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 · 29 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 · 29 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 112/082008-01-20 → 2008-01-20
    Hazardous operations 230030Z to 230300Z jan in area bound by 09-03N 167-42E, 09-03N 168-00E, 10-00N 168-00E,…
  2. HYDROPAC 107/082008-01-19 → 2008-01-23
    Hazardous operations 230030Z to 230300Z jan in area bound by 09-03N 167-42E, 09-03N 168-00E, 10-00N 168-00E,…
  3. HYDROPAC 2272/072007-12-28 → 2008-01-31
    Gunnery exercises 2300Z to 0900Z commencing daily 31 dec thru 30 jan 08 in area bound by 27-55-15N…
  4. HYDROPAC 2254/072007-12-26 → 2007-12-27
    Hazardous operations 270245Z to 270800Z dec within 12 miles of 16-01N 146-04E
  5. NAVAREA XII 360/072007-12-15 → 2007-12-22
    Hazardous operations 20 dec thru 20 jan 08 in area bound by 08-00N 100-38W, 06-04N 100-42W, 06-23N 113-47W,…
  6. HYDROPAC 2157/072007-12-06 → 2007-12-10
    Hazardous operations 0001Z to 0130Z daily 09 thru 12 dec within 275 miles of 31-55N 153-45E
  7. HYDROPAC 2146/072007-12-05 → 2007-12-06
    Hazardous operations 060030Z to 060800Z dec within ten miles of 16-01N 146-04E
  8. NAVAREA XII 347/072007-12-04 → 2007-12-05
    Gunnery exercises 042300Z to 050200Z dec within 11 miles of 32-46N 159-27W
  9. NAVAREA XII 345/072007-12-03 → 2007-12-10
    Hazardous operations 0231Z to 0341Z daily 05 thru 10 dec in area bound by 34-29N 120-40W, 34-31N 120-46W,…
  10. HYDROPAC 2079/072007-11-26 → 2007-12-31
    Gunnery exercises 2300Z to 0900Z commencing daily 30 nov thru 30 dec in area bound by 27-55-15N 144-57-48E,…
  11. NAVAREA XII 329/072007-11-25 → 2007-11-30
    Hazardous operations 0630Z to 1730Z daily 29 and 30 nov in areas: a. bound by 35-06N 129-30W, 34-24N…
  12. HYDROPAC 2001/072007-11-15 → 2007-11-21
    Hazardous operations 2230Z to 2330Z daily 17 thru 20 nov within 216 miles of 31-55N 153-45E
  13. NAVAREA XII 303/072007-11-08 → 2003-11-10
    Gunnery exercises 100001Z to 100100Z nov within six miles of 42-15N 170-00W
  14. NAVAREA XII 289/072007-11-03 → 2007-11-09
    Gunnery exercises 082100Z to 090100Z nov and 091600Z to 092200Z nov within five miles of 58-02.3N 137-06.7W
  15. HYDROPAC 1866/072007-10-28 → 2007-11-30
    Gunnery exercises 2300Z to 0900Z commencing daily 31 oct thru 29 nov in area bound by 27-55-15N 144-57-48E,…
  16. NAVAREA XII 269/072007-10-14 → 2007-10-14
    Gunnery exercises 141600Z to 142000Z oct vicinity 53-43.0N 165-12.7W
  17. HYDROPAC 1701/072007-10-03 → 2007-10-13
    Hazardous operations 091830Z to 100400Z, 101830Z to 110400Z, 111830Z to 120400Z and 121830Z to 130400Z oct…
  18. HYDROPAC 1640/072007-09-26 → 2007-10-31
    Gunnery exercises 2300Z to 0900Z commencing daily 30 sep thru 30 oct in area bound by 27-55-15N 144-57-48E,…
  19. HYDROPAC 1631/072007-09-24 → 2007-09-28
    Hazardous operations 2230Z to 0600Z commencing daily 24 thru 27 sep within ten miles of 16-01N 146-04E
  20. HYDROPAC 1605/072007-09-17 → 2007-09-21
    Hazardous operations 2230Z to 0630Z commencing daily 17 thru 20 sep within ten miles of 16-01N 146-04E
  21. HYDROPAC 1600/072007-09-17 → 2007-10-07
    Hazardous operations 18 sep thru 06 oct in area bound by 13-10N 144-30E, 13-10N 144-42E, 12-50N 144-45E,…
  22. HYDROPAC 1597/072007-09-16 → 2007-09-16
    Hazardous operations 2230Z to 0630Z commencing daily 17 thru 20 sep in area bound by 13-10N 144-43E, 13-10N…
  23. HYDROPAC 1593/072007-09-16 → 2007-09-21
    Hazardous operations 2230 to 0630Z commencing daily 17 thru 20 sep within ten miles of 16-01N 146-04E
  24. HYDROPAC 1591/072007-09-16 → 2007-09-21
    Hazardous operations 2230Z to 0630Z commencing daily 17 thru 20 sep in area bound by 13-10N 144-43E, 13-10N…
  25. NAVAREA XII 225/072007-09-13 → 2007-09-20
    Hazardous operations 1805Z to 1949Z daily 18 thru 20 sep in areas bound by: a. 34-26N 120-40W, 34-27N…
  26. NAVAREA XII 224/072007-09-10 → 2007-09-16
