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
A
S
O
N
D

Other hazards in the North Pacific Ocean

Archive · 4,615 cancelled

  1. NAVAREA XII 334/232023-06-08 → 2023-06-13
    California 1. hazardous operations 122000Z to 122300Z jun in area within 33 miles of 34-36.20N 122-06.90W
    Eastern North Pacific
  2. HYDROPAC 1900/232023-06-07 → 2023-06-15
    Hazardous operations 2300Z to 1355Z daily 12 thru 14 jun in areas within three miles of: a. 13-26.00N…
    Philippine Sea · Western North Pacific · Guam
  3. NAVAREA XII 331/232023-06-06 → 2023-06-10
    Gunnery exercises 101100Z to 101700Z jun in area bound by 30-30.00N 117-40.00W, 30-30.00N 118-45.00W,…
    Eastern North Pacific · Mexico
  4. NAVAREA XII 329/232023-06-05 → 2023-06-10
    Hazardous operations 081500Z to 082300Z jun, alternate 091500Z to 092300Z jun in area bound by 33-25.21N…
    Eastern North Pacific · California
  5. HYDROPAC 1881/232023-06-05 → 2023-06-08
    Hazardous operations 2300Z to 1355Z daily 05 thru 07 jun in areas within three miles of: a. 13-26.00N…
    Philippine Sea · Western North Pacific · Guam
  6. HYDROPAC 1877/232023-06-05 → 2023-06-05
    Hazardous operations 2300Z to 1355Z daily 06 thru 08 jun in areas within three miles of: a. 13-26.00N…
    Philippine Sea · Western North Pacific · Guam · Northern Mariana Islands
  7. HYDROPAC 1849/232023-06-02 → 2023-06-09
    Gunnery exercises 062300Z to 070800Z jun, alternate 2300Z to 0800Z daily 07 and 08 jun in area within 25…
    Western North Pacific
  8. NAVAREA XII 326/232023-06-02 → 2023-06-05
    Hazardous operations 071500Z to 072300Z jun, alternate 081500Z to 082300Z jun in area bound by 33-25.21N…
    Eastern North Pacific · California
  9. NAVAREA XII 322/232023-05-30 → 2023-06-02
    Hazardous operations 311500Z may to 010200Z jun, alternate 1500Z to 0200Z daily 01 thru 03 jun in area bound…
    Eastern North Pacific · California
  10. NAVAREA XII 320/232023-05-27 → 2023-07-01
    Hazardous operations 010800Z jun to 010800Z jul in area bound by 32-55.00N 118-25.00W, 32-55.00N 118-15.00W,…
    Eastern North Pacific · California
  11. NAVAREA XII 319/232023-05-27 → 2023-07-01
    Hazardous operations 010800Z jun to 010800Z jul in area bounded by 32-33.00N 118-25.00W, 32-35.00N…
    Eastern North Pacific · California
  12. NAVAREA XII 318/232023-05-27 → 2023-07-01
    Hazardous operations 010800Z jun to 010800Z jul in area bound by 32-52.70N 119-11.97W, 33-08.07N 118-52.08W,…
    Eastern North Pacific · California
  13. HYDROPAC 1762/232023-05-27 → 2023-06-30
    Gunnery exercises 2300Z to 0900Z daily 31 may thru 29 jun in area bound by 28-15.15N 146-29.47E, 25-25.16N…
    Western North Pacific
  14. NAVAREA XII 316/232023-05-24 → 2023-05-31
    Hazardous operations 251500Z to 251900Z and 301900Z to 302300Z may in area bound by 33-25.22N 120-32.35W,…
    Eastern North Pacific · California
  15. HYDROPAC 1714/232023-05-23 → 2023-05-28
    Hazardous operations 271400Z to 282200Z may in area bound by 13-10.00N 144-30.00E, 13-10.00N 144-42.00E,…
    Western North Pacific · Guam
  16. NAVAREA XII 308/232023-05-19 → 2023-05-24
    California 1. hazardous operations 241500Z to 241900Z may in area bound by 33-25.20N 120-32.35W, 33-24.90N…
    Eastern North Pacific
  17. NAVAREA XII 305/232023-05-18 → 2023-05-27
