eastern North Pacific · California
  16. HYDROPAC 4149/192019-12-14 → 2019-12-16
    Hazardous operations 160500Z to 161100Z dec in areas within three miles of: a. 13-26N 145-08E
    Philippine Sea · Western North Pacific · Guam
  17. NAVAREA XII 643/192019-12-14 → 2019-12-21
    Hazardous operations 1900Z to 2300Z daily 19 and 20 dec in area bound by 30-55-00N 116-40-00W, 29-55-00N…
    Eastern North Pacific · Mexico
  18. NAVAREA XII 642/192019-12-14 → 2019-12-18
    Hazardous operations 192000Z to 192300Z dec in area within 15 miles of 34-36N 121-32W
    Eastern North Pacific · California
  19. NAVAREA XII 638/192019-12-12 → 2019-12-18
    Hazardous operations 1500Z to 2230Z daily 16 thru 18 dec in area bound by 33-16N 119-30W, 33-31N 119-21W,…
    Eastern North Pacific · California
  20. NAVAREA XII 637/192019-12-12 → 2019-12-18
    Hazardous operations 1500Z to 2230Z daily 16 thru 18 dec in area bound by 33-19N 119-37W, 33-20N 119-31W,…
    Eastern North Pacific · California
  21. NAVAREA XII 635/192019-12-12 → 2019-12-17
    Hazardous operations 171600Z to 172000Z dec in area within 15 miles of 34-36N 121-32W
    Eastern North Pacific · California
  22. NAVAREA XII 627/192019-12-09 → 2019-12-11
    Hazardous operations 131400Z to 132200Z and 141500Z to 142300Z dec in area within 33 miles of 33-15N 120-13W
    Eastern North Pacific · California
  23. NAVAREA XII 626/192019-12-09 → 2019-12-13
    Hazardous operations 121930Z to 122330Z dec in area within 15 miles of 33-09N 120-27W
    Eastern North Pacific · California
  24. NAVAREA XII 625/192019-12-09 → 2019-12-12
    Hazardous operations 1530Z to 2041Z daily 12 thru 16 dec in area bound by 35-31N 132-37W, 36-23N 129-18W,…
    Eastern North Pacific · California
  25. HYDROPAC 4052/192019-12-06 → 2019-12-18
    Hazardous operations 2100Z to 0900Z commencing daily 10, 13 and 17 dec in area within 25 miles of 31-14-14N…
    Western North Pacific
  26. NAVAREA XII 619/192019-12-05 → 2019-12-10
    Hazardous operations 101500Z to 102230Z dec, alternate 111500Z to 112230Z dec in area bound by 33-52N…
    Eastern North Pacific · California
  27. HYDROPAC 4006/192019-12-04 → 2019-12-05
    Hazardous operations 050500Z to 050800Z dec: a. in area within three miles of 13-26N 145-08E
    Western North Pacific · Philippine Sea · Guam
  28. NAVAREA XII 617/192019-12-03 → 2019-12-11
    Hazardous operations 041830Z to 110700Z dec in area bound by 29-55N 116-45W, 29-55N 117-05W, 30-25N 117-05W,…
    Eastern North Pacific · Mexico
  29. NAVAREA XII 615/192019-12-03 → 2019-12-05
    Hazardous operations 062000Z to 070001Z dec in area within 15 miles of 34-36N 120-32W
    Eastern North Pacific · California
  30. NAVAREA XII 613/192019-12-03 → 2019-12-14
    Hazardous operations 080801Z to 140759Z dec in area bound by 32-57-36N 118-30-40W, 32-59-48N 118-20-22W,…
    Eastern North Pacific · California
  31. NAVAREA XII 612/192019-12-03 → 2019-12-03
    Hazardous operations 042000Z to 050001Z dec in area within 15 miles of 33-09N 120-27W
    Eastern North Pacific · California
  32. HYDROPAC 3974/192019-12-02 → 2019-12-03
    Hazardous operations 030800Z to 031355Z dec in areas within three miles of: a. 13-26N 145-08E
    Western North Pacific · Philippine Sea · Guam
  33. NAVAREA XII 604/192019-11-30 → 2019-12-06
    Hazardous operations 010800Z dec to 010800Z jan 20 in areas bound by: a. 32-33-00N 118-25-00W, 32-35-00N…
