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 156/192019-05-06 → 2019-05-10Hazardous operations 082100Z to 090100Z may, alternate 091800Z to 100100Z may in area bound by 32-54-22N…Eastern North Pacific · California
- HYDROPAC 1529/192019-05-06 → 2019-05-07Hazardous operations 070100Z to 071355Z may in areas within three miles of: a. 13-26N 145-08EWestern North Pacific · Philippine Sea · Guam
- HYDROPAC 1509/192019-05-04 → 2019-05-09Hazardous operations 090738Z to 091439Z, alternate 100804Z to 101505Z may in area bound by 09-17N 167-22E,…North Pacific
- HYDROPAC 1501/192019-05-03 → 2019-05-10Gunnery exercises 082200Z to 090800Z may, alternate 092200Z to 100800Z may in area within 25 miles of…Western North Pacific
- HYDROPAC 1446/192019-04-30 → 2019-05-01Hazardous operations 010100Z to 011355Z may in area bound by 13-10N 144-30E, 13-10N 144-42E, 12-50N 144-45E,…Western North Pacific · Guam
- HYDROPAC 1436/192019-04-29 → 2019-04-30Hazardous operations 300100Z to 301355Z apr in area bound by 13-10N 144-30E, 13-10N 144-42E, 12-50N 144-45E,…Western North Pacific · Guam
- HYDROPAC 1418/192019-04-27 → 2019-05-01Hazardous operations, 010815Z to 011516Z may, alternate 020838Z to 021539Z may in area bound by 09-09N…North Pacific · Marshall Islands
- NAVAREA XII 144/192019-04-26 → 2019-05-04Hazardous operations 011730Z to 020730Z, 030230Z to 030430Z and 032200Z to 032359Z may in area bound by…Eastern North Pacific · California
- HYDROPAC 1413/192019-04-26 → 2019-05-31Gunnery exercises 2300Z to 0900Z commencing daily 30 apr thru 30 may in area bound by 28-15-15N 146-29-47E,…Western North Pacific
- HYDROPAC 1370/192019-04-23 → 2019-04-28Gunnery exercises 280400Z to 280700Z apr in area within ten miles of 29-55.0N 141-59.5EWestern North Pacific · Philippine Sea · Japan
- NAVAREA XII 139/192019-04-22 → 2019-04-28Hazardous operations 261300Z to 270100Z apr, alternate 271300Z to 280100Z apr in area bound by 33-46N…Eastern North Pacific · California
- NAVAREA XII 134/192019-04-18 → 2019-04-26Hazardous operations 231300Z to 240100Z apr, alternate 1300Z to 0100Z commencing daily 24 and 25 apr in area…Eastern North Pacific · California
- HYDROPAC 1305/192019-04-17 → 2019-04-18Hazardous operations 172200Z to 181000Z apr in area bound by 13-10N 144-30E, 13-10N 144-42E, 12-50N 144-45E,…Western North Pacific · Guam
- HYDROPAC 1288/192019-04-16 → 2019-04-17Hazardous operations 162200Z to 171000Z apr in area bound by 13-10N 144-30E, 13-10N 144-42E, 12-50N 144-45E,…Western North Pacific · Guam
- NAVAREA XII 131/192019-04-12 → 2019-04-18Hazardous operations 161800Z to 170100Z apr, alternate 171800Z to 180300Z apr in area bound by 32-54.36N…Eastern North Pacific · California
- NAVAREA XII 126/192019-04-12 → 2019-04-17Hazardous operations 171400Z to 180030Z apr, alternate 1814000Z to 190030Z, 1914000Z to 200030Z and 2014000Z…Eastern North Pacific · California
- HYDROPAC 1224/192019-04-11 → 2019-04-19Gunnery exercises 2100Z to 0900Z commencing daily 15 and 16 apr, alternate 2100Z to 0900Z commencing daily…Western North Pacific
- HYDROPAC 1133/192019-04-04 → 2019-04-04Hazardous operations 041401Z to 041500Z apr in areas within three miles of: a. 13-26N 145-08EWestern North Pacific · Philippine Sea · Guam
- NAVAREA XII 118/192019-04-02 → 2019-04-08Hazardous operations 011530Z to 020130Z apr in area bound by 32-55-00N 118-25-00W, 32-55-00N 118-15-00W,…Eastern North Pacific · California
- HYDROPAC 1110/192019-04-02 → 2019-04-03Hazardous operations 030100Z to 031359Z apr in area bound by 13-10N 144-30E, 13-10N 144-42E, 12-50N 144-45E,…Western North Pacific · Guam
- HYDROPAC 1087/192019-04-01 → 2019-04-02Hazardous operations 020100Z to 020600Z apr in area bound by 13-10N 144-30E, 13-10N 144-42E, 12-50N 144-45E,…Western North Pacific · Guam
- HYDROPAC 1056/192019-03-29 → 2019-04-07Gunnery exercises 2100Z to 0900Z commencing daily 02 and 03 apr, alternate 2100Z to 0900Z commencing daily…Western North Pacific
- HYDROPAC 1048/192019-03-29 → 2019-04-01Hazardous operations 312200Z mar to 010400Z apr in area bound by 13-10N 144-30E, 13-10N 144-42E, 12-50N…Western North Pacific · Guam
- HYDROPAC 1047/192019-03-29 → 2019-03-30Hazardous operations 300001Z to 300800Z mar in area bound by 13-10N 144-30E, 13-10N 144-42E, 12-50N 144-45E,…Western North Pacific · Guam
