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 · 31 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 · 31 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 · 31 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 · 27 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 · 27 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 339/202020-08-01 → 2020-08-08
    Hazardous operations 041500Z to 042359Z, 051500Z to 052359Z, 061500Z to 062359Z aug, alternate 071500Z to…
    Eastern North Pacific · California
  2. HYDROPAC 2256/202020-07-31 → 2020-08-05
    Hazardous operations 030300Z to 051355Z aug in areas within three miles of: a. 13-26N 145-08E
    Western North Pacific · Philippine Sea · Guam
  3. NAVAREA XII 337/202020-07-31 → 2020-08-01
    Hazardous operations: a. 0631Z to 1345Z daily 04 thru 07 aug in area bound by 34-23N 124-24W, 34-36N…
    North Pacific · California
  4. HYDROPAC 2246/202020-07-30 → 2020-08-06
    Gunnery exercises 032100Z to 041000Z aug, alternate 2100Z to 1000Z daily 04 and 05 aug in area within 25…
    Western North Pacific
  5. HYDROPAC 2245/202020-07-30 → 2020-08-05
    Hazardous operations 040720Z to 041402Z aug, alternate 050700Z to 051342Z aug in area bound by 09-16N…
    North Pacific
  6. HYDROPAC 2229/202020-07-28 → 2020-07-29
    Hazardous operations 290300Z to 291355Z jul in areas within three miles of: a. 13-26N 145-08E
    Western North Pacific · Philippine Sea · Guam
  7. HYDROPAC 2218/202020-07-27 → 2020-09-30
    Gunnery exercises 2300Z to 0900Z daily 31 jul thru 29 sep in area bound by 28-15-15N 146-29-47E, 25-25-16N…
    Western North Pacific
  8. HYDROPAC 2217/202020-07-27 → 2020-07-28
    Hazardous operations 280300Z to 281355Z jul in areas within three miles of: a. 13-26N 145-08E
    Western North Pacific · Philippine Sea · Guam
  9. HYDROPAC 2183/202020-07-24 → 2020-07-27
    Hazardous operations 270300Z to 271355Z jul in areas within three miles of: a. 13-26N 145-08E
    Western North Pacific · Philippine Sea · Guam
  10. HYDROPAC 2174/202020-07-23 → 2020-07-31
    Gunnery exercises 2100Z to 1300Z daily 27 thru 29 jul, alternate 302100Z to 311300Z jul in area within 25…
    Western North Pacific
  11. NAVAREA XII 318/202020-07-23 → 2020-08-01
    Hazardous operations 1300Z to 2330Z daily 28 thru 31 jul in area bound by 33-56N 119-40W, 33-41N 119-11W,…
    Eastern North Pacific · California
  12. NAVAREA XII 317/202020-07-23 → 2020-08-01
    Hazardous operations 1300Z to 2330Z daily 28 thru 31 jul in area bound by 33-18N 119-26W, 33-24N 119-30W,…
    Eastern North Pacific · California
  13. NAVAREA XII 310/202020-07-21 → 2020-07-25
    Hazardous operations 241300Z to 250001Z jul, alternate 251300Z to 260001Z jul in area bound by 33-44-08N…
    Eastern North Pacific · California
  14. HYDROPAC 2138/202020-07-20 → 2020-07-23
    Hazardous operations 0300Z to 1355Z daily 22 and 23 jul in areas within three miles of: a. 13-26N 145-08E
    Western North Pacific · Philippine Sea · Guam
  15. HYDROPAC 2137/202020-07-20 → 2020-07-21
    Hazardous operations 210300Z to 211355Z jul in areas within three miles of: a. 13-26N 145-08E
    Western North Pacific · Philippine Sea · Guam
  16. HYDROPAC 2113/202020-07-17 → 2020-07-21
    Hazardous operations 211530Z to 212130Z jul in area within ten miles of 34-22N 121-15W
