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. HYDROPAC 2069/112011-07-20 → 2011-07-22
    Hazardous operations
    North Pacific · Mariana Islands
  2. HYDROPAC 2050/112011-07-17 → 2011-07-21
    Hazardous operations
    North Pacific · Mariana Islands
  3. HYDROPAC 1996/112011-07-12 → 2011-07-12
    Hazardous operations
    North Pacific · Mariana Islands
  4. HYDROPAC 1990/112011-07-11 → 2011-07-13
    Hazardous operations
    Philippine Sea · Mariana Islands
  5. HYDROPAC 1985/112011-07-10 → 2011-07-14
    Hazardous operations
    North Pacific · Mariana Islands
  6. NAVAREA XII 259/112011-07-09 → 2011-07-12
    Gunnery exercises: a. 102000Z to 110400Z jul within five miles of 54-44N 134-18W
    Gulf of Alaska · Gunnery
  7. NAVAREA XII 255/112011-07-06 → 2011-07-09
    Gunnery exercises 091700Z to 092000Z jul within 30000 yards of: a. 33-19N 135-29W
    Eastern North Pacific · Gunnery
  8. NAVAREA XII 254/112011-07-06 → 2011-07-22
    Hazardous operations
    Mexico-south Coast
  9. HYDROPAC 1935/112011-07-05 → 2011-07-05
    Hazardous operations
    North Pacific · Mariana Islands
  10. HYDROPAC 1869/112011-06-27 → 2011-06-30
    Hazardous operations
    North Pacific · Mariana Islands
  11. HYDROPAC 1852/112011-06-26 → 2011-07-31
    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 · Gunnery
  12. HYDROPAC 1846/112011-06-25 → 2011-06-27
    Hazardous operations
    North Pacific · Mariana Islands
  13. HYDROPAC 1845/112011-06-25 → 2011-06-28
    Hazardous operations
    North Pacific · Mariana Islands
  14. NAVAREA XII 247/112011-06-24 → 2011-06-25
    Hazardous operations
    Gulf of Alaska
  15. HYDROPAC 1829/112011-06-23 → 2011-06-24
    Hazardous operations
    North Pacific · Mariana Islands
  16. HYDROPAC 1775/112011-06-19 → 2011-06-22
    Hazardous operations
    North Pacific
  17. NAVAREA XII 239/112011-06-19 → 2011-06-22
    Hazardous operations
    Eastern North Pacific · California
  18. HYDROPAC 1773/112011-06-18 → 2011-06-22
    Hazardous operations
    North Pacific · Mariana Islands
  19. HYDROPAC 1714/112011-06-12 → 2011-06-17
    Hazardous operations
    North Pacific · Mariana Islands
  20. NAVAREA XII 221/112011-06-11 → 2011-06-16
    Gunnery exercises: a. 142000Z to 150400Z jun within five miles of 54-44N 134-18W
    Gulf of Alaska · Gunnery
  21. NAVAREA XII 213/112011-06-04 → 2011-06-10
    Hazardous operations
    Eastern North Pacific
  22. NAVAREA XII 208/112011-06-01 → 2011-06-03
    Gunnery exercises 022300Z to 030200Z jun, alternate 030200Z to 030500Z jun within four miles of 58-00N 138-00W
    Gulf of Alaska · Gunnery
  23. HYDROPAC 1612/112011-05-31 → 2011-06-01
    Hazardous operations
    North Pacific · Mariana Islands
  24. HYDROPAC 1609/112011-05-31 → 2011-06-02
    Hazardous operations
    North Pacific · Mariana Islands
  25. HYDROPAC 1600/112011-05-30 → 2011-05-31
    Hazardous operations
    North Pacific · Mariana Islands
  26. HYDROPAC 1586/112011-05-27 → 2011-06-30
    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 · Gunnery
  27. HYDROPAC 1463/112011-05-16 → 2011-05-18
    Hazardous operations
    North Pacific · Mariana Islands
  28. NAVAREA XII 187/112011-05-06 → 2011-05-22
    Hazardous operations
    Mexico-south Coast · Gulf of Tehuantepec
  29. NAVAREA XII 184/112011-05-06 → 2011-05-08
    Gunnery exercises 072300Z to 080001Z may within 16 miles of: a. 45-17.2N 154-33.1W
    North Pacific · Gunnery
  30. NAVAREA XII 181/112011-05-03 → 2011-05-05
    Hazardous operations
    Eastern North Pacific · California
  31. HYDROPAC 1343/112011-05-02 → 2011-05-04
    Hazardous operations
    North Pacific · Mariana Islands
  32. HYDROPAC 1342/112011-05-02 → 2011-05-02
    Hazardous operations
    North Pacific · Mariana Islands
  33. HYDROPAC 1287/112011-04-27 → 2011-04-28
    Hazardous operations
    North Pacific · Mariana Islands
  34. HYDROPAC 1273/112011-04-26 → 2011-04-27
    Hazardous operations
    North Pacific · Mariana Islands
  35. HYDROPAC 1271/112011-04-26 → 2011-05-31
    Gunnery exercises 2300Z to 0900Z commencing daily 30 apr thru 30 may in area bound by 27-55-15N 144-57-48E,…
    Western North Pacific · Gunnery
  36. HYDROPAC 1255/112011-04-25 → 2011-04-26
    Hazardous operations
    North Pacific · Mariana Islands
  37. HYDROPAC 1244/112011-04-23 → 2011-04-25
    Hazardous operations
    North Pacific · Mariana Islands
  38. HYDROPAC 1213/112011-04-21 → 2011-04-22
    Hazardous operations
    North Pacific · Mariana Islands
  39. HYDROPAC 1210/112011-04-20 → 2011-04-21
    Hazardous operations
    North Pacific · Mariana Islands
  40. HYDROPAC 1186/112011-04-18 → 2011-04-19
    Hazardous operations
    North Pacific · Mariana Islands
  41. HYDROPAC 1175/112011-04-15 → 2011-04-16
    Hazardous operations
    North Pacific · Mariana Islands
  42. NAVAREA XII 150/112011-04-13 → 2011-04-20
    Hazardous operations
    North Pacific
  43. NAVAREA XII 133/112011-04-06 → 2011-04-22
    Hazardous operations
    Eastern North Pacific · Mexico-southwest Coast
  44. HYDROPAC 1064/112011-04-05 → 2011-04-07
    Hazardous operations
    North Pacific · Mariana Islands
  45. HYDROPAC 1029/112011-04-01 → 2011-04-02
    Hazardous operations
    North Pacific · Mariana Islands
  46. HYDROPAC 1003/112011-03-30 → 2011-04-01
    Hazardous operations
    North Pacific · Mariana Islands
  47. HYDROPAC 968/112011-03-27 → 2011-04-30
    Gunnery exercises 2300Z to 0900Z commencing daily 31 mar thru 29 apr in area bound by 27-55-15N 144-57-48E,…
    Western North Pacific · Gunnery
  48. HYDROPAC 963/112011-03-27 → 2011-03-30
    Hazardous operations
    North Pacific · Mariana Islands
  49. NAVAREA XII 114/112011-03-26 → 2011-03-27
    Hazardous operations
    Gulf of Alaska
  50. NAVAREA XII 112/112011-03-23 → 2011-03-26
    Hazardous operations
    Gulf of Alaska

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 68 · seahazards