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. NAVAREA XII 238/142014-07-19 → 2014-07-23
    Gunnery exercises 222200Z to 230200Z jul within 12 miles of 49-48N 153-44W
    Eastern North Pacific · Gunnery
  2. HYDROPAC 2101/142014-07-17 → 2014-07-18
    Hazardous operations
    Western North Pacific · Mariana Islands
  3. HYDROPAC 2052/142014-07-12 → 2014-07-12
    Hazardous operations
    Western North Pacific · Mariana Islands
  4. HYDROPAC 2031/142014-07-10 → 2014-07-11
    Hazardous operations
    Western North Pacific · Mariana Islands
  5. HYDROPAC 2017/142014-07-09 → 2014-07-10
    Hazardous operations
    Western North Pacific · Mariana Islands
  6. HYDROPAC 1989/142014-07-07 → 2014-07-09
    Hazardous operations
    Western North Pacific · Mariana Islands
  7. NAVAREA XII 220/142014-07-05 → 2014-08-02
    Hazardous operations
    North Pacific · Hawaii
  8. HYDROPAC 1903/142014-06-30 → 2014-07-03
    Hazardous operations
    Western North Pacific · Mariana Islands
  9. HYDROPAC 1869/142014-06-26 → 2014-07-31
    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 · Nampo Shoto · Gunnery
  10. HYDROPAC 1844/142014-06-25 → 2014-06-26
    Hazardous operations
    Western North Pacific · Mariana Islands
  11. HYDROPAC 1830/142014-06-24 → 2014-06-27
    Hazardous operations
    Western North Pacific · Mariana Islands
  12. HYDROPAC 1817/142014-06-23 → 2014-06-24
    Hazardous operations
    Western North Pacific · Mariana Islands
  13. HYDROPAC 1803/142014-06-22 → 2014-06-23
    Hazardous operations
    Western North Pacific · Mariana Islands
  14. NAVAREA XII 194/142014-06-18 → 2014-06-24
    Gunnery exercises: a. 221900Z to 222100Z jun within 30 miles of 26-40N 143-40W
    Eastern North Pacific · Gunnery
  15. HYDROPAC 1752/142014-06-18 → 2014-06-19
    Hazardous operations
    Western North Pacific · Mariana Islands
  16. HYDROPAC 1729/142014-06-16 → 2014-06-17
    Hazardous operations
    Western North Pacific · Mariana Islands
  17. HYDROPAC 1675/142014-06-11 → 2014-06-12
    Hazardous operations
    Western North Pacific · Mariana Islands
  18. HYDROPAC 1661/142014-06-10 → 2014-06-12
    Hazardous operations
    Western North Pacific · Mariana Islands
  19. HYDROPAC 1649/142014-06-09 → 2014-06-11
    Hazardous operations
    Western North Pacific · Mariana Islands
  20. NAVAREA XII 182/142014-06-05 → 2014-06-11
    Hazardous operations
    Eastern North Pacific · Hawaii
  21. HYDROPAC 1612/142014-06-05 → 2014-06-06
    Hazardous operations
    Western North Pacific · Mariana Islands
  22. HYDROPAC 1604/142014-06-04 → 2014-06-05
    Hazardous operations
    Western North Pacific · Mariana Islands
  23. NAVAREA XII 178/142014-06-04 → 2014-06-07
    Hazardous operations
    Eastern North Pacific · Alaska
  24. HYDROPAC 1573/142014-06-02 → 2014-06-04
    Hazardous operations
    Western North Pacific · Mariana Islands
  25. HYDROPAC 1572/142014-06-02 → 2014-06-04
    Hazardous operations
    Western North Pacific · Mariana Islands
  26. HYDROPAC 1533/142014-05-29 → 2014-05-30
    Hazardous operations
    Western North Pacific · Mariana Islands
  27. HYDROPAC 1510/142014-05-27 → 2014-05-28
    Hazardous operations
    Western North Pacific · Mariana Islands
  28. HYDROPAC 1507/142014-05-27 → 2014-06-30
    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 · Nampo Shoto · Gunnery
  29. HYDROPAC 1493/142014-05-26 → 2014-05-27
    Hazardous operations
    Western North Pacific · Mariana Islands
  30. NAVAREA XII 169/142014-05-25 → 2014-05-27
    Gunnery exercises 271800Z to 272200Z may within five miles of 57-58N 137-07W
    Gulf of Alaska · Gunnery
  31. HYDROPAC 1443/142014-05-20 → 2014-05-21
    Hazardous operations
    Western North Pacific · Mariana Islands
  32. HYDROPAC 1442/142014-05-20 → 2014-05-21
    Hazardous operations
    Western North Pacific · Mariana Islands
  33. NAVAREA XII 151/142014-05-19 → 2014-05-21
    Hazardous operations
    Eastern North Pacific · California
  34. HYDROPAC 1435/142014-05-19 → 2014-05-20
    Hazardous operations
    Western North Pacific · Mariana Islands
  35. HYDROPAC 1434/142014-05-19 → 2014-05-20
    Hazardous operations
    Western North Pacific · Mariana Islands
  36. HYDROPAC 1429/142014-05-17 → 2014-05-19
    Hazardous operations
    Western North Pacific · Mariana Islands
  37. HYDROPAC 1428/142014-05-17 → 2014-05-19
    Hazardous operations
    Western North Pacific · Mariana Islands
  38. NAVAREA XII 143/142014-05-13 → 2014-05-14
    Gunnery and pyrotechnic exercises 141700Z to 142200Z may within five miles of 57-28N 140-48W
    Eastern North Pacific · Gulf of Alaska · Gunnery
  39. HYDROPAC 1382/142014-05-13 → 2014-05-15
    Hazardous operations
    Western North Pacific · Mariana Islands
  40. HYDROPAC 1369/142014-05-12 → 2014-05-15
    Hazardous operations
    Western North Pacific · Mariana Islands
  41. HYDROPAC 1363/142014-05-12 → 2014-05-13
    Hazardous operations
    Western North Pacific · Mariana Islands
  42. NAVAREA XII 135/142014-05-09 → 2014-05-11
    Gunnery and pyrotechnics exercises 111830Z to 112230Z may, alternate 101830Z to 102230Z may within 10000…
    Gulf of Alaska · Gunnery
  43. NAVAREA XII 131/142014-05-08 → 2014-05-09
    Gunnery and pyrotechnics exercises 111830Z to 112230Z may within 10000 yards of 57-54N 137-20W
    Gulf of Alaska · Gunnery
  44. HYDROPAC 1316/142014-05-07 → 2014-05-08
    Hazardous operations
    Western North Pacific · Mariana Islands
  45. HYDROPAC 1298/142014-05-05 → 2014-05-06
    Hazardous operations
    Western North Pacific · Mariana Islands
  46. HYDROPAC 1291/142014-05-04 → 2014-05-09
    Gunnery exercises 090400Z to 090700Z may within ten miles of 29-55.0N 141-59.5E
    Western North Pacific · Japan · Nampo Shoto · Gunnery
  47. HYDROPAC 1251/142014-05-01 → 2014-05-02
    Hazardous operations
    Western North Pacific · Mariana Islands
  48. HYDROPAC 1236/142014-04-30 → 2014-05-01
    Hazardous operations
    Western North Pacific · Mariana Islands
  49. NAVAREA XII 119/142014-04-29 → 2014-05-02
    Hazardous operations
    Eastern North Pacific · California
  50. HYDROPAC 1227/142014-04-29 → 2014-04-30
    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.