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
- NAVAREA XI 380/26in force2026-08-22Hazardous operations are taking place in the Marianas area from 27 August 0200Z to 0600Z, with cancellation at 0700Z.North Pacific, Marianas
- HYDROPAC 2152/26in force2026-07-27Gunnery 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
- NAVAREA XI 342/26in force2026-07-27Gunnery 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
- NAVAREA XII 512/26in force2026-07-23Hazardous operations are scheduled off the California coast in the North Pacific from August 1 to September 1.North Pacific · California
- NAVAREA XII 510/26in force2026-07-23Hazardous operations are underway off the coast of California from August 1 to September 1.North Pacific · California
- NAVAREA XII 511/26in force2026-07-23Hazardous operations are occurring from August 1 to September 1 in the North Pacific off California.North Pacific · California
Longest in force
- NAVAREA XII 511/26in force2026-07-23 · 31 dHazardous operations are occurring from August 1 to September 1 in the North Pacific off California.North Pacific · California
- NAVAREA XII 510/26in force2026-07-23 · 31 dHazardous operations are underway off the coast of California from August 1 to September 1.North Pacific · California
- NAVAREA XII 512/26in force2026-07-23 · 31 dHazardous operations are scheduled off the California coast in the North Pacific from August 1 to September 1.North Pacific · California
- NAVAREA XI 342/26in force2026-07-27 · 28 dGunnery 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
- HYDROPAC 2152/26in force2026-07-27 · 28 dGunnery 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 month (all years)
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Other hazards in the North Pacific Ocean
Archive · 4,618 cancelled
- NAVAREA XII 124/202020-03-19 → 2020-03-27Hazardous operations 24 thru 26 mar in area bound by 24-28.1N 111-48.0W, 24-28.1N 111-46.0W, 24-27.0N…Eastern North Pacific · Mexico
- NAVAREA XII 121/202020-03-19 → 2020-03-27Hazardous operations 24 thru 26 mar in area bound by 18-25N 104-50W, 18-15N 104-50W, 18-15N 104-30W, 18-25N…Eastern North Pacific · Mexico
- NAVAREA XII 120/202020-03-19 → 2020-03-27Hazardous operations 24 thru 26 mar in area bound by 16-28.1N 100-11.0W, 16-20.1N 099-51.1W, 16-06.1N…Eastern North Pacific · Mexico
- NAVAREA XII 119/202020-03-19 → 2020-03-27Hazardous operations 24 thru 26 mar in area bound by 15-34N 093-55W, 15-26N 093-41W, 15-21N 093-44W, 15-28N…Eastern North Pacific · Mexico
- HYDROPAC 907/202020-03-18 → 2020-03-19Hazardous operations 190830Z to 191355Z mar in areas within three miles of: a. 13-26N 145-08EWestern North Pacific · Philippine Sea · Guam
- HYDROPAC 905/202020-03-18 → 2020-03-19Hazardous operations 182200Z to 190500Z mar in area bound by 13-10N 144-30E, 13-10N 144-42E, 12-50N 144-45E,…Western North Pacific · Guam
- HYDROPAC 889/202020-03-17 → 2020-03-18Hazardous operations 172200Z to 180600Z mar in area bound by 13-10N 144-30E, 13-10N 144-42E, 12-50N 144-45E,…Western North Pacific · Guam
- HYDROPAC 869/202020-03-16 → 2020-03-17Hazardous operations 170900Z to 171355Z mar in areas within three miles of: a. 13-26N 145-08EWestern North Pacific · Philippine Sea · Guam
- HYDROPAC 867/202020-03-16 → 2020-03-17Hazardous operations 162200Z to 170300Z mar in area bound by 13-10N 144-30E, 13-10N 144-42E, 12-50N 144-45E,…Western North Pacific · Guam
- NAVAREA XII 112/202020-03-14 → 2020-03-18Hazardous operations 181500Z to 182030Z mar in area within 14 miles of 34-15.44N 121-51.53WEastern North Pacific · California
