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 62/062006-03-09 → 2006-03-12
    Hazardous operations 092030Z to 100100Z mar, alternate 102030Z to 110100Z mar, and 112030Z thru 120100Z mar…
  2. HYDROPAC 380/062006-03-07 → 2006-03-17
    Hazardous operations 2300Z to 1359Z commencing daily 07 thru 16 mar within ten miles of 16-01N 146-04E
  3. HYDROPAC 310/062006-02-25 → 2006-03-31
    Gunnery exercises 2300Z to 0900Z commencing daily 28 feb thru 30 mar in area bound by 27-55-15N 144-57-48E,…
  4. HYDROPAC 301/062006-02-24 → 2006-03-01
    Hazardous operations 2000Z to 2100Z daily 28 feb thru 03 mar within 216 miles of 24-23N 161-46E
  5. HYDROPAC 294/062006-02-23 → 2006-03-17
    Hazardous operations 2300Z to 1359Z commencing daily 27 feb thru 16 mar within ten miles of 16-01N 146-04E
  6. HYDROPAC 275/062006-02-21 → 2006-02-22
    Hazardous operations 180630Z to 180812Z feb, alternate 0630Z to 0812Z daily 19 thru 28 feb in areas bound…
  7. NAVAREA XII 44/062006-02-17 → 2006-02-24
    Hazardous operations 1600Z to 2000Z daily 20, 21 and 24 feb in areas bound by: a. 41-09N 138-21W, 39-03N…
  8. HYDROPAC 260/062006-02-16 → 2006-02-21
    Hazardous operations 180630Z to 180812Z feb, alternate 0630Z to 0812Z daily 19 thru 28 feb in areas bound…
  9. HYDROPAC 252/062006-02-14 → 2006-02-17
    Hazardous operations 0701Z to 1501Z daily 16 and 17 feb in area bound by: a. 06-18N 162-50E, 07-40N 162-19E,…
  10. HYDROPAC 140/062006-01-27 → 2006-01-30
    Hazardous operations 2200Z to 1400Z commencing daily 23 jan thru 07 aug within ten miles of 16-01N 146-04E
  11. HYDROPAC 137/062006-01-26 → 2006-02-27
    Gunnery exercises 2300Z to 0900Z commencing daily 31 jan thru 27 feb in area bound by 27-55-15N 144-57-48E,…
  12. HYDROPAC 112/062006-01-23 → 2006-03-06
    Hazardous operations 2000Z to 1359Z commencing daily 23 jan thru 07 aug within ten miles of 16-01N 146-04E
  13. HYDROPAC 2219/052005-12-26 → 2006-01-31
    Gunnery exercises 2300Z to 0900Z commencing daily 31 dec thru 30 jan in area bound by 27-55-15N 144-57-48E,…
  14. HYDROPAC 2207/052005-12-24 → 2005-12-31
    Hazardous operations 0200Z to 0330Z daily 29 thru 31 dec within 216 miles 31-55N 153-45E
  15. HYDROPAC 2115/052005-12-12 → 2005-12-16
    Hazardous operations 2300Z to 0430Z commencing daily 12 thru 15 dec within ten miles of 16-01N 146-04E
  16. HYDROPAC 2101/052005-12-09 → 2005-12-20
    Hazardous operations 0101Z to 0900Z daily 13 thru 20 dec in areas bound by: a. 08-54N 167-45E, 08-54N…
  17. HYDROPAC 2088/052005-12-09 → 2005-12-10
    Hazardous operations 100100Z to 100600Z dec in area bound by 08-51N 166-30E, 08-43N 167-43E, 07-51N 166-52E
  18. HYDROPAC 2052/052005-12-06 → 2005-12-14
    Hazardous operations 090100Z to 090500Z dec and 0400Z to 1600Z daily 13 thru 20 dec in area bound by 08-51N…
  19. HYDROPAC 2029/052005-12-02 → 2005-12-06
    Hazardous operations 0200Z to 0330Z daily 06 thru 09 dec within 216 miles of 31-55N 153-45E
  20. HYDROPAC 1987/052005-11-26 → 2005-12-31
    Gunnery exercises 2300Z to 0900Z commencing daily 30 nov thru 30 dec in area bound by 27-55-15N 144-57-48E,…
  21. HYDROPAC 1965/052005-11-22 → 2005-11-28
    Hazardous operations 2000Z to 0300Z commencing daily 25 thru 27 nov in area bound by 09-02N 167-34E, 08-54N…
  22. HYDROPAC 1943/052005-11-21 → 2005-11-28
    Hazardous operations 2000Z to 0300Z commencing daily 25 thru 27 nov in area bound by 09-02N 167-34E, 08-54N…
  23. HYDROPAC 1811/052005-10-27 → 2005-11-30
    Gunnery exercises 2300Z to 0900Z commencing daily 31 oct thru 29 nov in area bound by 27-55-15N 144-57-48E,…
  24. HYDROPAC 1769/052005-10-20 → 2005-10-24
    Hazardous operations 0100Z to 0500Z daily 21, 22 and 24 oct in area bound by 52-03.0N 159-44.0E, 52-24.0N…
  25. NAVAREA XII 303/052005-10-17 → 2005-10-19
    Hazardous operations 1600Z to 2000Z daily 19 thru 21 oct in area bound by a. 34-21N 120-38W, 34-22N 120-43W,…
