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 65/172017-02-09 → 2017-02-10
    Hazardous operations 092100Z to 100100Z feb in area bound by 33-58N 121-59W, 35-04N 122-43W, 35-37N 121-32W,…
    Eastern North Pacific · California
  2. NAVAREA XII 64/172017-02-09 → 2017-02-11
    Hazardous operations 102100Z to 110100Z feb in area bound by 33-58N 121-59W, 35-04N 122-43W, 35-37N 121-32W,…
    Eastern North Pacific · California
  3. HYDROPAC 465/172017-02-09 → 2017-02-10
    Hazardous operations 092300Z to 100300Z feb in area within 12 miles of 16-01-06N 146-03-35E
    Western North Pacific · Mariana Islands
  4. HYDROPAC 458/172017-02-08 → 2017-02-09
    Hazardous operations 090001Z to 091300Z feb in area within 12 miles of 16-01-06N 146-03-35E
    Western North Pacific · Mariana Islands
  5. HYDROPAC 454/172017-02-07 → 2017-02-09
    Hazardous operations 090738Z to 091439Z feb, alternate 100750Z to 101451Z and 110700 to 111401Z feb in areas…
    North Pacific · Marshall Islands
  6. HYDROPAC 447/172017-02-07 → 2017-02-07
    Hazardous operations 090738Z to 091439Z feb, alternate 100750Z to 101451Z feb in areas bound by: a. 09-16N…
    North Pacific · Marshall Islands
  7. HYDROPAC 442/172017-02-07 → 2017-02-08
    Hazardous operations 080001Z to 081300Z feb in area within 12 miles of 16-01-06N 146-03-35E
    Western North Pacific · Mariana Islands
  8. NAVAREA XII 60/172017-02-06 → 2017-02-09
    Hazardous operations 0633Z to 1423Z daily 09 and 10 feb in areas bound by: a. 34-16N 124-18W, 34-38N…
    North Pacific
  9. NAVAREA XII 59/172017-02-05 → 2017-02-07
    Gunnery exercises 071700Z to 072000Z feb in area within five miles of 57-25.69N 137-05.64W
    Eastern North Pacific · Alaska
  10. NAVAREA XII 55/172017-02-03 → 2017-02-13
    Hazardous operations: a. 060800Z to 130800Z feb in area bound by 33-08-04N 118-46-02W, 33-05-37N 118-43-34W,…
    Eastern North Pacific · California
  11. HYDROPAC 397/172017-02-03 → 2017-02-04
    Hazardous operations 040001Z to 041300Z feb in area within 12 miles of 16-01-06N 146-03-35E
    Western North Pacific · Mariana Islands
  12. HYDROPAC 396/172017-02-03 → 2017-02-07
    Hazardous operations 080702Z to 081403Z feb, alternate 090738Z to 091439Z and 100750Z to 101451Z feb in…
    North Pacific · Marshall Islands
  13. NAVAREA XII 52/172017-02-03 → 2017-02-06
    Hazardous operations 0633Z to 1423Z daily 08 thru 10 feb in areas bound by: a. 34-16N 124-18W, 34-38N…
    North Pacific
  14. HYDROPAC 381/172017-02-02 → 2017-02-03
    Hazardous operations 030001Z to 031300Z feb in area within 12 miles of 16-01-06N 146-03-35E
    Western North Pacific · Mariana Islands
  15. HYDROPAC 365/172017-02-01 → 2017-02-02
    Hazardous operations 020001Z to 021300Z feb in area within 12 miles of 16-01-06N 146-03-35E
    Western North Pacific · Mariana Islands
  16. HYDROPAC 355/172017-01-31 → 2017-02-01
    Hazardous operations 010001Z to 011300Z feb in area within 12 miles of 16-01-06N 146-03-35E
    Western North Pacific · Mariana Islands
  17. HYDROPAC 338/172017-01-30 → 2017-01-31
    Hazardous operations 310001Z to 311300Z jan in area within 12 miles of 16-01-06N 146-03-35E
    Western North Pacific · Mariana Islands
  18. NAVAREA XII 46/172017-01-27 → 2017-02-05
    Hazardous operations: a. 310800Z jan to 050800Z feb in area bound by 33-08-04N 118-46-02W, 33-05-37N…
    Eastern North Pacific · California
  19. HYDROPAC 311/172017-01-27 → 2017-02-28
    Gunnery exercises 2300Z to 0900Z commencing daily 31 jan thru 27 feb in area bound by 27-55-15N 144-57-48E,…
    Western North Pacific · Nanpo Shoto
  20. HYDROPAC 307/172017-01-27 → 2017-01-28
    Hazardous operations 272130Z to 280030Z jan in area within 12 miles of 16-01-06N 146-03-35E
    Western North Pacific · Mariana Islands
