Military exercises in the North Pacific Ocean

Gunnery, firing and naval exercise areas.

in force
8
last 12 months
17
vs previous 12 (30)
-43%
since 1993
4,623

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 · 8

  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. NAVAREA XII 548/26in force2026-08-13
    Hazardous operations occur off California in the North Pacific from August 18-19 and 20-21, with the notice valid until August 26.
    North Pacific · California
  3. NAVAREA XII 552/26in force2026-08-12
    Hazardous operations are underway August 19 to 20 within two miles of 32-35.87N 117-10.87W.
    North Pacific · California
  4. 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
  5. 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
  6. 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
  7. 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
  8. 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 · 29 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 · 29 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 · 29 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 · 26 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 · 26 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
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S
O
N
D

Other hazards in the North Pacific Ocean

Archive · 4,615 cancelled

  1. NAVAREA XII 567/262026-08-20 → 2026-08-20
    Hazardous operations are scheduled off California on August 25 from 1300 to 2100 UTC, with alternate on August 26, in a bounded area.
    North Pacific · California
  2. NAVAREA XII 566/262026-08-20 → 2026-08-20
    Hazardous operations are scheduled from 25 August 14:00 to 20:00 UTC, with alternate 26 August 14:00 to 20:00 UTC, within 56 miles of 35-35N 121-56W.
    North Pacific · California
  3. NAVAREA XII 561/262026-08-17 → 2026-08-19
    Hazardous operations are in effect off California from August 22 to 24, with alternate times daily, within a defined area.
    North Pacific · California
  4. NAVAREA XII 560/262026-08-17 → 2026-08-19
    Hazardous operations occur in the North Pacific from 19 to 21 August in multiple areas with specific coordinates.
    North Pacific
  5. HYDROPAC 1138/262026-04-17 → 2026-08-17
    Hazardous operations occur near Guam from April 17, 2200 UTC to April 18, 1200 UTC in an area bounded by 13-30N 145-09E, 13-30N 145-30E, 13-10N 145-30E, 13-10N 145-09E.
    North Pacific · Guam
  6. HYDROPAC 936/262026-03-27 → 2026-08-17
    Gunnery exercises daily from 31 March to 29 April, 2300Z to 0900Z, in the North Pacific.
    North Pacific
  7. HYDROPAC 3473/252025-12-27 → 2026-04-17
    Gunnery exercises 2300Z to 0900Z daily 31 dec thru 30 jan 26 in area bound by 28-15.15N 146-29.47E,…
    North Pacific
  8. HYDROPAC 3109/252025-11-26 → 2026-01-16
    Gunnery exercises 2300Z to 0900Z daily 30 nov thru 30 dec in area bound by 28-15.25N 146-29.78E, 27-55.25N…
    North Pacific
  9. HYDROPAC 3161/252025-11-25 → 2026-01-16
    Hazardous operations 050100Z to 050600Z dec in area bound by 12-50.00N 145-00.00E, 12-50.00N 145-10.00E,…
    North Pacific · Guam
  10. HYDROPAC 1546/252025-06-14 → 2025-12-04
    Gunnery exercises 182100Z to 190900Z jun, alternate 192100Z to 200900Z jun in area within 25 miles of…
    Western North Pacific
  11. HYDROPAC 1502/252025-06-11 → 2025-12-04
    Hazardous operations 162300Z to 170600Z jun in area within 100 miles of 11-15.00N 143-20.00E
    Philippine Sea · Western North Pacific · Guam
  12. HYDROPAC 1474/252025-06-03 → 2025-12-04
    Hazardous operations 130800Z to 131330Z jun, alternate 0800Z to 1330Z daily 14 jun thru 03 jul in areas…
    North Pacific · Marshall Islands
  13. HYDROPAC 1374/252025-05-27 → 2025-12-04
