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 · 33 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 · 33 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 · 33 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
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J
A
S
O
N
D

Other hazards in the North Pacific Ocean

Archive · 4,620 cancelled

  1. NAVAREA XII 324/012001-11-05 → 2001-11-14
    Hazardous operations 1724Z to 1910Z daily 09 thru 14 nov and 1602Z to 1748Z daily 15 thru 20 nov in areas…
  2. HYDROPAC 1770/012001-11-02 → 2001-11-07
    Hazardous operations 0701Z to 1601Z daily 07 thru 09 nov in areas bound by: a. 09-08N 167-07E, 09-23N…
  3. NAVAREA XII 323/012001-11-02 → 2001-11-05
    Hazardous operations 0731Z to 1501Z daily 07 thru 09 nov in areas bound by: a. 34-49N 121-01W, 34-50N…
  4. HYDROPAC 1690/012001-10-19 → 2001-10-25
    Hazardous operations 2100Z to 0400Z commencing daily 23 and 24 oct in areas bound by: a. 52-50.0N 159-14.0E,…
  5. NAVAREA XII 301/012001-10-13 → 2001-10-19
    Hazardous operations 1821Z to 2006Z daily 18 thru 22 oct in areas bound by: a. 34-28N 120-39W, 34-30N…
  6. NAVAREA XII 289/012001-10-03 → 2001-10-06
    Hazardous operations 051830Z to 052359Z oct in areas bound by: a. 34-23N 120-37W, 34-23N 120-43W, 34-38N…
  7. NAVAREA XII 287/012001-10-03 → 2001-10-03
    Hazardous operations 041830Z to 042359Z oct in areas bound by: a. 34-23N 120-37W, 34-23N 120-43W, 34-38N…
  8. NAVAREA XII 284/012001-10-01 → 2001-10-03
    Hazardous operations 031830Z to 032359Z oct in areas bound by: a. 34-23N 120-37W, 34-23N 120-43W, 34-38N…
  9. NAVAREA XII 281/012001-10-01 → 2001-10-01
    Hazardous operations 1830Z to 2359Z daily 02 and 03 oct in areas bound by: a. 34-23N 120-37W, 34-23N…
  10. NAVAREA XII 277/012001-09-26 → 2001-10-01
    Hazardous operations 1830Z to 2359Z daily 01 thru 03 oct in areas bound by: a. 34-23N 120-37W, 34-23N…
  11. NAVAREA XII 274/012001-09-22 → 2001-09-27
    Hazardous operations 271500Z to 272000Z sep, alternate 1500Z to 2000Z daily 28 and 29 sep in area bound by…
  12. NAVAREA XII 266/012001-09-18 → 2001-09-21
    Hazardous operations 1819Z to 2007Z daily 21 thru 24 sep in areas bound by: a. 34-23N 120-44W, 34-24N…
  13. NAVAREA XII 262/012001-09-16 → 2001-09-18
    Hazardous operations 1819Z to 2007Z daily 21 thru 24 sep in areas bound by: a. 34-23N 120-44W, 34-24N…
  14. HYDROPAC 1473/012001-09-10 → 2001-09-13
    Hazardous operations 0701Z to 1701Z daily 14 thru 17 sep in areas bound by: a. 09-08N 167-07E, 09-23N…
  15. HYDROPAC 1472/012001-09-10 → 2001-09-13
    Hazardous operations 0731Z to 1601Z daily 14 thru 17 sep in areas bound by: a. 12-38N 173-05E, 12-57N…
  16. NAVAREA XII 255/012001-09-10 → 2001-09-13
    Hazardous operations 0731Z to 1601Z daily 14 thru 17 sep in areas bound by: a. 34-50N 120-56W, 34-52N…
  17. HYDROPAC 1461/012001-09-08 → 2001-09-16
    Hazardous operations 132200Z to 140700Z and 2000Z to 0700Z commencing daily 14 and 15 sep in area bound by…
  18. NAVAREA XII 247/012001-09-03 → 2001-09-08
    Hazardous operations 1426Z to 1637Z daily 08 thru 10 sep in areas bound by: a. 34-25N 120-27W, 34-24N…
  19. HYDROPAC 1423/012001-08-30 → 2001-09-07
    Hazardous operations 1730Z to 2330Z daily 05 and 06 sep 52-31.3N 159-29.2E, 52-39.0N 159-29.2E, 52-39.0N…
  20. HYDROPAC 1396/012001-08-26 → 2001-08-29
    Hazardous operations 290406Z to 290932Z aug, alternate 0406Z to 0932Z daily 30 aug thru 30 sep in areas…
  21. NAVAREA XII 235/012001-08-25 → 2001-09-03
    Hazardous operations 1930Z to 0300Z commencing daily 31 aug thru 03 sep in areas bound by: a. 34-25N…
  22. NAVAREA XII 228/012001-08-20 → 2001-08-21
    Hazardous operations 1738Z to 1956Z daily 25 thru 27 aug in areas bound by: a. 34-25N 120-28W, 34-24N…
  23. HYDROPAC 1360/012001-08-20 → 2001-08-22
    Hazardous operations 250406Z to 250932Z aug, alternate 0406Z to 0932Z daily 26 aug thru 30 sep in areas…
  24. HYDROPAC 1327/012001-08-16 → 2001-08-22
    Hazardous operations 0200Z to 0700Z daily 21 and 22 aug in area bound by 51-24.6N 161-11.6E, 52-26.5N…
