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
J
J
A
S
O
N
D

Other hazards in the North Pacific Ocean

Archive · 4,620 cancelled

  1. HYDROPAC 1408/042004-08-31 → 2004-09-01
    Hazardous operations 020001Z to 030900Z sep within ten miles of 16-01N 146-04E
  2. HYDROPAC 1404/042004-08-30 → 2004-09-03
    Hazardous operations 020001Z to 030900Z sep within ten miles of 16-01N 146-04E
  3. HYDROPAC 1402/042004-08-30 → 2004-09-03
    Hazardous operations 030630Z to 031230Z sep, alternate 0630Z to 1230Z daily 04 and 05 sep in areas bound by:…
  4. HYDROPAC 1385/042004-08-27 → 2004-09-30
    Gunnery exercises 2300Z to 0900Z commencing daily 31 aug thru 29 sep in area bound by 27-55-15N 144-57-48E,…
  5. HYDROPAC 1361/042004-08-20 → 2004-08-28
    Hazardous operations 2145Z to 0330Z commencing daily 25 thru 28 aug in area bound by 09-24N 167-28E, 09-24N…
  6. HYDROPAC 1332/042004-08-14 → 2004-08-18
    Hazardous operations 0645Z to 1215Z daily 15 thru 18 aug in areas bound by: a. 09-24N 167-28E, 12-36N…
  7. HYDROPAC 1316/042004-08-12 → 2004-08-14
    Hazardous operations 0645Z to 1215Z daily 15 thru 17 aug in areas bound by: a. 09-24N 167-28E, 12-36N…
  8. HYDROPAC 1297/042004-08-09 → 2004-08-14
    Hazardous operations 0645Z to 1215Z daily until 14 aug in areas bound by: a. 09-24N 167-28E, 12-36N 163-37E,…
  9. HYDROPAC 1264/042004-08-04 → 2004-08-09
    Hazardous operations 0645Z to 1215Z daily 08 thru 14 aug in areas bound by: a. 09-24N 167-28E, 12-36N…
  10. HYDROPAC 1253/042004-08-02 → 2004-08-06
    Hazardous operations 2230Z to 2330Z daily 04 and 05 aug within 216 miles of 31-55N 153-45E
  11. HYDROPAC 1224/042004-07-28 → 2004-08-07
    Hazardous operations 0645Z to 1215Z daily 02 thru 07 aug in areas bound by: a. 009-24N 167-28E, 012-36N…
  12. HYDROPAC 1188/042004-07-20 → 2004-07-25
    Hazardous operations 230701Z to 231501Z jul, alternate 24 and 25 jul in areas bound by: a. 08-43N 163-43E,…
  13. HYDROPAC 1169/042004-07-16 → 2004-07-23
    Hazardous operations 0701Z to 1501Z daily 21 thru 23 jul in areas bound by: a. 09-08N 167-07E, 09-23N…
  14. HYDROPAC 1144/042004-07-12 → 2004-07-17
    Hazardous operations 2100Z to 0300Z commencing daily 16 thru 20 jul in area bound by 31-00N 170-05W, 34-45N…
  15. NAVAREA XII 204/042004-07-10 → 2004-07-15
    Hazardous operations 0931Z to 1105Z daily 13 thru 15 jul in area bound by 08-45N 127-21W, 14-32N 126-10W,…
  16. NAVAREA XII 202/042004-07-08 → 2004-07-13
    Hazardous operations 0931Z to 1105Z daily 11 thru 13 jul in area bound by 08-45N 127-21W, 14-32N 126-10W,…
  17. NAVAREA XII 200/042004-07-07 → 2004-07-18
    Hazardous operations 2000Z to 0500Z commencing daily 12 jul thru 12 aug in area bound by 07-00N 092-22W,…
  18. HYDROPAC 1055/042004-06-25 → 2004-07-31
    Gunnery exercises 2300Z to 0900Z commencing daily 30 jun thru 30 jul in area bound by 27-55-15N 144-57-48E,…
  19. HYDROPAC 1018/042004-06-18 → 2004-06-25
    Hazardous operations 0200Z to 0600Z daily 23 thru 25 jun in area bound by 52-30.0N 159-44.5E, 52-45.0N…
  20. HYDROPAC 1012/042004-06-18 → 2004-06-25
    Hazardous operations 0701Z to 1501Z daily 23 thru 25 jun in area bound by: 09-17N 167-23E, 09-23N 167-33E,…
  21. HYDROPAC 1002/042004-06-17 → 2004-06-18
    Hazardous operations 172200Z to 172359Z jun within 216 miles of 31-55N 153-45E
  22. HYDROPAC 986/042004-06-14 → 2004-06-14
    Hazardous operations 141401Z to 151359Z jun within ten miles of 16-01N 146-04E
  23. HYDROPAC 968/042004-06-09 → 2004-06-16
    Gunnery exercises 2100Z to 0500Z commencing daily 14 and 15 jun in area bound by 52-30.0N 159-17.0E,…
  24. HYDROPAC 825/042004-05-09 → 2004-05-10
    Hazardous operations 091401Z to 101359Z may within ten miles of 16-01N 146-04E
  25. HYDROPAC 788/042004-05-02 → 2004-05-03
    Hazardous operations 030300Z to 030730Z may, alternate 0300Z to 0730Z daily 04 and 05 may in area bound by…
  26. HYDROPAC 775/042004-04-30 → 2004-05-02
