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. NAVAREA XII 568/092009-12-04 → 2009-12-06
    Hazardous operations 082330Z to 090500Z dec, alternate 2330Z to 0500Z commencing daily 09 thru 11 dec in…
  2. NAVAREA XII 565/092009-12-01 → 2009-12-05
    Hazardous operations 022000Z to 022359Z dec, alternate 2000Z to 2359Z daily 03 and 04 dec in area bound by…
  3. NAVAREA XII 560/092009-11-29 → 2009-12-05
    Gunnery exercises: a. 031930Z to 040200Z dec within five miles of 52-34N 153-16W
  4. HYDROPAC 2208/092009-11-26 → 2009-12-01
    Hazardous operations 2100Z to 2330Z daily 29 nov thru 02 dec within 290 miles of 35-56.1N 148-39.1E
  5. HYDROPAC 2205/092009-11-26 → 2009-12-31
    Gunnery exercises 2300Z to 0900Z commencing daily 30 nov thru 30 dec in area bound by 27-55-15N 144-57-48E,…
  6. HYDROPAC 2152/092009-11-20 → 2009-12-05
    Gunnery exercises 2100Z to 0900Z commencing daily 24 and 25 nov, alternate 26 nov thru 04 dec within 25…
  7. HYDROPAC 2144/092009-11-19 → 2009-11-25
    Hazardous operations 1400Z to 1530Z daily 23 thru 26 nov within 216 miles of 31-55N 153-45E
  8. NAVAREA XII 548/092009-11-19 → 2009-11-25
    Gunnery exercises 242030Z to 242330Z nov in area bound by 36-52N 123-10W, 35-20N 122-06W, 35-04N 122-43W,…
  9. HYDROPAC 2061/092009-11-10 → 2009-11-13
    Hazardous operations 2200Z to 1359Z commencing daily 10 thru 12 nov within ten miles of 16-01N 146-04E
  10. NAVAREA XII 535/092009-11-08 → 2009-11-22
    Hazardous operations 11 thru 21 nov in area bound by 15-46.2N 093-40.0W, 15-40.2N 093-32.0W, 15-35.5N…
  11. HYDROPAC 2033/092009-11-06 → 2009-11-17
    Hazardous operations 092300Z to 100900Z nov, alternate 2300Z to 0900Z commencing daily 10 thru 16 nov within…
  12. HYDROPAC 2021/092009-11-05 → 2009-11-06
    Hazardous operations 092300Z to 100900Z nov, alternate 2300Z to 0900Z commencing daily 10 thru 16 nov within…
  13. NAVAREA XII 525/092009-11-03 → 2009-11-06
    Hazardous operations 1600Z to 1900Z and 2100Z to 2359Z commencing daily 03 thru 05 nov in areas: a. bound by…
  14. NAVAREA XII 521/092009-11-01 → 2009-11-06
    Hazardous operations 060130Z to 060700Z nov, alternate 0130Z to 0700Z daily 07 thru 10 nov in area bound by…
  15. HYDROPAC 1945/092009-10-27 → 2009-11-30
    Gunnery exercises 2300Z to 0900Z commencing daily 31 oct thru 29 nov in area bound by 27-55-15N 144-57-48E,…
  16. HYDROPAC 1944/092009-10-27 → 2009-10-28
    Hazardous operations 0400Z to 0800Z daily 27 and 28 oct within ten miles of 16-01N 146-04E
  17. NAVAREA XII 499/092009-10-24 → 2009-10-28
    Hazardous operations 280130Z to 280700Z oct, alternate 0130Z to 0700Z daily 29 thru 31 oct in area bound by…
  18. HYDROPAC 1930/092009-10-24 → 2009-10-26
    Hazardous operations 252000Z to 260001Z oct within 30 miles of 36-40N 146-00E
  19. HYDROPAC 1924/092009-10-23 → 2009-10-24
    Hazardous operations 240100Z to 240400Z oct within 30 miles of 36-00N 152-30E
  20. HYDROPAC 1896/092009-10-18 → 2009-10-22
    Hazardous operations 190100Z to 191359Z, 200900Z to 201359Z, 0100Z to 1359Z daily 21 and 22 oct within ten…
  21. HYDROPAC 1892/092009-10-17 → 2009-10-18
    Hazardous operations 182200Z to 181359Z oct within ten of miles 16-01N 146-04E
  22. NAVAREA XII 482/092009-10-15 → 2009-10-17
    Hazardous operations 170130Z to 170700Z oct, alternate 0130Z to 0700Z daily 18 and 20 oct in area bound by…
  23. HYDROPAC 1873/092009-10-15 → 2009-10-16
    Hazardous operations 152200Z to 161359Z oct within ten of miles 16-01N 146-04E
  24. NAVAREA XII 481/092009-10-14 → 2009-10-16
    Hazardous operations 0001Z to 0700Z daily 14 thru 16 oct in areas bound by: a. 30-33N 128-10W, 29-36N…
  25. NAVAREA XII 480/092009-10-13 → 2009-10-20
    Hazardous operations 1542Z to 1722Z daily 18 thru 21 oct in areas bound by: a. 34-26N 120-36W, 34-27N…
