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
- HYDROPAC 455/182018-02-02 → 2018-02-05Hazardous operations 070724Z to 071425Z feb, alternate 080714Z to 081415Z and 090737Z to 091438Z feb in…North Pacific
- HYDROPAC 454/182018-02-02 → 2018-02-05Hazardous operations 070645Z to 071508Z feb, alternate 0645Z to 1508Z daily 08 and 09 feb in area bound by…North Pacific
- NAVAREA XII 58/182018-02-02 → 2018-02-05Hazardous operations 070645Z to 071402Z feb, alternate 0645Z to 1402Z daily 08 and 09 feb in areas bound by:…Eastern North Pacific · California
- NAVAREA XII 57/182018-02-01 → 2018-02-12Hazardous operations: a. 050800Z to 120800Z feb in area bound by 33-08-04N 118-46-02W, 33-05-37N 118-43-34W,…Eastern North Pacific · California
- HYDROPAC 435/182018-01-31 → 2018-02-01Hazardous operations 010600Z to 010900Z feb in area bound by 13-10N 144-30E, 13-10N 144-42E, 12-50N 144-45E,…Western North Pacific · Guam
- HYDROPAC 372/182018-01-27 → 2018-02-28Gunnery exercises 2300Z to 0900Z commencing daily 31 jan thru 27 feb in area bound by 28-15-15N 146-29-47E,…Western North Pacific
- HYDROPAC 365/182018-01-26 → 2018-02-01Hazardous operations 300730Z to 301330Z jan, alternate 0730Z to 1330Z daily 31 jan thru 03 feb area bound by…North Pacific
- NAVAREA XII 48/182018-01-26 → 2018-02-05Hazardous operations: a. 290800Z jan to 050800Z feb in area bound by 33-08-04N 118-46-02W, 33-05-37N…Eastern North Pacific · California
- NAVAREA XII 47/182018-01-26 → 2018-01-31Hazardous operations 300730Z to 301330Z jan, alternate 0730Z to 1330Z daily 31 jan thru 03 feb in areas…North Pacific · Hawaii
- HYDROPAC 353/182018-01-26 → 2018-01-31Hazardous operations 300730Z to 301330Z jan, alternate 0730Z to 1330Z daily 31 jan thru 03 feb in areas…North Pacific · Hawaii
- NAVAREA XII 45/182018-01-25 → 2018-02-02Hazardous operations 301800Z to 302000Z, 302300Z to 310100Z, 312000Z to 312200Z jan, 010100Z to 010300Z,…Eastern North Pacific · Mexico
- HYDROPAC 338/182018-01-25 → 2018-02-05Gunnery exercises 2100Z to 0900Z commencing daily 29 and 30 jan, alternate 2100Z to 0900Z commencing daily…Western North Pacific
- HYDROPAC 334/182018-01-25 → 2018-01-26Hazardous operations 260200Z to 261000Z jan in area bound by 13-10N 144-30E, 13-10N 144-42E, 12-50N 144-45E,…Western North Pacific · Guam
- HYDROPAC 333/182018-01-25 → 2018-01-31Hazardous operations 300700Z to 301331Z jan, alternate 0700Z to 1331Z daily 31 jan and 01 thru 03 feb in…North Pacific
- NAVAREA XII 43/182018-01-25 → 2018-01-25Hazardous operations 251600Z to 252000Z jan in area bound by 36-52N 123-10W, 36-20N 124-19W, 35-13N 123-34W,…Eastern North Pacific · California
- NAVAREA XII 42/182018-01-24 → 2018-02-02Hazardous operations 301400Z to 310001Z and 311400Z jan to 010001Z feb, alternate 011400Z to 020001Z feb in…Eastern North Pacific · California
- NAVAREA XII 41/182018-01-24 → 2018-02-01Hazardous operations in progress until 010759Z feb in area bound by 32-33N 118-25W, 32-35N 118-16W, 32-35N…Eastern North Pacific · California · Mexico