    Hazardous operations 120700Z to 121230Z, alternate 140700Z to 141230Z and 160700Z to 161230Z sep in area…
  27. HYDROPAC 1548/072007-09-08 → 2007-09-14
    Hazardous operations 130139Z to 130208Z sep, alternate 0117Z to 0630Z daily 14 thru 21 sep in area: a.…
  28. HYDROPAC 1531/072007-09-02 → 2007-09-07
    Hazardous operations 2030Z to 0530Z commencing daily 03 thru 06 sep within ten miles of 16-01N 146-04E
  29. HYDROPAC 1491/072007-08-27 → 2007-09-30
    Gunnery exercises 2300Z to 0900Z commencing daily 31 aug thru 29 sep in area bound by 27-55-15N 144-57-48E,…
  30. HYDROPAC 1486/072007-08-26 → 2007-08-30
    Hazardous operations 0100Z to 0630Z daily 27 thru 30 aug in area bound by 13-10N 144-43E, 13-10N 144-30E,…
  31. HYDROPAC 1485/072007-08-26 → 2007-08-30
    Hazardous operations 0100Z to 1300Z daily 27 thru 30 aug within ten miles of 16-01N 146-04E
  32. HYDROPAC 1429/072007-08-15 → 2007-09-01
    Hazardous operations 1201Z to 1830Z daily 22 aug thru 01 sep in area bound by 17-30.0N 170-00.0E, 19-45.6N…
  33. HYDROPAC 1415/072007-08-13 → 2007-08-23
    Hazardous operations 171024Z to 171215Z aug, alternate 190933Z to 191123Z aug, 210842Z to 211032Z aug,…
  34. NAVAREA XII 198/072007-08-13 → 2007-08-23
    Hazardous operations 171024Z to 171215Z, alternate 190933Z to 191123Z, 210842Z to 211032Z, and 230750Z to…
  35. HYDROPAC 1408/072007-08-11 → 2007-08-20
    Hazardous operations 2200Z to 1500Z commencing daily 16 thru 19 aug within ten miles of 16-01N 146-04E
  36. HYDROPAC 1389/072007-08-09 → 2007-08-15
    Hazardous operations 0001Z to 1200Z daily 14 and 15 aug within ten miles of 16-01N 146-04E
  37. HYDROPAC 1381/072007-08-08 → 2007-08-12
    Hazardous operations 2200Z to 0700Z commencing daily 09 thru 11 aug within ten miles of 16-01N 146-04E
  38. HYDROPAC 1358/072007-08-05 → 2007-08-05
    Hazardous operations 052230Z to 061130Z aug in area bound by 13-10N 144-43E, 13-10N 144-30E, 12-45N 144-30E,…
  39. HYDROPAC 1355/072007-08-04 → 2007-08-06
    Hazardous operations 052230Z to 061130Z aug in area bound by 13-10N 144-43E, 13-10N 144-30E, 12-45N 144-30E,…
  40. HYDROPAC 1333/072007-08-01 → 2007-08-04
    Hazardous operations 03 thru 19 aug in area bound by 13-10N 144-30E, 13-10N 144-42E, 12-50N 144-45E, 12-50N…
  41. HYDROPAC 1327/072007-08-01 → 2007-08-20
    Hazardous operations 03 thru 19 aug in area bound by 13-10N 144-30E, 13-10N 144-42E, 12-50N 144-45E, 12-50N…
  42. NAVAREA XII 182/072007-07-31 → 2007-08-02
    Hazardous operations 011200Z to 020500Z aug in area bound by 12-50N 145-10E, 11-25N 147-00E, 10-30N 147-00E,…
  43. HYDROPAC 1319/072007-07-31 → 2007-08-03
    Hazardous operations 01 and 02 aug in area bound by 12-50N 145-10E, 11-25N 147-00E, 10-30N 147-00E, 10-30N…
  44. HYDROPAC 1312/072007-07-29 → 2007-07-31
    Hazardous operations 2330Z to 0630Z commencing daily 29 and 30 jul within ten miles of 16-01N 146-04E
  45. HYDROPAC 1304/072007-07-27 → 2007-08-31
    Gunnery exercises 2300Z to 0900Z commencing daily 31 jul thru 30 aug in area bound by 27-55-15N 144-57-48E,…
  46. HYDROPAC 1300/072007-07-27 → 2007-07-31
    Hazardous operations 01 to 02 aug in area bound by 12-50N 145-10E, 12-50N 147-00E, 10-30N 147-00E, 10-30N…
  47. NAVAREA XII 176/072007-07-20 → 2007-07-31
    Hazardous operations 260350Z to 260920Z jul, alternate 280350Z to 280920Z jul and 310350Z to 310920Z jul in…
  48. HYDROPAC 1268/072007-07-20 → 2007-07-26
    Hazardous operations 260350Z to 260920Z jul, alternate 280350Z to 280920Z jul and 310350Z to 310920Z jul in…
  49. HYDROPAC 1223/072007-07-14 → 2007-07-20
    Hazardous operations 2230Z to 0700Z commencing daily 15 thru 19 jul in area bound by 13-10N 144-43E, 13-10N…
  50. HYDROPAC 1217/072007-07-13 → 2007-07-19
    Hazardous operations 2230Z to 0700Z comencing daily 15 thru 19 jul within ten miles of 16-01N 146-04E

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 77 · seahazards