  26. NAVAREA XII 479/092009-10-12 → 2009-10-15
    Hazardous operations 170130Z to 170700Z oct, alternate 0130Z to 0700Z daily 18 and 20 oct in area bound by…
  27. HYDROPAC 1849/092009-10-12 → 2009-10-14
    Hazardous operations 2200Z to 1400Z commencing daily 12 and 13 oct within ten of miles 16-01N 146-04E
  28. NAVAREA XII 469/092009-10-10 → 2009-10-16
    Hazardous operations 140130Z to 140700Z oct, alternate 0130Z to 0700Z daily 15 and 16 oct in area bound by…
  29. HYDROPAC 1820/092009-10-07 → 2009-10-09
    Hazardous operations 082000Z to 090400Z oct within six miles of 36-21-52N 147-12-41E
  30. NAVAREA XII 458/092009-10-06 → 2009-10-22
    Hazardous operations 11 thru 21 oct in area bound by 17-47N 102-00W, 17-53N 102-00W, 17-46N 101-49W, 17-42N…
  31. HYDROPAC 1805/092009-10-05 → 2009-10-06
    Hazardous operations 052000Z to 061400Z oct in area bound by 17-00N 147-00E, 17-00N 147-10E, 16-15N 148-00E,…
  32. HYDROPAC 1802/092009-10-05 → 2009-10-06
    Hazardous operations 052000Z to 061359Z oct within ten miles of 16-01N 146-04E
  33. NAVAREA XII 453/092009-10-04 → 2009-10-09
    Hazardous operations 1808Z to 1952Z daily 08 thru 13 oct in areas bound by: a. 34-26N 120-40W, 34-27N…
  34. HYDROPAC 1735/092009-09-26 → 2009-10-31
    Gunnery exercises 2300Z to 0900Z commencing daily 30 sep thru 30 oct in area bound by 27-55-15N 144-57-48E,…
  35. NAVAREA XII 437/092009-09-24 → 2009-09-26
    Hazardous operations 251730Z to 260001Z in areas: a. bound by 30-55N 117-30W, 30-55N 116-40W, 29-35N…
  36. HYDROPAC 1648/092009-09-13 → 2009-09-20
    Hazardous operations 1900Z to 2030Z daily 17 thru 20 sep within 216 miles of 31-55N 153-45E
  37. HYDROPAC 1633/092009-09-10 → 2009-09-11
    Hazardous operations 110500Z to 111300Z sep within ten of miles 16-01N 146-04E
  38. NAVAREA XII 412/092009-09-10 → 2009-09-14
    Hazardous operations 122000Z to 140100Z sep in area bound by 24-30N 173-00W, 22-00N 173-30W, 20-10N 166-55W,…
  39. NAVAREA XII 411/092009-09-09 → 2009-09-22
    Hazardous operations 11 thru 21 sep in area bound by 15-46.2N 093-40.0W, 15-40.2N 093-32.0W, 15-35.5N…
  40. HYDROPAC 1616/092009-09-07 → 2009-09-11
    Hazardous operations 101706Z to 101824Z sep, alternate 1418Z to 1800Z daily 12 thru 17 sep in areas bound…
  41. HYDROPAC 1532/092009-08-27 → 2009-09-30
    Gunnery exercises 2300Z to 0900Z commencing daily 31 aug thru 29 sep in area bound by 27-55-15N 144-57-48E,…
  42. HYDROPAC 1519/092009-08-25 → 2009-08-27
    Gunnery exercises 262000Z to 270300Z aug within 10,000 yards of 28-33N 166-14E
  43. NAVAREA XII 379/092009-08-25 → 2009-08-26
    Gunnery exercises 260001Z to 260700Z aug vicinity 28-33N 166-14W
  44. NAVAREA XII 377/092009-08-24 → 2009-08-25
    Gunnery exercises 270200Z to 270300Z aug within 10,000 yards of 28-33N 166-14W
  45. HYDROPAC 1485/092009-08-20 → 2009-08-29
    Hazardous operations 2200Z to 0100Z commencing daily 25, 26 and 28 aug, 0300Z to 0600Z and 0800Z to 1100Z…
  46. HYDROPAC 1467/092009-08-18 → 2009-08-24
    Hazardous operations 0901Z to 1728Z daily 23 and 24 aug: a. in area bound by 10-16N 168-39E, 09-34N 169-02E,…
  47. HYDROPAC 1466/092009-08-18 → 2009-08-24
    Hazardous operations 0931Z to 1731Z daily 23 thru 26 aug in area bound by 14-50N 174-07E, 16-49N 177-44E,…
  48. NAVAREA XII 365/092009-08-18 → 2009-08-24
    Hazardous operations 0931Z to 1731Z daily 23 thru 26 aug in areas bound by: a. 34-50N 121-02W, 34-52N…
  49. HYDROPAC 1447/092009-08-14 → 2009-08-20
    Hazardous operations 0300Z to 1400Z daily 17 thru 20 aug within ten miles of 16-01N 146-04E
  50. HYDROPAC 1426/092009-08-10 → 2009-08-13
    Hazardous operations 2200Z to 0800Z commencing daily 09 thru 12 aug within ten miles of 16-01N 146-04E

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 72 · seahazards