- HYDROPAC 320/182018-01-24 → 2018-01-25Hazardous operations 250200Z to 251000Z jan in area bound by 13-10N 144-30E, 13-10N 144-42E, 12-50N 144-45E,…Western North Pacific · Guam
- HYDROPAC 306/182018-01-23 → 2018-01-24Hazardous operations 240200Z to 241000Z jan in area bound by 13-10N 144-30E, 13-10N 144-42E, 12-50N 144-45E,…Western North Pacific · Guam
- NAVAREA XII 30/182018-01-19 → 2018-01-28Hazardous operations 1300Z to 0300Z commencing daily 24 and 25 jan, alternate 1300Z to 0200Z commencing…Eastern North Pacific · California
- NAVAREA XII 23/182018-01-17 → 2018-01-29Hazardous operations: a. 220800Z to 290800Z jan in area bound by 33-08-04N 118-46-02W, 33-05-37N 118-43-34W,…Eastern North Pacific · California
- NAVAREA XII 22/182018-01-16 → 2018-01-25Hazardous operations in progress until 302000Z, 302300Z to 310100Z, 312000Z to 312200Z jan, 010100Z to…Eastern North Pacific · Mexico
- HYDROPAC 195/182018-01-15 → 2018-01-16Hazardous operations 160230Z to 161100Z jan in area bound by 13-10N 144-30E, 13-10N 144-42E, 12-50N 144-45E,…Western North Pacific · Guam
- NAVAREA XII 17/182018-01-12 → 2018-01-22Hazardous operations: a. 150800Z to 220800Z jan in area bound by 33-08-04N 118-46-02W, 33-05-37N 118-43-34W,…Eastern North Pacific · California
- NAVAREA XII 13/182018-01-11 → 2018-01-22Hazardous operations 11 thru 21 jan in area bound by 15-34.0N 093-55.0W, 15-26.5N 093-41.0W, 15-21.0N…Eastern North Pacific · Mexico
- HYDROPAC 118/182018-01-10 → 2018-01-11Hazardous operations 110030Z to 110530Z jan in area bound by 13-10N 144-30E, 13-10N 144-42E, 12-50N 144-45E,…Western North Pacific · Guam
- NAVAREA XII 4/182018-01-05 → 2018-01-12Hazardous operations 102030Z to 110126Z jan, alternate 2030Z to 0126Z commencing daily 11 and 12 jan in…Eastern North Pacific
- NAVAREA XII 2/182018-01-04 → 2018-01-15Hazardous operations 082000Z to 091000Z, 100001Z to 101000Z, 110001Z to 111100Z, 0001Z to 1000Z daily 12 and…Eastern North Pacific · California
- HYDROPAC 37/182018-01-04 → 2018-01-05Hazardous operations 042130Z to 050700Z jan in area bound by 13-10N 144-30E, 13-10N 144-42E, 12-50N 144-45E,…Western North Pacific · Guam
- HYDROPAC 22/182018-01-03 → 2018-01-04Hazardous operations 032230Z to 040800Z jan in area bound by 13-10N 144-30E, 13-10N 144-42E, 12-50N 144-45E,…Western North Pacific · Guam
- HYDROPAC 20/182018-01-02 → 2018-01-03Hazardous operations 022230Z to 030330Z jan in area bound by 13-10N 144-30E, 13-10N 144-42E, 12-50N 144-45E,…Western North Pacific · Guam
- HYDROPAC 4598/172017-12-27 → 2018-01-31Gunnery exercises 2300Z to 0900Z commencing daily 31 dec thru 30 jan 18 in area bound by 28-15-15N…Western North Pacific
- NAVAREA XII 581/172017-12-27 → 2018-01-24Hazardous operations 010701Z jan to 010659Z feb 18 in area bound by 32-33N 118-25W, 32-35N 118-16W, 32-35N…Eastern North Pacific · California · Mexico
- HYDROPAC 4432/172017-12-16 → 2017-12-23Gunnery exercises 2100Z to 0900Z commencing daily 20 and 21 dec, alternate 222100Z to 230900Z dec in area…Western North Pacific