    Hazardous operations 020300Z to 020730Z may, alternate 0300Z to 0730Z daily 03 and 04 may in area bound by…
  27. HYDROPAC 774/042004-04-30 → 2004-05-03
    Hazardous operations 0330Z to 0730Z commencing daily 01 thru 04 may in area bound by 25-52N 179-00W, 26-35N…
  28. NAVAREA XII 151/042004-04-30 → 2004-05-03
    Hazardous operations 0330Z to 0730Z commencing daily 01 thru 04 may in area bound by 25-52N 179-00W, 26-35N…
  29. HYDROPAC 771/042004-04-29 → 2004-04-30
    Hazardous operations 020330Z to 020530Z may, alternate 0330Z to 0530Z daily 03 and 04 may in area bound by…
  30. HYDROPAC 739/042004-04-26 → 2004-04-29
    Hazardous operations 010330Z to 010530Z may, alternate 0330Z to 0530Z daily 02 thru 04 may in area bound by…
  31. HYDROPAC 734/042004-04-25 → 2004-04-30
    Hazardous operations 1900Z to 0700Z commencing daily 30 apr thru 04 may in area bound by 25-52N 179-00W,…
  32. NAVAREA XII 146/042004-04-25 → 2004-04-30
    Hazardous operations 1900Z to 0700Z commencing daily 30 apr thru 04 may in area bound by 25-52N 179-00W,…
  33. HYDROPAC 725/042004-04-23 → 2004-04-29
    Hazardous operations 0001Z to 0200Z daily 27 and 29 apr within ten miles of 16-01N 146-04E
  34. NAVAREA XII 139/042004-04-16 → 2004-04-24
    Hazardous operations 1700Z to 2000Z daily 20 thru 24 apr in area bound by 15-00N 178-05E, 11-30N 179-05E,…
  35. HYDROPAC 678/042004-04-16 → 2004-04-24
    Hazardous operations 1700Z to 2000Z daily 20 thru 24 apr in area bound by 15-00N 178-05E, 11-30N 179-05E,…
  36. HYDROPAC 676/042004-04-15 → 2004-04-16
    Hazardous operations 1700Z to 0200Z commencing daily 20 thru 24 apr in area bound by 15-00N 178-05E, 11-30N…
  37. NAVAREA XII 101/042004-03-21 → 2004-03-24
    Hazardous operations 0731Z to 1501Z daily 24 thru 27 mar in areas bound by: a. 34-50N 121-03W, 34-51N…
  38. HYDROPAC 516/042004-03-20 → 2004-03-25
    Hazardous operations 240701Z to 241501Z mar, alternate 0701Z to 1501Z daily 25 and 26 mar in areas bound by:…
  39. HYDROPAC 462/042004-03-12 → 2004-03-17
    Hazardous operations 2300Z to 0030Z commencing daily 15 and 16 mar within 216 miles of 31-55N 153-45E
  40. HYDROPAC 456/042004-03-10 → 2004-03-12
    Hazardous operations 2300Z to 0030Z commencing daily 14 and 15 mar within 216 miles of 31-55N 153-45E
  41. NAVAREA XII 68/042004-02-20 → 2004-03-02
    Hazardous operations 0611Z to 1130Z daily 25 feb thru 26 mar in area bound by 06-23N 090-45W, 04-17N…
  42. HYDROPAC 260/042004-02-11 → 2004-02-18
    Hazardous operations 0001Z to 0600Z daily 16 thru 18 feb in area bound by 52-30.5N 159-29.0E, 52-37.8N…
  43. HYDROPAC 135/042004-01-23 → 2004-01-27
    Hazardous operations 1401Z to 2101Z daily 27 thru 29 jan in area bound by 08-51N 166-30E, 08-43N 167-43E,…
  44. HYDROPAC 134/042004-01-23 → 2004-01-27
    Hazardous operations 0001Z to 0801Z daily 27 thru 29 jan in areas bound by: a. 11-33N 169-31E, 10-18N…
  45. NAVAREA XII 5/042004-01-05 → 2004-01-12
    Hazardous operations 1730Z to 0059Z commencing daily 09 thru 11 jan in areas: a. between 34-50N 34-53N and…
  46. NAVAREA XII 366/032003-12-10 → 2003-12-17
    Hazardous operations 1730Z to 0059Z commencing daily 15 thru 19 dec in areas: a. between 34-50N 34-53N and…
  47. HYDROPAC 2133/032003-12-06 → 2003-12-11
    Hazardous operations 1730Z to 1930Z daily 10 and 11 dec within 216 miles of 31-55N 153-45E
  48. NAVAREA XII 365/032003-12-06 → 2003-12-11
    Hazardous operations 111730Z to 120030Z dec, alternate 1730Z to 0030Z commencing daily 12 and 13 dec in area…
  49. NAVAREA XII 359/032003-12-02 → 2003-12-06
    Hazardous operations 0600Z to 0730Z and 1100Z to 1230Z daily 05 and 06 dec within 76 miles of 06-18N 152-19W
  50. NAVAREA XII 354/032003-11-27 → 2003-12-02
    Hazardous operations 0733Z to 1129Z daily 02 thru 04 dec in areas bound by: a. 34-25N 120-27W, 34-24N…

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 84 · seahazards