- NAVAREA XII 111/202020-03-13 → 2020-03-17Hazardous operations 171800Z to 172200Z mar in area within 15 miles of 33-11-32N 120-21-28WEastern North Pacific · California
- HYDROPAC 814/202020-03-11 → 2020-03-12Hazardous operations 112200Z to 120200Z mar: a. in area bound by 13-10N 144-30E, 13-10N 144-42E, 12-50N…Western North Pacific · Philippine Sea · Guam
- HYDROPAC 802/202020-03-10 → 2020-03-11Hazardous operations 102200Z to 110200Z mar: a. in area bound by 13-10N 144-30E, 13-10N 144-42E, 12-50N…Western North Pacific · Guam
- NAVAREA XII 93/202020-03-09 → 2020-03-14Hazardous operations 121700Z to 140001Z mar in area bound by 33-56N 119-43W, 33-35N 119-07W, 33-18N 119-36W,…Eastern North Pacific · California
- HYDROPAC 783/202020-03-09 → 2020-03-10Hazardous operations 092100Z to 101359Z mar: a. in area bound by 13-10N 144-30E, 13-10N 144-42E, 12-50N…Western North Pacific · Guam
- NAVAREA XII 87/202020-03-06 → 2020-03-11Hazardous operations 111700Z to 112100Z mar in area bound by 33-56N 119-14W, 33-46N 119-08W, 33-24N 120-06W,…Eastern North Pacific · California
- HYDROPAC 738/202020-03-04 → 2020-03-05Hazardous operations 042100Z to 050600Z mar in area bound by 13-10N 144-30E, 13-10N 144-42E, 12-50N 144-45E,…Western North Pacific · Guam
- HYDROPAC 737/202020-03-04 → 2020-03-04Hazardous operations 042100Z to 050400Z mar in area bound by 13-10N 144-30E, 13-10N 144-42E, 12-50N 144-45E,…Western North Pacific · Guam
- NAVAREA XII 85/202020-03-03 → 2020-03-06Hazardous operations 051930Z to 052330Z mar in area within ten miles of 34-20-18N 121-18-48WEastern North Pacific · California
- HYDROPAC 730/202020-03-03 → 2020-03-04Hazardous operations 040600Z to 041130Z mar in areas within three miles of: a. 13-26N 145-08EWestern North Pacific · Philippine Sea · Guam
- HYDROPAC 718/202020-03-02 → 2020-03-03Hazardous operations 031130Z to 031355Z mar in areas within three miles of: a. 13-26N 145-08EWestern North Pacific · Philippine Sea · Guam
- NAVAREA XII 80/202020-02-27 → 2020-03-03Hazardous operations 032030Z to 040030Z mar in area within 12 miles of 33-10N 120-19WEastern North Pacific · California
- NAVAREA XII 79/202020-02-26 → 2020-02-29Hazardous operations 281930Z to 282330Z feb in area within 12 miles of 33-10N 120-19WEastern North Pacific · California
- HYDROPAC 666/202020-02-25 → 2020-03-31Gunnery exercises 2300Z to 0900Z commencing daily 29 feb thru 30 mar in area bound by 28-15-15N 146-29-47E,…Western North Pacific
- NAVAREA XII 77/202020-02-25 → 2020-04-01Hazardous operations 010800Z mar to 010800Z apr in area bound by 32-33N 118-25W, 32-35N 118-16W, 32-35N…Eastern North Pacific · California
- NAVAREA XII 76/202020-02-25 → 2020-04-01Hazardous operations 010800Z mar to 010800Z apr in area bound by 32-55N 118-25W, 32-55N 118-15W, 32-40N…Eastern North Pacific · California
- NAVAREA XII 75/202020-02-25 → 2020-04-01Hazardous operations 010800Z mar to 010800Z apr in area bound by 32-52.40N 119-12.01W, 33-08.04N 118-51.46W,…Eastern North Pacific · California
- NAVAREA XII 74/202020-02-25 → 2020-02-26Hazardous operations 281930Z to 282330Z feb in area within 12 miles of 34-18N 121-17WEastern North Pacific · California
- NAVAREA XII 73/202020-02-25 → 2020-02-26Hazardous operations 271930Z to 272330Z feb in area within eight miles of 34-20-18N 121-18-48WEastern North Pacific · California
- NAVAREA XII 70/202020-02-21 → 2020-02-27Hazardous operations 0600Z to 1000Z daily 26 and 27 feb in area bound by 33-56N 119-14W, 33-46N 119-08W,…Eastern North Pacific · California
