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 2170/152015-06-29 → 2015-06-30
    Hazardous operations
    Western North Pacific · Mariana Islands
  2. HYDROPAC 2162/152015-06-28 → 2015-06-29
    Hazardous operations
    Western North Pacific · Mariana Islands
  3. HYDROPAC 2161/152015-06-28 → 2015-06-29
    Hazardous operations
    Western North Pacific · Mariana Islands
  4. HYDROPAC 2151/152015-06-27 → 2015-07-01
    Gunnery exercises 012300Z to 020800Z jul in area bound by 34-36.4N 139-52.7E, 29-50.0N 141-21.0E, 29-48.0N…
    Western North Pacific · Nanpo Shoto · Gunnery
  5. HYDROPAC 2137/152015-06-26 → 2015-07-31
    Gunnery exercises 2300Z to 0900Z commencing daily 30 jun thru 30 jul in area bound by 27-55-15N 144-57-48E,…
    Western North Pacific · Nanpo Shoto · Gunnery
  6. HYDROPAC 2108/152015-06-25 → 2015-06-26
    Hazardous operations
    Western North Pacific · Mariana Islands
  7. HYDROPAC 2088/152015-06-24 → 2015-06-25
    Hazardous operations
    Western North Pacific · Mariana Islands
  8. HYDROPAC 2067/152015-06-23 → 2015-06-24
    Hazardous operations
    Western North Pacific · Mariana Islands
  9. HYDROPAC 2066/152015-06-23 → 2015-06-24
    Hazardous operations
    Western North Pacific · Mariana Islands
  10. NAVAREA XII 220/152015-06-22 → 2015-06-24
    Gunnery exercises 232200Z to 240100Z jun in areas bound by: a. 53-00N 179-00W, 52-30N 179-00W, 52-30N…
    North Pacific · Bering Sea · Gunnery
  11. HYDROPAC 2046/152015-06-22 → 2015-06-23
    Hazardous operations
    Western North Pacific · Mariana Islands
  12. HYDROPAC 2045/152015-06-22 → 2015-06-23
    Hazardous operations
    Western North Pacific · Mariana Islands
  13. NAVAREA XII 217/152015-06-22 → 2015-06-22
    Hazardous operations
    Eastern North Pacific · Mexico
  14. HYDROPAC 2036/152015-06-21 → 2015-06-22
    Hazardous operations
    Western North Pacific · Mariana Islands
  15. HYDROPAC 2035/152015-06-21 → 2015-06-22
    Hazardous operations
    Western North Pacific · Mariana Islands
  16. HYDROPAC 1978/152015-06-17 → 2015-06-18
    Hazardous operations
    Western North Pacific · Mariana Islands
  17. HYDROPAC 1962/152015-06-16 → 2015-06-17
    Hazardous operations
    Western North Pacific · Mariana Islands
  18. HYDROPAC 1961/152015-06-16 → 2015-06-17
    Hazardous operations
    Western North Pacific · Mariana Islands
  19. HYDROPAC 1945/152015-06-15 → 2015-06-16
    Hazardous operations
    Western North Pacific · Mariana Islands
  20. HYDROPAC 1944/152015-06-15 → 2015-06-16
    Hazardous operations
    Western North Pacific · Mariana Islands
  21. HYDROPAC 1931/152015-06-13 → 2015-06-15
    Hazardous operations
    Western North Pacific · Mariana Islands
  22. NAVAREA XII 209/152015-06-12 → 2015-06-14
    Gunnery exercises 141800Z to 142200Z jun within five miles of 55-58N 134-46W
    Eastern North Pacific · Alaska · Gunnery
  23. HYDROPAC 1878/152015-06-09 → 2015-06-10
    Hazardous operations
    Western North Pacific · Mariana Islands
  24. HYDROPAC 1861/152015-06-08 → 2015-06-09
    Hazardous operations
    Western North Pacific · Mariana Islands
  25. HYDROPAC 1860/152015-06-08 → 2015-06-09
    Hazardous operations
    Western North Pacific · Mariana Islands
  26. HYDROPAC 1831/152015-06-05 → 2015-06-08