    Hazardous operations 21 thru 26 may in area bound by 14-45.00N 093-00.00W, 14-40.00N 093-07.00W, 14-33.00N…
    Eastern North Pacific · Mexico
  18. NAVAREA XII 304/232023-05-18 → 2023-05-27
    Hazardous operations 21 thru 26 may in area bound by 15-42.00N 095-33.00W, 15-37.00N 095-48.00W, 15-27.00N…
    Eastern North Pacific · Mexico
  19. NAVAREA XII 303/232023-05-18 → 2023-05-27
    Hazardous operations 21 thru 26 may in area bound by 16-20.70N 099-51.70W, 16-28.70N 100-11.00W, 16-15.90N…
    Eastern North Pacific · Mexico
  20. NAVAREA XII 302/232023-05-18 → 2023-05-27
    Hazardous operations 21 thru 26 may in area bound by 17-08.00N 102-30.00W, 17-08.00N 102-45.00W, 17-00.00N…
    Eastern North Pacific · Mexico
  21. NAVAREA XII 301/232023-05-18 → 2023-05-27
    Hazardous operations 21 thru 26 may in area bound by 18-25.00N 104-30.00W, 18-25.00N 104-50.00W, 18-15.00N…
    Eastern North Pacific · Mexico
  22. NAVAREA XII 300/232023-05-18 → 2023-05-27
    Hazardous operations 21 thru 26 may in area bound by 22-12.00N 107-00.00W, 22-12.00N 107-12.00W, 22-02.00N…
    Eastern North Pacific · Mexico
  23. NAVAREA XII 296/232023-05-18 → 2023-05-27
    Hazardous operations 21 thru 26 may in area bound by 31-10.00N 116-30.00W, 31-10.00N 116-40.00W, 31-00.00N…
    Eastern North Pacific · Mexico
  24. HYDROPAC 1635/232023-05-17 → 2023-05-24
    Hazardous operations 0930Z to 1130Z daily 23 and 24 may in area within three miles of 13-26.00N 145-08.00E
    Western North Pacific · Guam
  25. HYDROPAC 1630/232023-05-17 → 2023-05-18
    Hazardous operations 2300Z to 1355Z daily 16 and 17 may in areas within three miles of: a. 13-26.00N…
    Philippine Sea · Western North Pacific · Guam
  26. NAVAREA XII 292/232023-05-16 → 2023-05-22
    Hazardous operations 191900Z to 192300Z may, alternate 221900Z to 222300Z may in area bound by 33-25.22N…
    Eastern North Pacific · California
  27. NAVAREA XII 289/232023-05-15 → 2023-05-16
    Hazardous operations 192000Z to 192359Z may, alternate 212000Z to 212359Z may in area bound by 33-25.22N…
    Eastern North Pacific · California
  28. NAVAREA XII 288/232023-05-15 → 2023-05-15
    Hazardous operations 192000Z to 192359Z may, alternate 212000Z to 212359Z may in area bound by 33-25.22N…
    Eastern North Pacific · California
  29. NAVAREA XII 283/232023-05-13 → 2023-05-19
    Hazardous operations 1218Z to 1411Z daily 19 thru 24 may in areas bound by: a. 34-41.00N 120-41.00W,…
    Eastern North Pacific · California
  30. HYDROPAC 1576/232023-05-12 → 2023-05-15
    Hazardous operations 0500Z to 1200Z daily 14 and 15 may in area bound by 12-49.98N 145-00.00E, 12-49.98N…
    Western North Pacific · Guam
  31. HYDROPAC 1529/232023-05-08 → 2023-05-18
    Gunnery exercises 2300Z to 0900Z daily 14 thru 16 may, alternate 2300Z to 0900Z daily 12, 13 and 17 may in…
    Western North Pacific
  32. NAVAREA XII 272/232023-05-08 → 2023-05-13
    Hazardous operations 1500Z to 2000Z daily 13, 14 and 21 may in area bound by 35-36.00N 123-19.00W, 35-48.00N…
    Eastern North Pacific · California
  33. NAVAREA XII 268/232023-05-06 → 2023-05-11
    Hazardous operations 101954Z to 102100Z, 111941Z to 112047Z, 121926Z to 122033Z, 131912Z to 132019Z, 141858Z…
    Eastern North Pacific · Mexico
  34. HYDROPAC 1470/232023-05-03 → 2023-06-09
