Military exercises in the North Pacific Ocean

Gunnery, firing and naval exercise areas.

in force
6
last 12 months
18
vs previous 12 (30)
-40%
since 1993
4,624

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 · 31 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 · 31 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 · 31 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 · 27 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 · 27 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 · 4,618 cancelled

  1. HYDROPAC 2924/202020-10-09 → 2020-10-09
    Hazardous operations 110200Z to 111300Z oct in areas within three miles of: a. 13-26N 145-08E
    Western North Pacific · Philippine Sea · Guam
  2. HYDROPAC 2913/202020-10-08 → 2020-10-09
    Hazardous operations 090200Z to 091300Z oct in areas within three miles of: a. 13-26N 145-08E
    Western North Pacific · Philippine Sea · Guam
  3. NAVAREA XII 451/202020-10-08 → 2020-10-17
    Hazardous operations 131500Z to 140100Z oct, alternate 141500Z to 150100Z, 151500Z to 160100Z and 161500Z to…
    Eastern North Pacific · California
  4. HYDROPAC 2896/202020-10-06 → 2020-10-07
    Hazardous operations 070200Z to 071300Z oct in areas within three miles of: a. 13-26N 145-08E
    Western North Pacific · Philippine Sea · Guam
  5. NAVAREA XII 443/202020-10-02 → 2020-10-06
    Hazardous operations 061400Z to 062200Z and 081400Z to 082200Z oct in area bound by 33-56N 119-14W, 33-46N…
    Eastern North Pacific · California
  6. HYDROPAC 2860/202020-10-02 → 2020-10-03
    Hazardous operations 030400Z to 031300Z oct in areas within three miles of: a. 13-26N 145-08E
    Western North Pacific · Philippine Sea · Guam
  7. HYDROPAC 2835/202020-09-30 → 2020-10-01
    Hazardous operations 010400Z to 011300Z oct in areas within three miles of: a. 13-26N 145-08E
    Western North Pacific · Philippine Sea · Guam
  8. HYDROPAC 2815/202020-09-28 → 2020-09-29
    Hazardous operations 290400Z to 291300Z sep in areas within three miles of: a. 13-26N 145-08E
    Western North Pacific · Philippine Sea · Guam
  9. HYDROPAC 2799/202020-09-25 → 2020-11-07
    Gunnery exercises 2300Z to 0900Z daily 30 sep thru 29 nov in area bound by 28-15-15N 146-29-47E, 25-25-16N…
    Western North Pacific
  10. HYDROPAC 2786/202020-09-25 → 2020-09-27
    Hazardous operations 270400Z to 271300Z sep in areas within three miles of: a. 13-26N 145-08E
    Western North Pacific · Philippine Sea · Guam
  11. HYDROPAC 2785/202020-09-25 → 2020-09-26
    Hazardous operations 260300Z to 261355Z sep in areas within three miles of: a. 13-26N 145-08E
    Western North Pacific · Philippine Sea · Guam
  12. HYDROPAC 2779/202020-09-24 → 2020-10-01
    Gunnery exercises 2200Z to 1000Z daily 28 thru 30 sep in area within 25 miles of 31-14.23N 144-26.80E
    Western North Pacific
  13. HYDROPAC 2776/202020-09-24 → 2020-09-25
    Hazardous operations 250300Z to 251355Z sep in areas within three miles of: a. 13-26N 145-08E
    Western North Pacific · Philippine Sea · Guam
  14. NAVAREA XII 430/202020-09-23 → 2020-09-30
    Hazardous operations 292000Z to 300001Z sep in area bound by 35-08N 122-24W, 34-36N 121-23W, 34-20N 121-17W,…
    Eastern North Pacific · California
  15. HYDROPAC 2768/202020-09-23 → 2020-09-24
    Hazardous operations 232215Z to 240800Z sep in areas within five miles of: a. 13-26N 145-08E
    Western North Pacific · Philippine Sea · Guam
