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 3505/122012-12-10 → 2012-12-15
    Hazardous operations
    North Pacific · Mariana Islands
  2. HYDROPAC 3495/122012-12-09 → 2012-12-10
    Hazardous operations
    North Pacific · Mariana Islands
  3. HYDROPAC 3447/122012-12-05 → 2012-12-16
    Gunnery exercises 092100Z to 100900Z dec, alternate 2100Z to 0900Z commencing daily 10 thru 15 dec within 25…
    Western North Pacific · Japan · Nampo Shoto · Gunnery
  4. HYDROPAC 3437/122012-12-04 → 2012-12-12
    Gunnery exercises 082200Z to 090730Z dec, alternate 2200Z to 0730Z commencing daily 09 thru 11 dec within 25…
    Western North Pacific · Japan · Nampo Shoto · Gunnery
  5. HYDROPAC 3417/122012-12-03 → 2012-12-05
    Hazardous operations
    North Pacific · Mariana Islands
  6. HYDROPAC 3378/122012-11-29 → 2012-11-30
    Hazardous operations
    North Pacific · Mariana Islands
  7. HYDROPAC 3362/122012-11-28 → 2012-11-29
    Hazardous operations
    North Pacific · Mariana Islands
  8. HYDROPAC 3344/122012-11-26 → 2012-12-31
    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 · Japan · Nampo Shoto · Gunnery
  9. HYDROPAC 3271/122012-11-20 → 2012-11-21
    Hazardous operations
    North Pacific · Mariana Islands
  10. HYDROPAC 3224/122012-11-15 → 2012-11-16
    Hazardous operations
    North Pacific · Mariana Islands
  11. HYDROPAC 3223/122012-11-15 → 2012-11-15
    Hazardous operations
    North Pacific · Mariana Islands
  12. HYDROPAC 3196/122012-11-12 → 2012-11-15
    Hazardous operations
    North Pacific · Mariana Islands
  13. HYDROPAC 3181/122012-11-10 → 2012-11-11
    Hazardous operations
    North Pacific · Mariana Islands
  14. HYDROPAC 3084/122012-11-01 → 2012-11-02
    Hazardous operations
    North Pacific · Mariana Islands
  15. HYDROPAC 3071/122012-10-31 → 2012-11-02
    Hazardous operations
    North Pacific · Mariana Islands
  16. HYDROPAC 3031/122012-10-27 → 2012-11-30
    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 · Japan · Nampo Shoto · Gunnery
  17. HYDROPAC 2983/122012-10-23 → 2012-10-24
    Hazardous operations
    North Pacific · Mariana Islands
  18. HYDROPAC 2960/122012-10-22 → 2012-10-23
    Hazardous operations
    North Pacific · Mariana Islands
  19. HYDROPAC 2953/122012-10-21 → 2012-10-22
    Hazardous operations
    North Pacific · Mariana Islands
  20. HYDROPAC 2945/122012-10-20 → 2012-10-28
    Gunnery exercises 242100Z to 250900Z oct, alternate 2100Z to 0900Z commencing daily 25 thru 27 oct within 25…
    Western North Pacific · Japan · Nampo Shoto · Gunnery
  21. HYDROPAC 2922/122012-10-18 → 2012-10-19
    Hazardous operations
    North Pacific · Mariana Islands
  22. HYDROPAC 2912/122012-10-17 → 2012-10-18
    Hazardous operations
    North Pacific · Mariana Islands
  23. HYDROPAC 2872/122012-10-13 → 2012-10-15
    Hazardous operations
    North Pacific · Mariana Islands
  24. HYDROPAC 2857/122012-10-12 → 2012-10-13
    Hazardous operations
    North Pacific · Mariana Islands
  25. HYDROPAC 2826/122012-10-09 → 2012-10-11
    Hazardous operations
    North Pacific · Mariana Islands
  26. HYDROPAC 2785/122012-10-03 → 2012-10-04