    Hazardous operations 1900Z to 0800Z daily 06 may thru 09 jun in area within 12 miles of 16-01.06N 146-03.52E
    Western North Pacific · Farallon de Medinilla
  35. HYDROPAC 1468/232023-05-03 → 2023-05-12
    Hazardous operations 2300Z to 1355Z daily 09 thru 11 may in areas within three miles of: a. 13-26.00N…
    Philippine Sea · Western North Pacific · Guam
  36. NAVAREA XII 256/232023-05-01 → 2023-05-06
    Hazardous operations 052000Z to 052300Z may in area within 33 miles of 33-12.73N 120-34.53W
    Eastern North Pacific · California
  37. HYDROPAC 1427/232023-04-30 → 2023-05-06
    Hazardous operations 052200Z to 060700Z may in area bound by 15-25.00N 148-04.00E, 15-25.00N 146-25.00E,…
    Western North Pacific · Northern Mariana Islands
  38. NAVAREA XII 250/232023-04-28 → 2023-05-03
    Hazardous operations 031500Z to 031900Z may, alternate 051500Z to 051900Z may in area bound by 33-29.25N…
    Eastern North Pacific · California
  39. NAVAREA XII 246/232023-04-27 → 2023-05-03
    Hazardous operations 021230Z to 022000Z may, alternate 041230Z to 042000Z may in area bound by 31-55.63N…
    Eastern North Pacific · California
  40. NAVAREA XII 245/232023-04-27 → 2023-05-03
    Hazardous operations 021230Z to 022000Z may, alternate 041230Z to 042000Z may in area bound by 30-52.95N…
    Eastern North Pacific
  41. NAVAREA XII 244/232023-04-27 → 2023-05-03
    Hazardous operations 021230Z to 022000Z may, alternate 041230Z to 042000Z may in area bound by 28-20.65N…
    Eastern North Pacific
  42. HYDROPAC 1381/232023-04-26 → 2023-05-31
    Hazardous operations 2300Z to 0900Z daily 30 apr thru 30 may, in area bound by 28-15.25N 146-29.78E,…
    Western North Pacific
  43. HYDROPAC 1379/232023-04-26 → 2023-05-14
    Hazardous operations 061900Z to 141000Z may in areas bound by: a. 12-49.98N 145-00.00E, 12-49.98N…
    Western North Pacific · Guam
  44. NAVAREA XII 241/232023-04-26 → 2023-06-01
    Hazardous operations 010800Z may to 010800Z jun in area bound by 32-33.00N 118-25.00W, 32-35.00N 118-16.00W,…
    Eastern North Pacific · California
  45. NAVAREA XII 240/232023-04-26 → 2023-06-01
    Hazardous operations 010800Z may to 010800Z jun in area bound by 32-52.70N 119-11.97W, 33-08.06N 118-52.09W,…
    Eastern North Pacific · California
  46. NAVAREA XII 239/232023-04-26 → 2023-06-01
    Hazardous operations 010800Z may to 010800Z jun in area bound by 32-55.00N 118-25.00W, 32-55.00N 118-15.00W,…
    Eastern North Pacific · California
  47. HYDROPAC 1378/232023-04-26 → 2023-05-08
    Hazardous operations 061800Z to 071100Z and 072200Z to 080600Z may in area bound by 13-10.00N 144-30.00E,…
    Western North Pacific · Guam
  48. HYDROPAC 1376/232023-04-26 → 2023-05-04
    Hazardous operations 012300Z to 041355Z may in area within three miles of 13-26.00N 145-08.00E
    Western North Pacific · Guam
  49. HYDROPAC 1368/232023-04-25 → 2023-04-26
    Hazardous operations 270130Z to 270330Z and 282200Z to 290001Z apr in area within ten miles of 22-41.99N…
    North Pacific
  50. NAVAREA XII 235/232023-04-23 → 2023-04-29
    Hazardous operations 23 thru 28 apr in area bound by 15-42.00N 095-33.00W, 15-37.00N 095-48.00W, 15-27.00N…
    Eastern North Pacific · Mexico

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 8 · seahazards