  16. HYDROPAC 2759/202020-09-22 → 2020-09-23
    Hazardous operations 230400Z to 231300Z sep in areas within five miles of: a. 13-26N 145-08E
    Western North Pacific · Philippine Sea · Guam
  17. HYDROPAC 2744/202020-09-21 → 2020-09-22
    Hazardous operations 220400Z to 221300Z sep in areas within three miles of: a. 13-26N 145-08E
    Western North Pacific · Philippine Sea · Guam
  18. HYDROPAC 2718/202020-09-18 → 2020-09-19
    Hazardous operations 190300Z to 191355Z sep in areas within three miles of: a. 13-26N 145-08E
    Western North Pacific · Philippine Sea · Guam
  19. NAVAREA XII 417/202020-09-17 → 2020-09-21
    Hazardous operations 1700Z to 2300Z daily 22 and 24 sep in area within 14 miles of 34-26N 121-16W
    Eastern North Pacific · California
  20. NAVAREA XII 416/202020-09-17 → 2020-09-25
    Hazardous operations 1400Z to 2300Z daily 22 thru 24 sep, alternate 251400Z to 252300Z sep in area within 33…
    Eastern North Pacific · California
  21. HYDROPAC 2688/202020-09-16 → 2020-09-17
    Hazardous operations 170400Z to 171300Z sep in areas within three miles of: a. 13-26N 145-08E
    Western North Pacific · Philippine Sea · Guam
  22. HYDROPAC 2651/202020-09-12 → 2020-09-15
    Hazardous operations 0300Z to 1355Z daily 14 and 15 sep in areas within three miles of: a. 13-26N 145-08E
    Western North Pacific · Philippine Sea · Guam
  23. HYDROPAC 2642/202020-09-11 → 2020-09-13
    Hazardous operations 130300Z to 131300Z sep in areas within three miles of: a. 13-26N 145-08E
    Western North Pacific · Philippine Sea · Guam
  24. NAVAREA XII 409/202020-09-11 → 2020-09-15
    Gunnery exercises 142200Z to 150100Z sep in area within five miles of 56-54.5N 136-24.2W
    Eastern North Pacific · Alaska
  25. NAVAREA XII 408/202020-09-11 → 2020-09-30
    Hazardous operations 131400Z to 292359Z sep in 32-48-38N 118-24-51W
    Eastern North Pacific · California
  26. NAVAREA XII 407/202020-09-10 → 2020-09-16
    Hazardous operations 151630Z to 152030Z sep, alternate 161630Z to 162030Z sep in area bound by 33-34-39N…
    Eastern North Pacific · California
  27. HYDROPAC 2635/202020-09-10 → 2020-09-22
    Gunnery exercises 142300Z to 150900Z sep, alternate 152300Z to 160900Z sep and 2200Z to 1000Z daily 18 thru…
    Western North Pacific
  28. NAVAREA XII 405/202020-09-06 → 2020-09-12
    Hazardous operations 111330Z to 112300Z sep in area bound by 33-08-00N 118-51-54W, 33-03-54N 118-41-35W,…
    Eastern North Pacific · California
  29. HYDROPAC 2526/202020-08-29 → 2020-09-02
    Hazardous operations 020701Z to 021435Z sep, alternate 030725Z to 031459Z sep in areas bound by: a. 10-34N…
    North Pacific · Marshall Island
  30. NAVAREA XII 391/202020-08-28 → 2020-09-02
    Hazardous operations: a. 0632Z to 1359Z daily 02 thru 07 sep in area bound by 34-56N 121-16W, 34-56N…
    Eastern North Pacific · California
  31. HYDROPAC 2508/202020-08-28 → 2020-09-06
    Hazardous operations 0300Z to 1355Z daily 31 aug thru 06 sep in areas within three miles of: a. 13-26N 145-08E
    Philippine Sea · Western North Pacific · Guam
  32. NAVAREA XII 387/202020-08-25 → 2020-09-03
    Hazardous operations 311900Z to 312300Z aug, alternate 021900Z to 022300Z sep in area bound by 33-54N…
    Eastern North Pacific · California
  33. HYDROPAC 2481/202020-08-25 → 2020-08-26
    Hazardous operations 260001Z to 260600Z aug in area bound by 13-10N 144-30E, 13-10N 144-42E, 12-50N 144-45E,…