  26. HYDROPAC 1703/052005-10-10 → 2005-10-15
    Hazardous operations 0001Z to 0300Z and 0500Z to 0800Z daily 13 thru 15 oct in area bound by 53-09.0N…
  27. HYDROPAC 1688/052005-10-08 → 2005-10-10
    Hazardous operations 0001Z to 0300Z and 0500Z to 0800Z daily 13 thru 15 oct in area bound by 53-09.0N…
  28. HYDROPAC 1676/052005-10-06 → 2005-10-08
    Hazardous operations 1900Z to 2300Z daily 06 thru 07 oct within 35 miles of 48-21N 166-22E
  29. NAVAREA XII 289/052005-10-03 → 2005-10-04
    Hazardous operations 2200Z to 0001Z commencing daily 04 thru 06 oct in areas bound by: a. 34-23N 120-28W,…
  30. NAVAREA XII 287/052005-10-02 → 2005-10-03
    Hazardous operations 2200Z to 0001Z commencing daily 04 thru 06 oct in areas bound by: a. 34-23N 120-28W,…
  31. NAVAREA XII 284/052005-09-30 → 2005-10-02
    Hazardous operations 2200Z to 0001Z commencing daily 03 thru 06 oct in areas bound by: a. 34-23N 120-28W,…
  32. NAVAREA XII 280/052005-09-28 → 2005-09-30
    Hazardous operations 2200Z to 0001Z commencing daily 02 thru 05 oct in areas bound by: a. 34-23N 120-28W,…
  33. HYDROPAC 1583/052005-09-26 → 2005-10-30
    Gunnery exercises 2300Z to 0900Z commencing daily 30 sep thru 30 oct in area bound by 27-55.2N 144-57.8E,…
  34. HYDROPAC 1580/052005-09-25 → 2005-09-30
    Hazardous operations 1900Z to 2300Z daily 26 thru 29 sep within 35 miles of 48-21N 166-22E
  35. HYDROPAC 1577/052005-09-25 → 2005-09-30
    Hazardous operations 2200Z to 0100Z commencing daily 28 and 29 sep, 0400Z to 0700Z daily 29 and 30 sep in…
  36. HYDROPAC 1553/052005-09-22 → 2005-09-29
    Hazardous operations 2000Z to 2200Z daily 26 sep thru 03 oct in area bound by 47-02N 157-13E, 47-31N…
  37. HYDROPAC 1501/052005-09-15 → 2005-09-23
    Hazardous operations 2200Z to 0100Z commencing daily 20 thru 22 sep and 0400Z to 0700Z daily 21 thru 23 sep…
  38. NAVAREA XII 260/052005-09-13 → 2005-09-17
    Hazardous operations 0801Z to 1401Z daily 14 thru 17 sep in areas bound by: a. 34-50N 121-04W, 34-51N…
  39. HYDROPAC 1493/052005-09-13 → 2005-09-13
    Hazardous operations 0801Z to 1401Z daily 14 thru 17 sep in areas bound by: a. 34-50N 121-04W, 34-51N…
  40. HYDROPAC 1492/052005-09-13 → 2005-09-15
    Hazardous operations 0701Z to 1501Z daily 14 and 15 sep in areas bound by: a. 08-48N 163-54E, 08-24N…
  41. HYDROPAC 1450/052005-09-06 → 2005-09-12
    Hazardous operations 2130Z to 2300Z daily 08 thru 11 sep within 216 miles of 31-55N 153-45E 2. cancel this…
  42. HYDROPAC 1391/052005-08-27 → 2005-09-30
    Gunnery exercises 2300Z to 0900Z commencing daily 31 aug thru 29 sep in area bound by 27-55-15N 144-57-48E,…
  43. NAVAREA XII 240/052005-08-26 → 2005-08-27
    Hazardous operations in progress until 271501Z aug in areas bound by: a. 34-51N 121-01W, 34-52N 121-01W,…
  44. HYDROPAC 1360/052005-08-22 → 2005-08-29
    Hazardous operations 2000Z to 2200Z daily 25, 26, 28 and 29 aug in area bound by 51-58.0N 160-21.4E,…
  45. HYDROPAC 1291/052005-08-10 → 2005-08-12
    Hazardous operations 2000Z to 2200Z daily 11 and 12 aug in area bound by 51-58.0N 160-21.4E, 52-30.3N…
  46. HYDROPAC 1285/052005-08-09 → 2005-08-14
    Hazardous operations 122300Z to 130030Z and 132300Z to 140030Z aug within 324 miles of 35-12N 150-39E
  47. NAVAREA XII 225/052005-08-08 → 2005-09-12
    Hazardous operations 2000Z to 1148Z commencing daily 10 aug thru 11 sep in area bound by 07-17N 092-19W,…
  48. HYDROLANT 1420/052005-08-05 → 2005-09-12
    Hazardous operations 2000Z to 1148Z commencing daily 10 aug thru 11 sep: a. within 12 miles of area between…
  49. NAVAREA IV 224/052005-08-05 → 2005-08-11
    Hazardous operations 2000Z to 1148Z commencing daily 10 aug thru 11 sep: a. within 12 miles of area between…
  50. HYDROPAC 1242/052005-08-03 → 2005-08-05
    Hazardous operations 040600Z to 041000Z and 050500Z to 050600Z 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 81 · seahazards