- NAVAREA XII 112/192019-03-28 → 2019-05-01Hazardous operations 010800Z apr to 010800Z may in area bound by 32-52-40N 119-12-01W, 33-08-04N 118-51-46W,…Eastern North Pacific · California
- HYDROPAC 1032/192019-03-28 → 2019-03-28Hazardous operations 281401Z to 281500Z mar in areas within three miles of: a. 13-26N 145-08EWestern North Pacific · Philippine Sea · Guam
- HYDROPAC 1024/192019-03-27 → 2019-04-30Gunnery exercises 2300Z to 0900Z commencing daily 31 mar thru 29 apr in area bound by 28-15-15N 146-29-47E,…Western North Pacific
- NAVAREA XII 111/192019-03-27 → 2019-05-01Hazardous operations 010800Z apr to 010800Z may in area bound by 32-33N 118-25W, 32-35N 118-16W, 32-35N…Eastern North Pacific · California · Mexico
- HYDROPAC 1012/192019-03-27 → 2019-03-30Hazardous operations 300900Z to 301500Z mar in areas within three miles of: a. 13-26N 145-08EWestern North Pacific · Philippine Sea · Guam
- NAVAREA XII 106/192019-03-19 → 2019-03-25Hazardous operations in progress thru 24 mar in area bound by 15-34.0N 093-55.0W, 15-26.5N 093-41.0W,…Eastern North Pacific · Mexico
- NAVAREA XII 104/192019-03-16 → 2019-03-20Hazardous operations 201600Z to 202100Z mar in area bound by 33-06N 120-35W, 31-59N 121-47W, 32-44N 123-27W,…Eastern North Pacific · California
- NAVAREA XII 99/192019-03-14 → 2019-03-16Hazardous operations 191600Z to 192100Z mar, alternate 201600Z to 202100Z mar in area bound by 33-06N…Eastern North Pacific · California
- HYDROPAC 830/192019-03-12 → 2019-03-15Hazardous operations 122200Z to 151200Z mar in areas: a. within three miles of 13-26N 145-08EWestern North Pacific · Guam
- HYDROPAC 829/192019-03-12 → 2019-03-21Hazardous operations 121401Z to 211355Z mar in area bound by 13-10N 144-30E, 13-10N 144-42E, 12-50N 144-45E,…Western North Pacific · Guam
- HYDROPAC 815/192019-03-11 → 2019-03-12Hazardous operations 120600Z to 121000Z mar in areas: a. within three miles of 13-26N 145-08EWestern North Pacific · Guam
- HYDROPAC 814/192019-03-11 → 2019-03-12Hazardous operations 112200Z to 121200Z mar in areas: a. within three miles of 13-26N 145-08EWestern North Pacific · Guam
- HYDROPAC 813/192019-03-11 → 2019-03-12Hazardous operations 111401Z to 121355Z mar in area bound by 13-10N 144-30E, 13-10N 144-42E, 12-50N 144-45E,…Western North Pacific · Guam
- HYDROPAC 761/192019-03-07 → 2019-03-10Hazardous operations 071401Z to 101355Z mar in area bound by 13-10N 144-30E, 13-10N 144-42E, 12-50N 144-45E,…Western North Pacific · Guam
- HYDROPAC 747/192019-03-06 → 2019-03-07Hazardous operations 070001Z to 071355Z mar in areas: a. within three miles of 13-26N 145-08EWestern North Pacific · Guam
- NAVAREA XII 91/192019-03-05 → 2019-03-09Hazardous operations 071500Z to 072300Z mar, alternate 081500Z to 082300Z and 091500Z to 092300Z mar in area…Eastern North Pacific · California
- NAVAREA XII 88/192019-02-28 → 2019-03-07Hazardous operations 051300Z to 060001Z mar alternate 061300Z to 070001Z mar in area within 39 miles of…Eastern North Pacific · California
- HYDROPAC 669/192019-02-27 → 2019-03-08Hazardous operations 2100Z to 0900Z commencing daily 03 and 04 mar, alternate 2100Z to 0900Z commencing…Western North Pacific
- HYDROPAC 668/192019-02-27 → 2019-03-05Hazardous operations 022200Z to 030830Z alternate 2200Z to 0830Z commencing daily 03 and 04 mar in area…Western North Pacific
- NAVAREA XII 87/192019-02-26 → 2019-04-01Hazardous 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
- HYDROPAC 621/192019-02-24 → 2019-03-31Gunnery exercises 2300Z to 0900Z commencing daily 28 feb thru 30 mar in area bound by 28-15-15N 146-29-47E,…Western North Pacific
- HYDROPAC 592/192019-02-21 → 2019-02-22Hazardous operations 220200Z to 220900Z feb in area bound by 13-10N 144-30E, 13-10N 144-42E, 12-50N 144-45E,…Western North Pacific · Guam
- HYDROPAC 513/192019-02-14 → 2019-02-15Hazardous operations 150130Z to 150845Z feb in areas within ten miles of: a. 15-46N 146-50EWestern North Pacific · Saipan
- HYDROPAC 483/192019-02-12 → 2019-02-13Hazardous operations 122200Z to 131000Z feb in area bound by 13-10N 144-30E, 13-10N 144-42E, 12-50N 144-45E,…Western North Pacific · Guam
- NAVAREA XII 72/192019-02-08 → 2019-02-13Hazardous operations 131800Z to 140100Z feb, alternate 141800Z to 150100Z feb and 151800Z to 160100Z feb in…Eastern North Pacific · California
- HYDROPAC 429/192019-02-06 → 2019-02-07Hazardous operations 070200Z to 071355Z feb 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.