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 279/072007-02-13 → 2007-02-16
    Hazardous operations 2200Z to 1200Z commencing daily until 15 feb within ten miles of 16-01N 146-04E
  2. HYDROPAC 275/072007-02-13 → 2007-02-16
    Hazardous operations 2200Z to 1200Z commencing daily 12 thru 15 feb within ten miles of 16-01N 146-04E
  3. HYDROPAC 257/072007-02-09 → 2007-02-13
    Hazardous operations 2200Z to 1200Z commencing daily 13 thru 15 feb within ten miles of 16-01N 146-04E
  4. HYDROPAC 256/072007-02-09 → 2007-02-12
    Hazardous operations 112230Z to 120700Z feb within ten miles of 16-01N 146-04E
  5. NAVAREA XII 39/072007-02-06 → 2007-02-09
    Hazardous operations 0801Z to 1401Z daily 07 thru 09 feb in areas: a. between 34-48N 34-50N and 121-00W…
  6. HYDROPAC 236/072007-02-06 → 2007-02-09
    Hazardous operations 0801Z to 1401Z daily 07 thru 09 feb in areas: a. between 34-48N 34-50N and 121-00W…
  7. HYDROPAC 212/072007-02-01 → 2007-02-07
    Hazardous operations 0701Z to 1528Z daily 07 thru 09 feb in areas bound by: a. 06-18.0N 162-42.0E, 07-42.0N…
  8. HYDROPAC 184/072007-01-27 → 2007-02-28
    Gunnery exercises 2300Z to 0900Z commencing daily 31 jan thru 27 feb in area bound by 27-55-15N 144-57-48E,…
  9. HYDROPAC 116/072007-01-17 → 2007-01-26
    Hazardous operations 2230Z to 0400Z commencing daily 21 thru 25 jan in area bound by 09-06.0N 167-34.2E,…
  10. NAVAREA XII 17/072007-01-16 → 2007-01-27
    Hazardous operations 2230Z to 0400Z daily 21 thru 26 jan in area bound by 09-06.0N 167-34.2E, 09-21.0N…
  11. HYDROPAC 2552/062006-12-28 → 2007-01-31
    Gunnery exercises 2300Z to 0900Z commencing daily 31 dec thru 30 jan 07 in area bound by 27-55-15N…
  12. HYDROPAC 2464/062006-12-16 → 2007-02-28
    Hazardous operations 180632Z to 180644Z dec, alternate 0607Z to 0753Z daily 19 dec thru 28 feb 07 in areas…
  13. NAVAREA XII 332/062006-12-12 → 2006-12-20
    Hazardous operations 1900Z to 0200Z commencing daily 14 thru 19 dec in: a. area bound by 34-32N 120-39W,…
  14. HYDROPAC 2410/062006-12-11 → 2006-12-16
    Hazardous operations 160639Z to 160717Z dec, alternate 0607Z to 0753Z daily 17 dec thru 28 feb 07 in areas…
  15. HYDROPAC 2395/062006-12-08 → 2006-12-15
    Hazardous operations 0200Z to 0630Z daily 11 thru 15 dec within ten miles of 16-01N 146-04E
  16. HYDROPAC 2390/062006-12-08 → 2006-12-08
    Hazardous operations 0200Z to 0630Z daily 11 thru 15 dec within ten miles of 16-01N 146-04E
  17. HYDROPAC 2384/062006-12-07 → 2006-12-13
    Hazardous operations 2300Z to 0030Z commencing daily 11 thru 14 dec within 216 miles of 31-55N 153-45E
  18. HYDROPAC 2298/062006-11-26 → 2006-12-31
    Gunnery exercises 2300Z to 0900Z commencing daily 30 nov thru 30 dec in area bound by 27-55-15N 144-57-48E,…
  19. HYDROPAC 2247/062006-11-19 → 2006-11-22
    Hazardous operations 0250Z to 0430Z daily 20 thru 22 nov within ten miles of 16-01N 146-04E
  20. HYDROPAC 2109/062006-11-04 → 2006-11-11
    Hazardous operations 2000Z to 2100Z daily 08 thru 11 nov in ellipse shaped area centered in 24-23N 161-46E
  21. NAVAREA XII 285/062006-11-01 → 2006-11-04
    Hazardous operations 1453Z to 1703Z daily 04 thru 07 nov in: a. area bound by 34-22N 120-36W, 34-23N…
  22. HYDROPAC 2087/062006-11-01 → 2006-11-04
    Hazardous operations 1453Z to 1703Z daily 04 thru 07 nov in: a. area bound by 34-22N 120-36W, 34-23N…
  23. NAVAREA XII 279/062006-10-30 → 2006-11-01
    Hazardous operations 1453Z to 1703Z daily 04 thru 07 nov in: a. area bound by 34-22N 120-36W, 34-23N…
  24. HYDROPAC 2063/062006-10-30 → 2006-11-01
    Hazardous operations 1453Z to 1703Z daily 04 thru 07 nov in: a. area bound by 34-22N 120-36W, 34-23N…
  25. HYDROPAC 2062/062006-10-30 → 2006-11-30
    Gunnery exercises 2300Z to 0900Z commencing daily 31 oct thru 29 nov in area bound by 27-55-15N 144-57-48E,…
