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 4021/152015-12-10 → 2015-12-11
    Hazardous operations
    Western North Pacific · Mariana Islands
  2. HYDROPAC 3986/152015-12-06 → 2015-12-10
    Hazardous operations
    Western North Pacific · Mariana Islands
  3. HYDROPAC 3975/152015-12-04 → 2015-12-06
    Hazardous operations
    Western North Pacific · Mariana Islands
  4. HYDROPAC 3961/152015-12-03 → 2015-12-04
    Hazardous operations
    Western North Pacific · Mariana Islands
  5. HYDROPAC 3949/152015-12-02 → 2015-12-03
    Hazardous operations
    Western North Pacific · Mariana Islands
  6. HYDROPAC 3948/152015-12-02 → 2015-12-03
    Hazardous operations
    Western North Pacific · Mariana Islands
  7. HYDROPAC 3933/152015-12-01 → 2015-12-02
    Hazardous operations
    Western North Pacific · Mariana Islands
  8. HYDROPAC 3917/152015-11-29 → 2015-11-30
    Hazardous operations
    Western North Pacific · Mariana Islands
  9. HYDROPAC 3892/152015-11-26 → 2015-12-31
    Gunnery exercises 2300Z to 0900Z commencing daily 30 nov thru 30 dec in area bound by 27-55-15N 144-57-48E,…
    Western North Pacific · Nanpo Shoto · Gunnery
  10. HYDROPAC 3859/152015-11-24 → 2015-11-25
    Hazardous operations
    Western North Pacific · Mariana Islands
  11. HYDROPAC 3843/152015-11-23 → 2015-11-24
    Hazardous operations
    Western North Pacific · Mariana Islands
  12. HYDROPAC 3842/152015-11-23 → 2015-11-24
    Hazardous operations
    Western North Pacific · Mariana Islands
  13. HYDROPAC 3831/152015-11-22 → 2015-11-23
    Hazardous operations
    Western North Pacific · Mariana Islands
  14. HYDROPAC 3800/152015-11-19 → 2015-11-20
    Hazardous operations
    Western North Pacific · Mariana Islands
  15. HYDROPAC 3766/152015-11-17 → 2015-11-18
    Hazardous operations
    Western North Pacific · Mariana Islands
  16. HYDROPAC 3765/152015-11-17 → 2015-11-18
    Hazardous operations
    Western North Pacific · Mariana Islands
  17. HYDROPAC 3756/152015-11-16 → 2015-11-17
    Hazardous operations
    Western North Pacific · Mariana Islands
  18. HYDROPAC 3747/152015-11-15 → 2015-11-16
    Hazardous operations
    Western North Pacific · Mariana Islands
  19. NAVAREA XII 385/152015-11-14 → 2015-11-23
    Hazardous operations
    Eastern North Pacific · California
  20. NAVAREA XII 383/152015-11-13 → 2015-11-20
    Hazardous operations
    Eastern North Pacific · California
  21. NAVAREA XII 382/152015-11-13 → 2015-11-17
    Hazardous operations
    Eastern North Pacific
  22. HYDROPAC 3664/152015-11-09 → 2015-11-10
    Hazardous operations
    Western North Pacific · Mariana Islands
  23. NAVAREA XII 373/152015-11-09 → 2015-11-25
    Hazardous operations
    Eastern North Pacific · Mexico
  24. HYDROPAC 3651/152015-11-08 → 2015-11-09
    Hazardous operations
    Western North Pacific · Mariana Islands
  25. HYDROPAC 3650/152015-11-08 → 2015-11-10
    Hazardous operations
    Western North Pacific · Mariana Islands
  26. HYDROPAC 3628/152015-11-05 → 2015-11-06
    Hazardous operations
    Western North Pacific · Mariana Islands
  27. HYDROPAC 3612/152015-11-04 → 2015-11-05
    Hazardous operations
    Western North Pacific · Mariana Islands
  28. NAVAREA XII 363/152015-11-02 → 2015-11-10
    Hazardous operations
    Eastern North Pacific · California
  29. HYDROPAC 3594/152015-11-02 → 2015-11-03
    Hazardous operations
    Western North Pacific · Mariana Islands
  30. NAVAREA XII 361/152015-10-31 → 2015-10-31
    Hazardous operations
    Eastern North Pacific · Mexico
  31. HYDROPAC 3550/152015-10-28 → 2015-11-01
    Hazardous operations
    North Pacific · Marshall Islands
  32. HYDROPAC 3540/152015-10-28 → 2015-10-28
    Hazardous operations
    North Pacific · Marshall Islands
  33. HYDROPAC 3536/152015-10-27 → 2015-11-30
    Gunnery exercises 2300Z to 0900Z commencing daily 31 oct thru 29 nov in area bound by 27-55-15N 144-57-48E,…
    Western North Pacific · Nanpo Shoto · Gunnery
  34. HYDROPAC 3530/152015-10-27 → 2015-10-28
    Hazardous operations
    Western North Pacific · Mariana Islands
  35. HYDROPAC 3528/152015-10-27 → 2015-10-28
    Hazardous operations
    North Pacific · Marshall Islands
  36. HYDROPAC 3515/152015-10-26 → 2015-10-27
    Hazardous operations
    Western North Pacific · Mariana Islands
  37. HYDROPAC 3481/152015-10-22 → 2015-10-23
    Gunnery exercises 221600Z to 231600Z oct in area bound by 21-22.0N 163-23.0E, 21-02.0N 163-25.0E, 20-11.5N…
    North Pacific · Gunnery
  38. HYDROPAC 3475/152015-10-22 → 2015-10-27
    Hazardous operations
    North Pacific · Marshall Islands
  39. HYDROPAC 3467/152015-10-21 → 2015-10-22
    Hazardous operations
    Western North Pacific · Mariana Islands
  40. HYDROPAC 3455/152015-10-20 → 2015-10-21
    Hazardous operations
    North Pacific · Marshall Islands
  41. HYDROPAC 3418/152015-10-17 → 2015-10-20
    Hazardous operations
    North Pacific · Marshall Islands
  42. HYDROPAC 3401/152015-10-16 → 2015-10-17
    Hazardous operations
    North Pacific · Marshall Islands
  43. NAVAREA XII 350/152015-10-16 → 2015-10-21
    Hazardous operations
    Eastern North Pacific
  44. HYDROPAC 3387/152015-10-15 → 2015-10-18
    Hazardous operations
    Western North Pacific · Mariana Islands
  45. NAVAREA XII 344/152015-10-10 → 2015-10-19
    Hazardous operations
    Eastern North Pacific · California
  46. HYDROPAC 3303/152015-10-07 → 2015-10-08
    Hazardous operations
    Western North Pacific · Mariana Islands
  47. HYDROPAC 3295/152015-10-06 → 2015-10-07
    Hazardous operations
    Western North Pacific · Mariana Islands
  48. NAVAREA XII 337/152015-10-04 → 2015-10-08
    Hazardous operations
    Eastern North Pacific
  49. HYDROPAC 3274/152015-10-03 → 2015-10-05
    Hazardous operations
    North Pacific · Marshall Islands
  50. NAVAREA XII 335/152015-10-02 → 2015-10-12
    Hazardous operations
    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.