    Gunnery exercises 2300Z to 0900Z daily 31 may thru 29 jun in area bound by 28-15.25N 146-29.78E, 25-25.27N…
    Western North Pacific
  14. HYDROPAC 305/252025-02-06 → 2025-06-16
    Hazardous operations 0900Z to 1100Z daily 10 thru 13 feb in area bound by 17-00.00N 145-05.00E, 17-00.00N…
    Philippine Sea · Western North Pacific · Northern Mariana Islands
  15. HYDROPAC 285/252025-02-05 → 2025-06-16
    Hazardous operations 2300Z to 1300Z daily 10 thru 12 feb in areas within five miles of: a. 13-26.00N…
    Philippine Sea · Western North Pacific · Guam
  16. HYDROPAC 195/252025-01-27 → 2025-06-16
    Gunnery exercises 2300Z to 0900Z daily 31 jan thru 27 feb in area bound by 28-15.25N 146-29.78E, 25-25.27N…
    Western North Pacific
  17. HYDROPAC 3599/242024-11-21 → 2025-02-10
    Hazardous operations 242300Z to 251300Z nov in areas within five miles of: a. 13-26.00N 145-08.00E
    Philippine Sea · Western North Pacific · Guam
  18. NAVAREA XII 916/242024-11-21 → 2026-08-17
    Hazardous operations within 35 miles of 32-57N 120-41W in the Eastern North Pacific off California on November 27 from 1800 to 2200 UTC.
    Eastern North Pacific · California
  19. NAVAREA XII 914/242024-11-20 → 2026-08-17
    Off California, hazardous operations occur within 32 miles of 33-19N 120-05W until 260200Z Nov, alternate 262030Z to 270200Z Nov.
    Eastern North Pacific · California
  20. NAVAREA XII 912/242024-11-20 → 2026-08-17
    Hazardous operations occur off California from Nov 22 to 25, 2024, in an area bounded by coordinates near 32-33N 119-121W.
    Eastern North Pacific · California
  21. NAVAREA XII 900/242024-11-14 → 2026-08-17
    Hazardous operations are scheduled from 19-24 November and 10-15 December in an area off Mexico near 15°N 095°W.
    Eastern North Pacific · Mexico
  22. NAVAREA XII 899/242024-11-14 → 2026-08-17
    Hazardous operations are scheduled in the eastern North Pacific off Mexico from 19-24 November and 10-15 December, cancelled on 16 December.
    Eastern North Pacific · Mexico
  23. NAVAREA XII 898/242024-11-14 → 2024-11-22
    Hazardous operations 19 thru 24 nov and 10 thru 15 dec in area bound by 16-28.70N 100-11.00W, 16-20.70N…
    Eastern North Pacific · Mexico
  24. NAVAREA XII 897/242024-11-14 → 2026-08-17
    Hazardous operations occur 19-24 November and 10-15 December in an area bounded by 18-25N 104-50W, 18-15N 104-50W, 18-15N 104-30W, 18-25N 104-30W.
    Eastern North Pacific · Mexico
  25. NAVAREA XII 886/242024-11-07 → 2024-11-22
    Hazardous operations 121930Z to 130030Z nov, alternate 131600Z to 140030Z and 1700Z to 0130Z daily 14 thru…
    Eastern North Pacific · California
  26. NAVAREA XII 869/242024-10-29 → 2026-08-17
    Hazardous operations from November 1 to December 1 are active in a California offshore area bounded by coordinates.
    Eastern North Pacific · California
  27. NAVAREA XII 868/242024-10-29 → 2026-08-17
    Hazardous operations are ongoing from November 1 to December 1 in an area off California bounded by coordinates near 32-55N 118-25W.
    Eastern North Pacific · California
  28. NAVAREA XII 867/242024-10-29 → 2026-08-17
    Hazardous operations are underway in the Eastern North Pacific off California until December 1, 2024.
    Eastern North Pacific · California
  29. HYDROPAC 3364/242024-10-27 → 2025-02-10
    Gunnery exercises 2300Z to 0900Z daily 31 oct thru 29 nov in area bound by 28-15.25N 146-29.78E, 25-25.27N…
    Western North Pacific
  30. NAVAREA XII 857/242024-10-25 → 2026-08-17
    Hazardous operations in progress until 27 oct and 19 thru 24 nov in area bound by 24-28.70N 111-46.00W,…
    Eastern North Pacific · Mexico
  31. NAVAREA XII 856/242024-10-25 → 2026-08-17
    Hazardous operations are underway in the eastern North Pacific near Mexico until 27 October and December 3-8.
    Eastern North Pacific · Mexico
