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 · 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 · 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
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 · 4,618 cancelled

  1. HYDROPAC 366/162016-02-10 → 2016-02-13
    Hazardous operations
    Western North Pacific · Mariana Islands
  2. NAVAREA XII 40/162016-02-08 → 2016-02-22
    Hazardous operations
    Eastern North Pacific · Mexico
  3. NAVAREA XII 39/162016-02-08 → 2016-02-10
    Hazardous operations
    Eastern North Pacific · Mexico
  4. HYDROPAC 356/162016-02-08 → 2016-02-10
    Hazardous operations
    Western North Pacific · Mariana Islands
  5. HYDROPAC 352/162016-02-07 → 2016-02-10
    Hazardous operations
    Western North Pacific · Mariana Islands
  6. HYDROPAC 340/162016-02-06 → 2016-02-08
    Hazardous operations
    Western North Pacific · Mariana Islands
  7. HYDROPAC 327/162016-02-05 → 2016-02-06
    Hazardous operations
    Western North Pacific · Mariana Islands
  8. HYDROPAC 311/162016-02-04 → 2016-02-05
    Hazardous operations
    Western North Pacific · Mariana Islands
  9. HYDROPAC 277/162016-02-01 → 2016-02-09
    Gunnery exercises 052000Z to 061000Z feb, alternate 2000Z to 1000Z commencing daily 06 thru 08 feb within 25…
    Western North Pacific · Nanpo Shoto · Gunnery
  10. HYDROPAC 274/162016-02-01 → 2016-02-02
    Hazardous operations
    Western North Pacific · Mariana Islands
  11. HYDROPAC 244/162016-01-28 → 2016-01-29
    Hazardous operations
    Western North Pacific · Mariana Islands
  12. NAVAREA XII 29/162016-01-28 → 2016-03-01
    Hazardous operations
    Eastern North Pacific · California
  13. HYDROPAC 231/162016-01-27 → 2016-02-29
    Gunnery exercises 2300Z to 0900Z commencing daily 31 jan thru 28 feb in area bound by 27-55-15N 144-57-48E,…
    Western North Pacific · Nanpo Shoto · Gunnery
  14. NAVAREA XII 27/162016-01-27 → 2016-01-29
    Hazardous operations
    Eastern North Pacific
  15. HYDROPAC 226/162016-01-26 → 2016-01-27
    Hazardous operations
    Western North Pacific · Mariana Islands
  16. HYDROPAC 225/162016-01-26 → 2016-01-27
    Gunnery exercises 262330Z to 270600Z jan in area bound by 13-10N 144-43E, 13-10N 144-30E, 12-45N 144-30E,…
    Western North Pacific · Mariana Islands · Gunnery
  17. HYDROPAC 211/162016-01-24 → 2016-01-30
    Gunnery exercises 282000Z to 291100Z jan, alternate 292000Z to 301100Z jan within 25 miles of 31-14-14N…
    Western North Pacific · Nanpo Shoto · Gunnery
  18. NAVAREA XII 25/162016-01-23 → 2016-01-27
    Hazardous operations
    Eastern North Pacific
  19. NAVAREA XII 20/162016-01-21 → 2016-02-01
    Hazardous operations
    Eastern North Pacific · California
  20. HYDROPAC 189/162016-01-21 → 2016-01-22
    Gunnery exercises 211400Z to 221355Z jan in area bound by 13-10N 144-43E, 13-10N 144-30E, 12-45N 144-30E,…
    Western North Pacific · Mariana Islands · Gunnery
  21. HYDROPAC 182/162016-01-20 → 2016-01-21
    Hazardous operations
    Western North Pacific · Mariana Islands
  22. HYDROPAC 181/162016-01-20 → 2016-01-22
    Hazardous operations
    Western North Pacific · Mariana Islands
  23. HYDROPAC 180/162016-01-20 → 2016-01-21
    Gunnery exercises 201400Z to 211355Z jan in area bound by 13-10N 144-43E, 13-10N 144-30E, 12-45N 144-30E,…
    Western North Pacific · Mariana Islands · Gunnery
  24. HYDROPAC 164/162016-01-19 → 2016-01-20
    Hazardous operations
    Western North Pacific · Mariana Islands
  25. HYDROPAC 163/162016-01-19 → 2016-01-20