- HYDROPAC 4379/172017-12-13 → 2017-12-14Hazardous operations 132230Z to 141230Z dec in area bound by 13-10N 144-30E, 13-10N 144-42E, 12-50N 144-45E,…Western North Pacific · Guam
- HYDROPAC 4341/172017-12-11 → 2017-12-12Hazardous operations 112230Z to 120800Z dec in area bound by 13-10N 144-30E, 13-10N 144-42E, 12-50N 144-45E,…Western North Pacific · Guam
- HYDROPAC 4325/172017-12-10 → 2017-12-11Hazardous operations 110200Z to 110900Z dec in area bound by 13-10N 144-30E, 13-10N 144-42E, 12-50N 144-45E,…Western North Pacific · Guam
- NAVAREA XII 560/172017-12-08 → 2017-12-19Hazardous operations 2100Z to 0126Z commencing daily 13 thru 18 dec in area bound by 26-25N 123-12W, 26-46N…Eastern North Pacific
- NAVAREA XII 558/172017-12-07 → 2017-12-18Hazardous operations: a. 110800Z to 180800Z dec in area bound by 33-08-04N 118-46-02W, 33-05-37N 118-43-34W,…Eastern North Pacific · California
- NAVAREA XII 551/172017-12-05 → 2017-12-10Hazardous operations 081300Z to 090200Z dec, alternate 091700Z to 100200Z dec in area bound by 33-18N…Eastern North Pacific · California
- NAVAREA XII 543/172017-11-30 → 2017-12-11Hazardous operations: a. 040800Z to 110800Z dec in area bound by 33-08-04N 118-46-02W, 33-05-37N 118-43-34W,…Eastern North Pacific · California
- NAVAREA XII 542/172017-11-30 → 2017-12-05Hazardous operations 021300Z to 030001Z dec, alternate 041300Z to 050001Z dec in area bound by 33-18N…Eastern North Pacific · California
- HYDROPAC 4122/172017-11-26 → 2017-12-31Gunnery exercises 2300Z to 0900Z commencing daily 30 nov thru 30 dec in area bound by 28-15-15N 146-29-47E,…Western North Pacific
- NAVAREA XII 537/172017-11-25 → 2017-11-28Hazardous operations 301300Z to 302100Z nov, alternate 1300Z to 2100Z daily 01 and 02 dec in area bound by…Eastern North Pacific · California
- NAVAREA XII 530/172017-11-23 → 2017-12-01Hazardous operations 281500Z to 290100Z nov, alternate 301500Z nov to 010100Z dec in area bound by 34-06-36N…Eastern North Pacific · California
- HYDROPAC 4053/172017-11-21 → 2017-11-22Hazardous operations 212230Z to 220230Z nov in area bound by 13-10N 144-30E, 13-10N 144-42E, 12-50N 144-45E,…Western North Pacific · Guam
- NAVAREA XII 513/172017-11-15 → 2017-11-27Hazardous operations 200800Z to 270800Z nov in area bound by 33-08-04N 118-46-02W, 33-05-37N 118-43-34W,…Eastern North Pacific · California
- NAVAREA XII 504/172017-11-13 → 2017-11-16Hazardous operations 161300Z to 162000Z nov, alternate 1300Z to 2000Z daily 17, 18, 20 and 21 nov in area…Eastern North Pacific · California
- NAVAREA XII 502/172017-11-11 → 2017-11-18Hazardous operations 16 and 17 nov in area bound by 15-34.0N 093-55.0W, 15-26.5N 093-41.0W, 15-21.0N…Eastern North Pacific · Mexico
- NAVAREA XII 501/172017-11-11 → 2017-11-13Hazardous operations 161300Z to 162000Z nov, alternate 1300Z to 2000Z daily 17, 18, 20 and 21 nov in area…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.