  26. HYDROPAC 1880/062006-09-26 → 2006-10-31
    Gunnery exercises 2300Z to 0900Z commencing daily 30 sep thru 30 oct in area bound by 27-55-15N 144-57-48E,…
  27. HYDROPAC 1860/062006-09-23 → 2006-09-28
    Hazardous operations 260230Z to 280700Z sep within ten miles of 16-01N 146-04E
  28. HYDROPAC 1856/062006-09-22 → 2006-09-28
    Hazardous operations 260230Z to 280700Z sep within ten miles of 16-01N 146-04E
  29. HYDROPAC 1845/062006-09-20 → 2006-10-05
    Hazardous operations 2100Z to 0900Z commencing daily 24 and 25 sep, alternate 26 sep thru 04 oct within 25…
  30. HYDROPAC 1731/062006-09-04 → 2006-09-30
    Gunnery exercises 2300Z to 0900Z commencing daily until 29 sep in area bound by 27-55-15N 144-57-48E,…
  31. NAVAREA XII 221/062006-08-29 → 2006-09-04
    Hazardous operations 1330Z to 1900Z daily 31 aug thru 04 sep in areas: a. bound by 34-52N 120-51W, 34-52N…
  32. HYDROPAC 1666/062006-08-27 → 2006-08-31
    Hazardous operations 2200Z to 0800Z commencing daily 27 thru 30 aug within ten miles of 16-01N 146-04E
  33. HYDROPAC 1652/062006-08-26 → 2006-08-28
    Hazardous operations 2200Z to 0800Z commencing daily 27 and 29 aug within ten miles of 16-01N 146-04E
  34. HYDROPAC 1644/062006-08-25 → 2006-08-28
    Hazardous operations 2200Z to 0800Z commencing daily 27 thru 29 aug within ten miles of 16-01N 146-04E
  35. HYDROPAC 1577/062006-08-18 → 2006-08-21
    Hazardous operations 210600Z to 211230Z aug within ten miles of 16-01N 146-04E
  36. HYDROPAC 1576/062006-08-18 → 2006-08-26
    Hazardous operations 2300Z to 1230Z commencing daily 22 thru 25 aug within ten miles of 16-01N 146-04E
  37. HYDROPAC 1569/062006-08-17 → 2006-08-18
    Hazardous operations 180100Z to 180300Z aug within ten miles of 16-01N 146-04E
  38. HYDROPAC 1560/062006-08-16 → 2006-08-22
    Hazardous operations 2000Z to 2200Z daily 19 and 20 aug and 220001Z to 220200Z daily in area bound by…
  39. HYDROPAC 1559/062006-08-16 → 2006-08-25
    Hazardous operations 2300Z to 0200Z commencing daily 21 thru 24 aug and 0400Z to 0700Z daily 22 thru 25 aug…
  40. HYDROPAC 1543/062006-08-15 → 2006-08-17
    Hazardous operations 0415Z to 1230Z daily 16 and 17 aug within ten miles of 16-01N 146-04E
  41. HYDROPAC 1474/062006-08-04 → 2006-08-09
    Hazardous operations 2200Z to 0001Z commencing daily 07 and 08 aug in area bound by 51-58.0N 160-21.4E,…
  42. NAVAREA XII 190/062006-08-03 → 2006-08-05
    Hazardous operations 2000Z to 0100Z commencing daily 03 and 04 aug in area bound by 32-51N 119-16W, 33-17N…
  43. HYDROPAC 1436/062006-07-31 → 2006-08-08
    Hazardous operations 2130Z to 2300Z daily 04 thru 07 aug in area centered 31-55N 153-45E
  44. HYDROPAC 1435/062006-07-30 → 2006-08-03
    Gunnery exercises 2330Z to 0900Z commencing daily 30 jul thru 02 aug within ten miles of 16-01N 146-04E
  45. HYDROPAC 1414/062006-07-27 → 2006-08-31
    Gunnery exercises 2300Z to 0900Z commencing daily 31 jul thru 30 aug in area bound by 27-55-15N 144-57-48E,…
  46. NAVAREA XII 187/062006-07-26 → 2006-08-03
    Hazardous operations 011730Z to 011930Z, 012230Z to 020030Z, 021730Z to 021930Z and 022230Z to 030030Z aug…
  47. HYDROPAC 1365/062006-07-20 → 2006-07-27
    Gunnery exercises 2300Z to 0200Z commencing daily 25 and 26 jul and 0400Z to 0600Z daily 26 and 27 jul in…
  48. HYDROPAC 1363/062006-07-20 → 2006-07-24
    Hazardous operations 0801Z to 1401Z daily 20 thru 24 jul in areas bound by: a. 14-44N 175-41E, 13-58N…
  49. HYDROPAC 1361/062006-07-19 → 2006-07-24
    Hazardous operations 0701Z to 1501Z daily 20 thru 24 jul in area bound by 10-16N 168-41E, 09-35N 169-05E,…
  50. NAVAREA XII 183/062006-07-19 → 2006-07-24
    Hazardous operations 0801Z to 1401Z daily 20 thru 24 jul in areas bound by: a. 34-50N 121-04W, 34-51N…

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 79 · seahazards