Military exercises in the North Pacific Ocean

Gunnery, firing and naval exercise areas.

in force
6
last 12 months
20
vs previous 12 (30)
-33%
since 1993
4,626

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 · 4,620 cancelled

  1. NAVAREA XII 141/102010-04-02 → 2010-04-07
    Hazardous operations
    Gulf of Alaska
  2. HYDROPAC 663/102010-04-01 → 2010-04-02
    Hazardous operations
    North Pacific · Mariana Islands
  3. HYDROPAC 638/102010-03-30 → 2010-03-31
    Hazardous operations
    North Pacific · Mariana Islands
  4. HYDROPAC 633/102010-03-29 → 2010-03-30
    Hazardous operations
    North Pacific · Mariana Islands
  5. HYDROPAC 629/102010-03-29 → 2010-03-29
    Hazardous operations
    North Pacific · Mariana Islands
  6. HYDROPAC 614/102010-03-27 → 2010-04-30
    Gunnery exercises 2300Z to 0900Z commencing daily 31 mar thru 29 apr in area bound by 27-55-15N 144-57-48E,…
    North Pacific · Gunnery
  7. HYDROPAC 601/102010-03-25 → 2010-03-27
    Hazardous operations
    North Pacific · Mariana Islands
  8. HYDROPAC 600/102010-03-25 → 2010-03-27
    Hazardous operations
    North Pacific · Mariana Islands
  9. HYDROPAC 564/102010-03-20 → 2010-03-26
    Hazardous operations
    North Pacific · Mariana Islands
  10. HYDROPAC 552/102010-03-19 → 2010-03-20
    Hazardous operations
    North Pacific · Mariana Islands
  11. NAVAREA XII 117/102010-03-17 → 2010-03-18
    Hazardous operations
    Gulf of Alaska
  12. NAVAREA XII 116/102010-03-15 → 2010-03-18
    Hazardous operations
    Eastern North Pacific
  13. NAVAREA XII 114/102010-03-15 → 2010-03-16
    Hazardous operations
    Eastern North Pacific
  14. HYDROPAC 501/102010-03-15 → 2010-03-16
    Hazardous operations
    Mariana Islands
  15. NAVAREA XII 110/102010-03-14 → 2010-03-16
    Hazardous operations
    Eastern North Pacific
  16. HYDROPAC 476/102010-03-12 → 2010-03-13
    Hazardous operations
    North Pacific · Mariana Islands
  17. HYDROPAC 445/102010-03-08 → 2010-03-09
    Hazardous operations
    North Pacific · Mariana Islands
  18. HYDROPAC 368/102010-02-25 → 2010-02-26
    Hazardous operations
    North Pacific · Mariana Islands
  19. HYDROPAC 356/102010-02-24 → 2010-03-31
    Gunnery exercises 2300Z to 0900Z commencing daily 28 feb thru 30 mar in area bound by 27-55-15N 144-57-48E,…
    North Pacific · Gunnery
  20. HYDROPAC 354/102010-02-24 → 2010-02-25
    Hazardous operations
    North Pacific · Mariana Islands
  21. HYDROPAC 345/102010-02-22 → 2010-02-24
    Hazardous operations
    North Pacific · Mariana Islands
  22. HYDROPAC 324/102010-02-18 → 2010-02-19
    Hazardous operations
    North Pacific · Mariana Islands
  23. NAVAREA XII 83/102010-02-17 → 2010-02-18
    Hazardous operations
    Gulf of Alaska
  24. HYDROPAC 314/102010-02-17 → 2010-02-18
    Hazardous operations
    North Pacific · Mariana Islands
  25. HYDROPAC 310/102010-02-16 → 2010-02-17
    Hazardous operations
    North Pacific · Mariana Islands
  26. HYDROPAC 294/102010-02-14 → 2010-02-16
    Hazardous operations
    North Pacific · Mariana Islands
  27. HYDROPAC 258/102010-02-10 → 2010-02-13