    Eastern North Pacific · California
  17. NAVAREA XII 308/202020-07-17 → 2020-07-21
    Hazardous operations 211530Z to 212130Z jul in area within ten miles of 34-22N 121-15W
    Eastern North Pacific · California
  18. HYDROPAC 2091/202020-07-15 → 2020-07-16
    Hazardous operations 152300Z to 160500Z jul in area bound by 13-10N 144-30E, 13-10N 144-42E, 12-50N 144-45E,…
    Western North Pacific · Guam
  19. HYDROPAC 2090/202020-07-15 → 2020-07-16
    Hazardous operations 160300Z to 161355Z jul in areas within three miles of: a. 13-26N 145-08E
    Western North Pacific · Philippine Sea · Guam
  20. NAVAREA XII 305/202020-07-14 → 2020-07-23
    Hazardous operations 160700Z to 230700Z jul within one mile of trackline joining 32-49-20N 118-22-58W,…
    Eastern North Pacific · California
  21. HYDROPAC 2084/202020-07-14 → 2020-07-15
    Hazardous operations 150300Z to 151355Z jul in areas within three miles of: a. 13-26N 145-08E
    Western North Pacific · Philippine Sea · Guam
  22. HYDROPAC 2065/202020-07-13 → 2020-07-14
    Hazardous operations 140300Z to 141355Z jul in areas within three miles of: a. 13-26N 145-08E
    Western North Pacific · Philippine Sea · Guam
  23. HYDROPAC 2044/202020-07-10 → 2020-07-17
    Gunnery exercises 2200Z to 1200Z daily 14 thru 16 jul in area within 25 miles of 31-14-14N 144-26-48E
    Western North Pacific
  24. HYDROPAC 2031/202020-07-10 → 2020-07-13
    Hazardous operations 130300Z to 131355Z jul in areas within three miles of: a. 13-26N 145-08E
    Western North Pacific · Philippine Sea · Guam
  25. NAVAREA XII 297/202020-07-10 → 2020-07-17
    Hazardous operations 2000Z to 0300Z commencing daily 15 and 16 jul in area bound by 34-01N 119-20W, 33-25N…
    Eastern North Pacific · California
  26. HYDROPAC 2012/202020-07-07 → 2020-07-08
    Hazardous operations 080300Z to 081355Z jul in areas within three miles of: a. 13-26N 145-08E
    Western North Pacific · Philippine Sea · Guam
  27. HYDROPAC 1996/202020-07-05 → 2020-07-07
    Hazardous operations 070300Z to 071355Z jul in areas within three miles of: a. 13-26N 145-08E
    Western North Pacific · Philippine Sea · Guam
  28. HYDROPAC 1991/202020-07-05 → 2020-07-06
    Hazardous operations 060300Z to 061355Z jul in areas within three miles of: a. 13-26N 145-08E
    Western North Pacific · Philippine Sea · Guam
  29. HYDROPAC 1981/202020-07-03 → 2020-07-03
    Hazardous operations 040200Z to 040700Z jul in areas within three miles of: a. 13-26N 145-08E
    Western North Pacific · Philippine Sea · Guam
  30. HYDROPAC 1977/202020-07-03 → 2020-07-09
    Gunnery exercises 072200Z to 080900Z alternate 082200Z to 090900Z jul in area within 25 miles of 31-14-14N…
    Western North Pacific
  31. HYDROPAC 1953/202020-07-01 → 2020-07-02
    Hazardous operations 020300Z to 021355Z jul in areas within three miles of: a. 13-26N 145-08E
    Western North Pacific · Philippine Sea · Guam
  32. HYDROPAC 1941/202020-06-30 → 2020-07-01
    Hazardous operations 010300Z to 011355Z jul in areas within three miles of: a. 13-26N 145-08E
    Western North Pacific · Philippine Sea · Guam
  33. HYDROPAC 1924/202020-06-29 → 2020-06-30
    Hazardous operations 300300Z to 301355Z jun in areas within three miles of: a. 13-26N 145-08E
    Western North Pacific · Philippine Sea · Guam
  34. HYDROPAC 1920/202020-06-28 → 2020-06-29