  25. HYDROPAC 1299/012001-08-12 → 2001-08-16
    Hazardous operations 0500Z to 0800Z daily 15 and 16 aug in area bound by 52-26.5N 159-29.5E, 52-38.9N…
  26. NAVAREA XII 218/012001-08-10 → 2001-08-13
    Hazardous operations 1630Z to 2359Z daily 17 thru 20 aug in areas bound by: a. 34-51N 120-01W, 34-52N…
  27. NAVAREA XII 199/012001-07-23 → 2001-07-27
    Hazardous operations 0730Z to 1501Z daily 27 thru 31 jul in areas bound by: a. 34-48N 120-59W, 34-49N…
  28. HYDROPAC 1166/012001-07-23 → 2001-07-27
    Hazardous operations 0730Z to 1501Z daily 27 thru 31 jul in areas bound by: a. 34-48N 120-59W, 34-49N…
  29. HYDROPAC 1151/012001-07-20 → 2001-07-29
    Hazardous operations 0701Z to 1601Z daily 26 thru 29 jul in areas bound by: a. 08-48N 167-30E, 08-43N…
  30. HYDROPAC 1150/012001-07-20 → 2001-07-23
    Hazardous operations 0730Z to 1501Z daily 26 thru 30 jul in areas bound by: a. 34-48N 120-59W, 34-49N…
  31. NAVAREA XII 196/012001-07-20 → 2001-07-23
    Hazardous operations 0730Z to 1501Z daily 26 thru 30 jul in areas bound by: a. 34-48N 120-59W, 34-49N…
  32. NAVAREA XII 189/012001-07-16 → 2001-07-17
    Hazardous operations 0131Z to 0701Z daily 21 thru 23 jul in areas bound by: a. 34-51N 120-57W, 34-53N…
  33. HYDROPAC 1111/012001-07-14 → 2001-07-23
    Hazardous operations 2000Z to 0500Z commencing daily 19 and 22 jul within 30 miles of 52-52N 163-53E
  34. HYDROPAC 1082/012001-07-10 → 2001-07-15
    Hazardous operations 150031Z to 150830Z jul, alternate daily 16 and 17 jul in area bound by 12-00N 162-00E,…
  35. HYDROPAC 1081/012001-07-10 → 2001-07-15
    Hazardous operations 150200Z to 150830Z jul, alternate daily 16 and 17 jul in area bound by 08-51N 166-30E,…
  36. NAVAREA XII 179/012001-07-10 → 2001-07-15
    Hazardous operations 0131Z to 0701Z daily 15 thru 17 jul in areas bound by: a. 34-48N 120-56W, 34-51N…
  37. NAVAREA XII 176/012001-07-06 → 2001-07-13
    Hazardous operations 2000Z to 0231Z commencing daily 12 jul thru 12 aug in area bound by 05-23N 087-54W,…
  38. HYDROPAC 912/012001-06-15 → 2001-06-22
    Hazardous operations 212200Z to 220315Z jun in area bound by 08-51N 168-30E, 08-43N 167-43E, 07-51N 166-52E
  39. HYDROPAC 765/012001-05-19 → 2001-05-24
    Hazardous operations 2230Z to 0430Z commencing daily 22 and 23 may in area bound by 52-26.5N 159-29.5E,…
  40. HYDROPAC 737/012001-05-15 → 2001-05-15
    Hazardous operations 172200Z to 180315Z may in area bound by 08-51N 166-30E, 08-43N 167-43E, 07-51N 166-52E
  41. HYDROPAC 732/012001-05-14 → 2001-05-18
    Hazardous operations 172200Z to 180315Z may in area bound by 08-51N 166-30E, 08-43N 167-43E, 07-51N 166-52E
  42. HYDROPAC 650/012001-04-28 → 2001-04-30
    Hazardous operations 020001Z to 020315Z may in area bound by 08-51N 166-30E, 08-43N 167-43E, 07-51N 166-52E
  43. HYDROPAC 646/012001-04-28 → 2001-04-30
    Hazardous operations 020001Z to 020315Z may in area bound by 08-51N 166-30E, 08-43N 167-43E, 07-51N 166-52E
  44. HYDROPAC 556/012001-04-14 → 2001-04-20
    Hazardous operations 191855Z to 192041Z apr, alternate 201904Z to 202050Z apr within 105 miles a trackline…
  45. NAVAREA XII 115/012001-04-14 → 2001-04-20
    Hazardous operations 191855Z to 192041Z apr, alternate 201904Z to 202050Z apr within 105 miles a trackline…
  46. HYDROPAC 506/012001-04-04 → 2001-04-10
    Hazardous operations 0330Z to 0500Z daily 06 thru 10 apr within 108 miles of 31-55N 153-45E
  47. NAVAREA XII 96/012001-03-22 → 2001-03-31
    Hazardous operations 2200Z to 0300Z commencing daily 22 thru 30 mar in area bound by 53-53.0N 143-46.5W,…
  48. NAVAREA XII 77/012001-03-02 → 2001-03-08
    Hazardous operations 2000Z to 0248Z commencing daily 08 mar thru 08 apr in area bound by 07-54N 140-24W,…
  49. HYDROPAC 256/012001-02-16 → 2001-02-21
    Hazardous operations 1727Z to 2256Z daily 21 thru 23 feb in area bound by 19-21N 166-55E, 16-36N 168-18E,…
  50. HYDROPAC 191/012001-02-07 → 2001-02-09
    Hazardous operations 072326Z to 080115Z feb, alternate 082303Z to 090049Z feb within 105 miles of a…

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.