    Eastern North Pacific · California
  34. NAVAREA XII 600/192019-11-27 → 2019-12-04
    Hazardous operations 291900Z nov to 040700Z dec in area bound by 29-55N 117-05W, 29-55N 118-25W, 30-25N…
    Eastern North Pacific · Mexico
  35. NAVAREA XII 599/192019-11-27 → 2020-01-01
    Hazardous operations 010800Z dec to 010800Z jan 20 in area bound by 32-55N 118-25W, 32-55N 118-15W, 32-40N…
    Eastern North Pacific · California
  36. HYDROPAC 3890/192019-11-26 → 2019-12-31
    Gunnery exercises 2300Z to 0900Z commencing daily 30 nov thru 30 dec in area bound by 28-15-15N 146-29-47E,…
    Western North Pacific
  37. HYDROPAC 3861/192019-11-25 → 2019-11-26
    Hazardous operations 260800Z to 261200Z nov in areas within three miles of: a. 13-26N 145-08E
    Western North Pacific · Philippine Sea · Guam
  38. HYDROPAC 3859/192019-11-25 → 2019-11-26
    Hazardous operations 252100Z to 260700Z nov in area bound by 13-10N 144-30E, 13-10N 144-42E, 12-50N 144-45E,…
    Western North Pacific · Guam
  39. NAVAREA XII 594/192019-11-22 → 2019-11-26
    Hazardous operations 262000Z to 270100Z nov in area within ten miles of 33-09N 120-27W
    Eastern North Pacific · California
  40. HYDROPAC 3824/192019-11-22 → 2019-11-24
    Hazardous operations 240100Z to 240400Z nov in areas within ten miles of: a. 15-46N 146-50E
    Western North Pacific · Mariana Islands
  41. NAVAREA XII 592/192019-11-20 → 2019-11-23
    Hazardous operations 222200Z to 230001Z nov in area within ten miles of 33-09N 120-27W
    Eastern North Pacific · California
  42. NAVAREA XII 591/192019-11-20 → 2019-11-21
    Hazardous operations 211500Z to 211900Z nov in area within 22 miles of 33-32N 119-56W
    Eastern North Pacific · California
  43. HYDROPAC 3799/192019-11-20 → 2019-11-21
    Hazardous operations 210800Z to 211355Z nov in areas within three miles of: a. 13-26N 145-08E
    Philippine Sea · Western North Pacific · Guam
  44. NAVAREA XII 589/192019-11-19 → 2019-11-22
    Hazardous operations 2100Z to 0100Z commencing daily 20 and 21 nov in area within 34 miles of 33-08N 120-37W
    Eastern North Pacific · California
  45. HYDROPAC 3785/192019-11-19 → 2019-11-20
    Hazardous operations 200800Z to 201200Z nov in areas within three miles of: a. 13-26N 145-08E
    Western North Pacific · Philippine Sea · Guam
  46. NAVAREA XII 585/192019-11-17 → 2019-11-24
    Hazardous operations 220730Z to 230030Z and 231530Z to 240030Z nov in area bound by 39-00.00N 124-00.00W,…
    Eastern North Pacific · California
  47. NAVAREA XII 580/192019-11-15 → 2019-11-20
    Hazardous operations 201430Z to 201830Z nov in area within 42 miles of 33-11N 120-29W
    Eastern North Pacific · California
  48. NAVAREA XII 579/192019-11-15 → 2019-11-19
    Hazardous operations 2100Z to 0100Z commencing daily 20 and 21 nov in areas within: a. 34 miles of 33-08N…
    Eastern North Pacific · California
  49. NAVAREA XII 577/192019-11-14 → 2019-11-19
    Hazardous operations 181700Z to 182300Z nov in areas bound by: a. 33-48-21N 120-18-24W, 33-56-41N…
    Eastern North Pacific · California
  50. NAVAREA XII 576/192019-11-14 → 2019-11-18
    Hazardous operations 161430Z to 170100Z, alternate 171430Z to 180100Z nov in area bound by 33-45N 120-05W,…
    Eastern North Pacific · California

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 31 · seahazards