    Gunnery exercises 191400Z to 201355Z jan in area bound by 13-10N 144-43E, 13-10N 144-30E, 12-45N 144-30E,…
    Western North Pacific · Mariana Islands · Gunnery
  26. HYDROPAC 153/162016-01-18 → 2016-01-19
    Hazardous operations
    Western North Pacific · Mariana Islands
  27. HYDROPAC 143/162016-01-17 → 2016-01-19
    Gunnery exercises 171400Z to 191335Z jan in area bound by 13-10N 144-43E, 13-10N 144-30E, 12-45N 144-30E,…
    Western North Pacific · Mariana Islands · Gunnery
  28. NAVAREA XII 15/162016-01-15 → 2016-02-02
    Hazardous operations 18 jan thru 01 feb within ten miles of 22-36N 144-14W
    Eastern North Pacific · Hazardous Operatons
  29. HYDROPAC 95/162016-01-13 → 2016-01-14
    Hazardous operations
    Western North Pacific · Mariana Islands
  30. NAVAREA XII 13/162016-01-12 → 2016-01-18
    Hazardous operations
    Eastern North Pacific
  31. HYDROPAC 75/162016-01-10 → 2016-01-12
    Hazardous operations
    Western North Pacific · Mariana Islands
  32. HYDROPAC 41/162016-01-07 → 2016-01-08
    Hazardous operations
    Western North Pacific · Mariana Islands
  33. HYDROPAC 36/162016-01-06 → 2016-01-07
    Hazardous operations
    Western North Pacific · Mariana Islands
  34. HYDROPAC 35/162016-01-06 → 2016-01-07
    Hazardous operations
    Western North Pacific · Mariana Islands
  35. HYDROPAC 25/162016-01-05 → 2016-01-06
    Hazardous operations
    Western North Pacific · Mariana Islands
  36. HYDROPAC 16/162016-01-04 → 2016-01-05
    Hazardous operations
    Western North Pacific · Mariana Islands
  37. HYDROPAC 4244/152015-12-30 → 2015-12-31
    Hazardous operations
    Western North Pacific · Mariana Islands
  38. HYDROPAC 4229/152015-12-29 → 2015-12-30
    Hazardous operations
    Western North Pacific · Mariana Islands
  39. HYDROPAC 4222/152015-12-28 → 2015-12-29
    Hazardous operations
    Western North Pacific · Mariana Islands
  40. HYDROPAC 4214/152015-12-27 → 2016-01-31
    Gunnery exercises 2300Z to 0900Z commencing daily 31 dec thru 30 jan 16 in area bound by 27-55-15N…
    Western North Pacific · Nanpo Shoto · Gunnery
  41. HYDROPAC 4148/152015-12-21 → 2015-12-23
    Hazardous operations
    Western North Pacific · Mariana Islands
  42. HYDROPAC 4107/152015-12-17 → 2015-12-18
    Hazardous operations
    Western North Pacific · Mariana Islands
  43. HYDROPAC 4095/152015-12-16 → 2015-12-17
    Hazardous operations
    Western North Pacific · Mariana Islands
  44. HYDROPAC 4087/152015-12-15 → 2015-12-16
    Gunnery exercises 160200Z to 161000Z dec in area bound by 13-10N 144-43E, 13-10N 144-30E, 12-45N 144-30E,…
    Western North Pacific · Mariana Islands · Gunnery
  45. HYDROPAC 4086/152015-12-15 → 2015-12-16
    Hazardous operations
    Western North Pacific · Mariana Islands
  46. HYDROPAC 4072/152015-12-14 → 2015-12-15
    Hazardous operations
    Western North Pacific · Mariana Islands
  47. HYDROPAC 4064/152015-12-13 → 2015-12-14
    Gunnery exercises 132300Z to 140600Z dec in area bound by 13-10N 144-43E, 13-10N 144-30E, 12-45N 144-30E,…
    Western North Pacific · Mariana Islands · Gunnery
  48. HYDROPAC 4063/152015-12-13 → 2015-12-14
    Hazardous operations
    Western North Pacific · Mariana Islands
  49. HYDROPAC 4032/152015-12-11 → 2015-12-12
    Hazardous operations
    Western North Pacific · Mariana Islands
  50. HYDROPAC 4022/152015-12-10 → 2015-12-11
    Hazardous operations
    Western North Pacific · Mariana Islands

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.