    Hazardous operations
    North Pacific · Mariana Islands
  27. NAVAREA XII 267/122012-10-01 → 2012-10-03
    Hazardous operations
    Gulf of Alaska
  28. HYDROPAC 2765/122012-10-01 → 2012-10-02
    Hazardous operations
    North Pacific · Mariana Islands
  29. NAVAREA XII 265/122012-09-29 → 2012-10-02
    Hazardous operations
    Gulf of Alaska
  30. HYDROPAC 2725/122012-09-27 → 2012-10-05
    Hazardous operations
    North Pacific · Mariana Islands
  31. HYDROPAC 2717/122012-09-26 → 2012-10-31
    Gunnery exercises 2300Z to 0900Z commencing daily 30 sep thru 30 oct in area bound by 27-55-15N 144-57-48E,…
    Western North Pacific · Japan · Nampo Shoto · Gunnery
  32. HYDROPAC 2698/122012-09-22 → 2012-09-30
    Hazardous operations
    North Pacific · Mariana Islands
  33. HYDROPAC 2689/122012-09-21 → 2012-09-22
    Hazardous operations
    North Pacific · Mariana Islands
  34. HYDROPAC 2662/122012-09-19 → 2012-09-19
    Hazardous operations
    Western North Pacific · Mariana Islands
  35. HYDROPAC 2660/122012-09-19 → 2012-09-19
    Hazardous operations
    North Pacific · Mariana Islands
  36. HYDROPAC 2616/122012-09-14 → 2012-09-21
    Hazardous operations
    North Pacific · Mariana Islands
  37. HYDROPAC 2569/122012-09-09 → 2012-09-20
    Hazardous operations
    North Pacific · Mariana Islands
  38. HYDROPAC 2530/122012-09-04 → 2012-09-07
    Hazardous operations
    North Pacific · Mariana Islands
  39. HYDROPAC 2510/122012-09-02 → 2012-09-08
    Hazardous operations
    North Pacific · Mariana Islands
  40. HYDROPAC 2455/122012-08-27 → 2012-09-30
    Gunnery exercises 2300Z to 0900Z commencing daily 31 aug thru 29 sep in area bound by 27-55-15N 144-57-48E,…
    Western North Pacific · Japan · Nampo Shoto · Gunnery
  41. HYDROPAC 2441/122012-08-26 → 2012-08-31
    Hazardous operations
    North Pacific · Mariana Islands
  42. HYDROPAC 2396/122012-08-22 → 2012-08-23
    Hazardous operations
    North Pacific · Mariana Islands
  43. NAVAREA XII 209/122012-08-08 → 2012-08-09
    Gunnery exercises 090001Z to 090500Z aug within five miles of: a. 52-15N 163-00W
    Eastern North Pacific · Alaska · Gunnery
  44. HYDROPAC 2232/122012-08-06 → 2012-08-08
    Hazardous operations
    North Pacific · Mariana Islands
  45. HYDROPAC 2135/122012-07-26 → 2012-08-31
    Gunnery exercises 2300Z to 0900Z commencing daily 31 jul thru 30 aug in area bound by 27-55-15N 144-57-48E,…
    Western North Pacific · Japan · Nampo Shoto · Gunnery
  46. NAVAREA XII 185/122012-07-24 → 2012-07-28
    Hazardous operations 1700Z to 2300Z daily 26 and 27 jul in areas: a. bound by 30-55N 117-30W, 30-55N…
    Eastern North Pacific · Hazardous Operation
  47. HYDROPAC 2100/122012-07-23 → 2012-07-25
    Hazardous operations
    North Pacific · Mariana Islands
  48. HYDROPAC 1937/122012-07-09 → 2012-07-10
    Hazardous operations
    North Pacific · Mariana Islands
  49. HYDROPAC 1931/122012-07-08 → 2012-07-13
    Hazardous operations
    North Pacific · Mariana Islands
  50. HYDROPAC 1908/122012-07-05 → 2012-07-06
    Hazardous operations
    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.