    Western North Pacific · Guam
  34. NAVAREA XII 385/202020-08-24 → 2020-08-31
    Hazardous operations 291500Z to 292359Z aug, alternate 301500Z to 302359Z aug in area bound by 33-19N…
    Eastern North Pacific · California
  35. NAVAREA XII 384/202020-08-24 → 2020-08-31
    Hazardous operations 291500Z to 292359Z aug, alternate 301500Z to 302359Z aug in area bound by 33-49N…
    Eastern North Pacific · California
  36. NAVAREA XII 374/202020-08-17 → 2020-08-22
    Hazardous operations 211700Z to 220500Z aug in area bound by 21-12N 156-27W, 21-12N 156-14W, 21-00N 156-14W,…
    Eastern North Pacific · Hawaii
  37. NAVAREA XII 370/202020-08-15 → 2020-08-17
    Hazardous operations 182300Z to 190130Z aug, alternate 192300Z to 200130Z aug in area bound by 33-11N…
    Eastern North Pacific · California
  38. HYDROPAC 2385/202020-08-13 → 2020-08-28
    Gunnery exercises 2100Z to 1000Z daily 17 thru 20 aug, alternate 2100Z to 1000Z daily 24 and 27 aug in area…
    Western North Pacific
  39. NAVAREA XII 367/202020-08-13 → 2020-09-01
    Hazardous operations 17 thru 31 aug in area bound by 22-00N 159-47W, 21-50N 160-20W, 21-50N 161-30W, 23-05N…
    North Pacific · Hawaii
  40. HYDROPAC 2351/202020-08-08 → 2020-08-13
    Hazardous operations 0300Z to 1355Z daily 10 thru 13 aug in areas within three miles of: a. 13-26N 145-08E
    Western North Pacific · Philippine Sea · Guam
  41. NAVAREA XII 362/202020-08-08 → 2020-08-14
    Hazardous operations 131400Z to 132200Z and 141400Z to 142200Z aug in area bound by 33-56N 119-14W, 33-46N…
    Eastern North Pacific · California
  42. NAVAREA XII 361/202020-08-07 → 2020-09-01
    Hazardous operations in progress until 010800Z sep in area bound by 32-52-40N 119-12-01W, 33-08-04N…
    Eastern North Pacific · California
  43. NAVAREA XII 358/202020-08-07 → 2020-08-14
    Hazardous operations 11 thru 13 aug in area bound by 14-40N 093-07W, 14-33N 092-57W, 14-38N 092-50W, 14-45N…
    Eastern North Pacific · Mexico
  44. NAVAREA XII 357/202020-08-07 → 2020-08-14
    Hazardous operations 11 thru 13 aug in area bound by 15-20N 097-15W, 15-10N 097-15W, 15-10N 097-02W, 15-20N…
    Eastern North Pacific · Mexico
  45. NAVAREA XII 356/202020-08-07 → 2020-08-14
    Hazardous operations 11 thru 13 aug in area bound by 17-00N 102-45W, 17-08N 102-45W, 17-08N 102-30W, 17-00N…
    Eastern North Pacific · Mexico
  46. NAVAREA XII 355/202020-08-07 → 2020-08-14
    Hazardous operations 11 thru 13 aug in area bound by 21-04N 106-09W, 21-14N 106-09W, 21-14N 106-23W, 21-04N…
    Eastern North Pacific · Mexico
  47. NAVAREA XII 353/202020-08-07 → 2020-08-14
    Hazardous operations 11 thru 13 aug in area bound by 24-28.1N 111-48.0W, 24-28.1N 111-46.0W, 24-27.0N…
    Eastern North Pacific · Mexico
  48. NAVAREA XII 352/202020-08-07 → 2020-08-14
    Hazardous operations 11 thru 13 aug in area bound by 31-10N 116-40W, 31-00N 116-40W, 31-00N 116-30W, 31-10N…
    Eastern North Pacific · Mexico
  49. NAVAREA XII 341/202020-08-01 → 2020-08-04
    Hazardous operations: a. 0631Z to 1345Z daily 04 thru 07 aug in area bound by 34-23N 124-24W, 34-36N…
    North Pacific · California
  50. NAVAREA XII 340/202020-08-01 → 2020-08-08
    Hazardous operations 041500Z to 042359Z, 051500Z to 052359Z, 061500Z to 062359Z aug, alternate 071500Z to…
    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.