    Hazardous operations
    North Pacific · Mariana Islands
  28. HYDROPAC 250/102010-02-08 → 2010-02-09
    Hazardous operations
    North Pacific · Mariana Islands
  29. NAVAREA XII 71/102010-02-07 → 2010-02-22
    Hazardous operations
    Eastern North Pacific · Mexico-southwest Coast
  30. HYDROPAC 192/102010-01-31 → 2010-02-04
    Hazardous operations
    North Pacific · Mariana Islands
  31. HYDROPAC 151/102010-01-27 → 2010-02-28
    Gunnery exercises 2300Z to 0900Z commencing daily 31 jan thru 27 feb in area bound by 27-55-15N 144-57-48E,…
    North Pacific · Gunnery
  32. NAVAREA XII 43/102010-01-26 → 2010-02-01
    Hazardous operations
    North Pacific
  33. HYDROPAC 107/102010-01-20 → 2010-01-22
    Hazardous operations
    North Pacific
  34. HYDROPAC 100/102010-01-19 → 2010-01-20
    Hazardous operations
    North Pacific
  35. HYDROPAC 96/102010-01-19 → 2010-01-19
    Hazardous operations
    North Pacific
  36. HYDROPAC 61/102010-01-13 → 2010-01-13
    Hazardous operations
    North Pacific
  37. HYDROPAC 53/102010-01-11 → 2010-01-12
    Hazardous operations
    North Pacific · Mariana Islands
  38. NAVAREA XII 15/102010-01-07 → 2010-01-31
    Hazardous operations
    North Pacific
  39. HYDROPAC 16/102010-01-03 → 2010-01-04
    Hazardous operations
    North Pacific
  40. HYDROPAC 2431/092009-12-28 → 2009-12-30
    Hazardous operations 2300Z to 1000Z commencing daily 28 and 29 dec within ten miles of 16-01N 146-04E
  41. HYDROPAC 2430/092009-12-27 → 2010-01-31
    Gunnery exercises 2300Z to 0900Z commencing daily 31 dec thru 30 jan 10 in area bound by 27-55-15N…
  42. HYDROPAC 2416/092009-12-24 → 2009-12-29
    Hazardous operations 0001Z to 0130Z daily 29 thru 31 dec within 216 miles of 03-00N 166-00E
  43. HYDROPAC 2389/092009-12-20 → 2009-12-21
    Hazardous operations 202300Z to 211000Z dec within ten miles of 16-01N 146-04E
  44. HYDROPAC 2337/092009-12-14 → 2009-12-24
    Hazardous operations 182100Z to 190800Z dec, alternate 2100Z to 0800Z commencing daily 19 thru 23 dec within…
  45. NAVAREA XII 584/092009-12-11 → 2009-12-14
    Hazardous operations 1339Z to 1523Z daily 14 thru 17 dec in areas bound by: a. 34-28N 120-39W, 34-30N…
  46. NAVAREA XII 583/092009-12-11 → 2009-12-11
    Hazardous operations 1339Z to 1523Z daily 13 thru 16 dec in areas bound by: a. 34-28N 120-39W, 34-30N…
  47. HYDROPAC 2299/092009-12-07 → 2009-12-09
    Hazardous operations 2200Z to 1300Z commencing daily 07 and 08 dec within ten miles of 16-01N 146-04E
  48. NAVAREA XII 577/092009-12-07 → 2009-12-11
    Hazardous operations 1339Z to 1523Z daily 11 thru 14 dec in areas bound by: a. 34-28N 120-39W, 34-30N…
  49. NAVAREA XII 574/092009-12-06 → 2009-12-14
    Hazardous operations 112330Z to 120500Z dec, alternate 2330Z to 0500Z commencing daily 12 thru 13 dec in…
  50. NAVAREA XII 570/092009-12-05 → 2009-12-07
    Hazardous operations 1339Z to 1523Z daily 09 thru 14 dec in areas bound by: a. 34-28N 120-39W, 34-30N…

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.

Military exercises in the North Pacific Ocean — page 71 · seahazards