    Hazardous operations 290300Z to 291355Z jun in areas within three miles of: a. 13-26N 145-08E
    Western North Pacific · Philippine Sea · Guam
  35. HYDROPAC 1919/202020-06-28 → 2020-06-28
    Hazardous operations 281400Z to 281500Z jun in area bound by 13-10N 144-30E, 13-10N 144-42E, 12-50N 144-45E,…
    Western North Pacific · Guam
  36. HYDROPAC 1898/202020-06-26 → 2020-07-31
    Gunnery exercises 2300Z to 0900Z daily 30 jun thru 30 jul in area bound by 28-15-15N 146-29-47E, 25-25-16N…
    Western North Pacific
  37. HYDROPAC 1866/202020-06-24 → 2020-06-26
    Hazardous operations 291700Z to 300100Z jun in area bound by 34-06N 119-08W, 34-05N 119-06W, 34-04N 119-05W,…
    Eastern North Pacific · California
  38. NAVAREA XII 279/202020-06-24 → 2020-06-30
    Hazardous operations 291700Z to 300100Z jun in area bound by 34-06N 119-08W, 34-05N 119-06W, 34-04N 119-05W,…
    Eastern North Pacific · California
  39. NAVAREA XII 272/202020-06-22 → 2020-06-27
    Hazardous operations 261330Z to 270001Z jun in area bound by 33-26-50N 119-51-00W, 33-29-00N 119-25-00W,…
    Eastern North Pacific · California
  40. HYDROPAC 1813/202020-06-19 → 2020-06-20
    Hazardous operations 200300Z to 201355Z jun in areas within three miles of: a. 13-26N 145-08E
    Western North Pacific · Philippine Sea · Guam
  41. HYDROPAC 1803/202020-06-18 → 2020-06-19
    Hazardous operations 190300Z to 191355Z jun in areas within three miles of: a. 13-26N 145-08E
    Western North Pacific · Philippine Sea · Guam
  42. HYDROPAC 1802/202020-06-18 → 2020-06-19
    Hazardous operations 190001Z to 190400Z jun in area bound by 13-18.0N 144-30.6E, 13-18.0N 144-42.0E,…
    Western North Pacific · Guam
  43. NAVAREA XII 263/202020-06-18 → 2020-06-28
    Hazardous operations 231500Z to 232359Z, 241500Z to 242359Z and 251500Z to 252359Z jun alternate 271500Z to…
    Eastern North Pacific · California
  44. NAVAREA XII 262/202020-06-17 → 2020-06-23
    Hazardous operations 221600Z to 230100Z jun in area bound by 34-06N 119-08W, 34-05N 119-06W, 34-04N 119-05W,…
    Eastern North Pacific · California
  45. HYDROPAC 1788/202020-06-17 → 2020-06-18
    Hazardous operations 180300Z to 181355Z jun in areas within three miles of: a. 13-26N 145-08E
    Western North Pacific · Philippine Sea · Guam
  46. HYDROPAC 1777/202020-06-16 → 2020-06-17
    Hazardous operations 170300Z to 171355Z jun in areas within three miles of: a. 13-26N 145-08E
    Western North Pacific · Philippine Sea · Guam
  47. NAVAREA XII 261/202020-06-15 → 2020-06-19
    Hazardous operations 16 thru 18 jun in area bound by 15-34N 093-55W, 15-26N 093-41W, 15-21N 093-44W, 15-28N…
    Eastern North Pacific · Mexico
  48. NAVAREA XII 260/202020-06-15 → 2020-06-19
    Hazardous operations 16 thru 18 jun in area bound by 16-28.1N 100-11.0W, 16-20.1N 099-51.1W, 16-06.1N…
    Eastern North Pacific · Mexico
  49. NAVAREA XII 259/202020-06-15 → 2020-06-19
    Hazardous operations 16 thru 18 jun in area bound by 18-25N 104-50W, 18-15N 104-50W, 18-15N 104-30W, 18-25N…
    Eastern North Pacific · Mexico
  50. NAVAREA XII 256/202020-06-15 → 2020-06-19
    Hazardous operations 181630Z to 182230Z jun in area bound by 33-56N 119-14W, 33-46N 119-08W, 33-24N 120-06W,…
    Eastern North Pacific · California

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 27 · seahazards