- NAVAREA XII 69/202020-02-20 → 2020-02-26Hazardous operations 251930Z to 252330Z feb in area within eight miles of 34-20-18N 121-18-48WEastern North Pacific · California
- NAVAREA XII 64/202020-02-18 → 2020-02-21Hazardous operations 210500Z to 210800Z feb in area within 13 miles of 33-10N 120-19WEastern North Pacific · California
- NAVAREA XII 63/202020-02-18 → 2020-02-20Hazardous operations 191930Z to 192330Z feb in area within 10 miles of 33-10.00N 120-19.42WEastern North Pacific · California
- NAVAREA XII 62/202020-02-18 → 2020-02-18Hazardous operations 191930Z to 192330Z feb in area within 10 miles of 33-13.6N 120-26.3WEastern North Pacific · California
- NAVAREA XII 61/202020-02-18 → 2020-02-18Hazardous operations 191930Z to 192330Z feb in area within 10 miles of 33-20N 120-36WEastern North Pacific · California
- HYDROPAC 485/202020-02-11 → 2020-03-10Hazardous operations in progress until 100900Z mar in area within one mile of 07-26-48N 151-50-23EWestern North Pacific · Micronesia
- NAVAREA XII 50/202020-02-06 → 2020-02-07Hazardous operations 062100Z to 070001Z feb in area within 40 miles of 34-35N 121-53WEastern North Pacific · California
- HYDROPAC 396/202020-02-06 → 2020-02-16Hazardous operations 101500Z to 162300Z feb in area bound by 16-36N 163-45E, 18-15N 167-15E, 17-15N 167-48E,…Eastern North Pacific · Wake Island
- NAVAREA XII 49/202020-02-06 → 2020-02-16Hazardous operations 101500Z to 162300Z feb in areas bound by: a. 32-24N 119-54W, 32-30N 117-33W, 32-00N…Eastern North Pacific · California
- NAVAREA XII 45/202020-02-04 → 2020-02-07Hazardous operations 062015Z to 070015Z feb in area bound by 32-55N 120-03W, 33-04N 119-52W, 32-52N 119-35W,…Eastern North Pacific · California
- HYDROPAC 377/202020-02-04 → 2020-02-05Hazardous operations 051100Z to 051355Z feb in areas within three miles of: a. 13-26N 145-08EPhilippine Sea · Western North Pacific · Guam
- NAVAREA XII 40/202020-01-31 → 2020-02-06Hazardous operations: a. 052100Z to 060001Z feb in area within 40 miles of 33-17N 120-37WEastern North Pacific · California
- HYDROPAC 342/202020-01-31 → 2020-02-05Hazardous operations 050807Z to 051508Z feb, alternate 060832Z to 061533Z feb in areas bound by: a. 09-16N…North Pacific · Marshall Islands
- HYDROPAC 340/202020-01-31 → 2020-02-04Hazardous operations 040830Z to 041030Z feb in areas within three miles of: a. 13-26N 145-08EPhilippine Sea · Western North Pacific · Guam
- NAVAREA XII 38/202020-01-28 → 2020-02-01Hazardous operations 311930Z to 312330Z jan in area within 15 miles of 34-22N 121-30WEastern North Pacific · California
- NAVAREA XII 35/202020-01-27 → 2020-01-28Hazardous operations 291930Z to 292330Z jan in area within 15 miles of 34-22N 121-30WEastern North Pacific · California
- NAVAREA XII 33/202020-01-27 → 2020-02-01Hazardous operations 291500Z to 292300Z jan, alternate 301500Z to 302300Z and 311500Z to 312300Z jan in area…Eastern North Pacific · California
- HYDROPAC 305/202020-01-27 → 2020-02-29Gunnery exercises 2300Z to 0900Z commencing daily 31 jan thru 28 feb in area bound by 28-15-15N 146-29-47E,…Western North Pacific
- NAVAREA XII 29/202020-01-24 → 2020-01-31Hazardous operations 291500Z to 292300Z jan, alternate 301500Z to 302300Z and 311500Z to 312300Z jan in area…Eastern North Pacific · California
- HYDROPAC 225/202020-01-21 → 2020-01-22Hazardous operations 221000Z to 221355Z jan in areas within three miles of: a. 13-26N 145-08EWestern North Pacific · Philippine Sea · Guam
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.