  21. NAVAREA XII 43/172017-01-27 → 2017-03-01
    Hazardous operations 0801Z to 0759Z commencing daily 01 thru 28 feb in area bound by 32-35N 118-16W, 32-35N…
    Eastern North Pacific · California
  22. HYDROPAC 300/172017-01-26 → 2017-01-27
    Hazardous operations 270001Z to 271300Z jan in area within 12 miles of 16-01-06N 146-03-35E
    Western North Pacific · Mariana Islands
  23. HYDROPAC 286/172017-01-25 → 2017-01-26
    Hazardous operations 260001Z to 261300Z jan in area within 12 miles of 16-01-06N 146-03-35E
    Western North Pacific · Mariana Islands
  24. HYDROPAC 266/172017-01-24 → 2017-01-25
    Hazardous operations
    Western North Pacific · Mariana Islands
  25. NAVAREA XII 36/172017-01-24 → 2017-02-03
    Hazardous operations
    Eastern North Pacific · California
  26. HYDROPAC 254/172017-01-23 → 2017-01-24
    Hazardous operations
    Western North Pacific · Mariana Islands
  27. NAVAREA XII 31/172017-01-20 → 2017-01-28
    Hazardous operations
    Eastern North Pacific · California
  28. HYDROPAC 198/172017-01-19 → 2017-01-20
    Hazardous operations
    Western North Pacific · Mariana Islands
  29. NAVAREA XII 25/172017-01-17 → 2017-01-23
    Hazardous operations
    Eastern North Pacific · California
  30. HYDROPAC 177/172017-01-17 → 2017-01-18
    Hazardous operations
    Western North Pacific · Mariana Islands
  31. NAVAREA XII 16/172017-01-09 → 2017-01-13
    Hazardous operations
    Eastern North Pacific · California
  32. NAVAREA XII 11/172017-01-06 → 2017-01-16
    Hazardous operations
    Eastern North Pacific · California
  33. NAVAREA XII 5/172017-01-05 → 2017-01-13
    Hazardous operations
    Eastern North Pacific · California
  34. NAVAREA XII 497/162016-12-29 → 2017-02-01
    Hazardous operations
    Eastern North Pacific · California
  35. HYDROPAC 4019/162016-12-27 → 2017-01-31
    Gunnery exercises 2300Z to 0900Z commencing daily 31 dec thru 30 jan 17 in area bound by 27-55-15N…
    Western North Pacific · Nanpo Syoto · Gunnery
  36. NAVAREA XII 466/162016-12-08 → 2016-12-16
    Hazardous operations
    Eastern North Pacific · California
  37. NAVAREA XII 456/162016-12-05 → 2016-12-10
    Hazardous operations
    Eastern North Pacific · California
  38. HYDROPAC 3771/162016-12-05 → 2016-12-08
    Hazardous operations
    Western North Pacific · Mariana Islands
  39. NAVAREA XII 451/162016-12-02 → 2016-12-12
    Hazardous operations
    Eastern North Pacific · California
  40. NAVAREA XII 443/162016-12-01 → 2016-12-09
    Hazardous operations
    Eastern North Pacific · California
  41. NAVAREA XII 441/162016-11-30 → 2016-12-03
    Hazardous operations
    Eastern North Pacific · California
  42. HYDROPAC 3684/162016-11-29 → 2016-12-02
    Hazardous operations
    Western North Pacific · Mariana Islands
  43. NAVAREA XII 436/162016-11-28 → 2016-11-29
    Hazardous operations
    Eastern North Pacific · California
  44. NAVAREA XII 435/162016-11-28 → 2017-01-01
    Hazardous operations
    Eastern North Pacific · California
  45. HYDROPAC 3638/162016-11-25 → 2016-12-31
    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 Syoto · Gunnery
  46. HYDROPAC 3633/162016-11-25 → 2016-11-28
    Hazardous operations
    Western North Pacific · Mariana Islands
  47. HYDROPAC 3623/162016-11-24 → 2016-11-25
    Hazardous operations
    Western North Pacific · Mariana Islands
  48. NAVAREA XII 432/162016-11-23 → 2016-12-05
    Hazardous operations
    Eastern North Pacific · California
  49. NAVAREA XII 431/162016-11-23 → 2016-11-30
    Hazardous operations
    Eastern North Pacific · California
  50. NAVAREA XII 418/162016-11-14 → 2016-11-16
    Hazardous operations
    Eastern North Pacific · Guatemala

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.