  32. NAVAREA XII 855/242024-10-25 → 2026-08-17
    Hazardous operations are in progress off Mexico's coast in the eastern North Pacific until 27 Oct and 19-24 Nov, with a cancellation message on 25 Nov.
    Eastern North Pacific · Mexico
  33. NAVAREA XII 854/242024-10-25 → 2026-08-17
    Hazardous operations are underway until 27 October and 3 through 8 December in an area off Mexico bounded by 17-08N 102-30W to 17-00N 102-45W.
    Eastern North Pacific · Mexico
  34. NAVAREA XII 853/242024-10-25 → 2026-08-17
    Hazardous operations are underway off Mexico until 27 October and from 3 to 8 December in an area near 22°N 107°W.
    Eastern North Pacific · Mexico
  35. HYDROPAC 3177/242024-10-02 → 2024-11-22
    Hazardous operations 2300Z to 1300Z daily 07 thru 09 oct in areas within five miles of: a. 13-26.00N…
    Philippine Sea · Western North Pacific · Guam
  36. HYDROPAC 3143/242024-09-26 → 2024-11-22
    Gunnery exercises 2300Z to 0900Z daily 30 sep thru 30 oct in area bound by 28-15.25N 146-29.78E, 25-25.27N…
    Western North Pacific
  37. HYDROPAC 3129/242024-09-25 → 2024-11-22
    Hazardous operations 2300Z to 1300Z daily 30 sep thru 02 oct in area within five miles of 13-26.00N 145-08.00E
    Western North Pacific · Guam
  38. NAVAREA XII 784/242024-09-24 → 2024-11-12
    Hazardous operations 1900Z to 2300Z daily 02 and 04 oct in area within 35 miles of 34-43.00N 122-03.00W
    Eastern North Pacific · United States · California
  39. NAVAREA XII 771/242024-09-23 → 2024-11-12
    Hazardous operations 1400Z to 0100Z daily 01 thru 04 oct in area bound by 33-42.00N 119-42.00W, 33-54.00N…
    Eastern North Pacific · California
  40. NAVAREA XII 323/242024-05-09 → 2024-05-16
    Hazardous operations 151900Z to 160000Z may in area bound by 34-39.47N 121-13.08W, 34-23.43N 121-02.07W,…
    Eastern North Pacific · California
  41. HYDROPAC 1536/242024-05-08 → 2024-05-16
    Hazardous operations 2300Z to 1300Z daily 13 thru 15 may in areas within five miles of: a. 13-26.00N…
    Philippine Sea · Guam
  42. NAVAREA XII 309/242024-05-04 → 2024-05-09
    Hazardous operations 091900Z to 092200Z may in area bound by 33-53.45N 120-27.05W, 33-43.15N 119-46.30W,…
    Eastern North Pacific · California
  43. NAVAREA XII 308/242024-05-03 → 2024-05-08
    Hazardous operations 081630Z to 082230Z may in area bound by 33-49.71N 119-32.29W, 33-22.68N 119-09.16W,…
    Eastern North Pacific · California
  44. NAVAREA XII 305/242024-05-03 → 2024-05-09
    Hazardous operations 082000Z to 090130Z may in area bound by 34-39.78N 121-13.13W, 34-23.72N 121-02.12W,…
    Eastern North Pacific · California
  45. NAVAREA XII 304/242024-05-03 → 2024-05-03
    Gunnery exercises 081800Z to 090001Z may in area within 14 miles of 57-01.04N 136-26.40W
    Eastern North Pacific · Alaska
  46. HYDROPAC 1466/242024-05-03 → 2024-05-09
    Hazardous operations 082300Z to 091300Z may in areas within five miles of: a. 13-26.00N 145-08.00E
    Philippine Sea · Western North Pacific · Guam
  47. NAVAREA XII 296/242024-05-01 → 2024-05-03
    Gunnery exercises 021800Z to 030000 may in area within 15 miles of 57-01.04N 136-26.40W
    Eastern North Pacific · Alaska
  48. HYDROPAC 1436/242024-05-01 → 2024-05-08
    Hazardous operations 2300Z to 1300Z daily 06 and 07 may in area within five miles of 13-26.00N 145-08.00E
    Western North Pacific · Guam
  49. HYDROPAC 1383/242024-04-26 → 2024-05-31
    Gunnery exercises 2300Z to 0900Z daily 30 apr thru 30 may in area bound by 28-15.25N 146-29.78E, 27-55.25N…
    Western North Pacific
  50. NAVAREA XII 287/242024-04-26 → 2024-06-01
    Hazardous operations 10800Z may to 010800Z jun in area bound by 32-55.00N 118-25.00W, 32-55.00N 118-15.00W,…
    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 · seahazards