    Hazardous operations
    Western North Pacific · Mariana Islands
  27. NAVAREA XII 194/152015-06-04 → 2015-06-12
    Hazardous operations
    Eastern North Pacific · California
  28. HYDROPAC 1818/152015-06-04 → 2015-06-07
    Hazardous operations
    Western North Pacific · Mariana Islands
  29. HYDROPAC 1807/152015-06-03 → 2015-06-04
    Hazardous operations
    Western North Pacific · Mariana Islands
  30. NAVAREA XII 193/152015-06-03 → 2015-06-09
    Hazardous operations
    Eastern North Pacific · California
  31. HYDROPAC 1784/152015-05-31 → 2015-06-05
    Hazardous operations
    Western North Pacific · Mariana Islands
  32. NAVAREA XII 187/152015-05-30 → 2015-05-31
    Hazardous operations
    Eastern North Pacific · Alaska
  33. NAVAREA XII 186/152015-05-30 → 2015-05-31
    Hazardous operations
    Eastern North Pacific · Alaska
  34. NAVAREA XII 183/152015-05-28 → 2015-05-29
    Gunnery exercise 282200Z to 290700Z may within 30000 yards of 54-15N 158-00W
    Eastern North Pacific · Alaska · Gunnery
  35. NAVAREA XII 182/152015-05-26 → 2015-05-28
    Gunnery exercise 272200Z to 280700Z may within 30000 yards of 54-15N 158-00W
    Eastern North Pacific · Alaska · Gunnery
  36. HYDROPAC 1725/152015-05-26 → 2015-06-30
    Gunnery exercises 2300Z to 0900Z commencing daily 31 may thru 29 jun in area bound by 27-55.15N 144-57.48E,…
    Western North Pacific · Nanpo Shoto · Gunnery
  37. HYDROPAC 1717/152015-05-25 → 2015-05-27
    Hazardous operations
    Western North Pacific · Mariana Islands
  38. HYDROPAC 1716/152015-05-25 → 2015-05-31
    Hazardous operations
    Western North Pacific · Mariana Islands
  39. NAVAREA XII 179/152015-05-24 → 2015-05-31
    Hazardous operations
    Eastern North Pacific · California
  40. NAVAREA XII 178/152015-05-24 → 2015-05-26
    Gunnery exercises 252000Z to 260300Z may within 12000 yards of: a. 54-15N 158-00W
    Eastern North Pacific · Alaska · Gunnery
  41. HYDROPAC 1712/152015-05-24 → 2015-05-25
    Hazardous operations
    Western North Pacific · Mariana Islands
  42. NAVAREA XII 175/152015-05-24 → 2015-05-28
    Gunnery exercises 271900Z to 280200Z may within 12000 yards of 54-44N 134-18W
    Eastern North Pacific · Alaska · Gunnery
  43. HYDROPAC 1651/152015-05-20 → 2015-05-21
    Hazardous operations
    Western North Pacific · Mariana Islands
  44. HYDROPAC 1638/152015-05-19 → 2015-05-20
    Hazardous operations
    Western North Pacific · Mariana Islands
  45. HYDROPAC 1635/152015-05-18 → 2015-05-20
    Hazardous operations
    North Pacific · Marshall Islands
  46. HYDROPAC 1631/152015-05-18 → 2015-05-25
    Gunnery exercises 222100Z to 230900Z may, alternate 2100Z to 0900Z commencing daily 23 and 24 may within 25…
    Western North Pacific · Nanpo Shoto · Gunnery
  47. HYDROPAC 1630/152015-05-18 → 2015-05-19
    Hazardous operations
    Western North Pacific · Mariana Islands
  48. HYDROPAC 1629/152015-05-18 → 2015-05-19
    Hazardous operations
    Western North Pacific · Mariana Islands
  49. NAVAREA XII 164/152015-05-15 → 2015-05-22
    Hazardous operations
    Eastern North Pacific · California
  50. NAVAREA XII 162/152015-05-15 → 2015-05-20
    Hazardous operations
    Eastern North Pacific

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.