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 · 27 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 · 27 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 32/212021-01-26 → 2021-01-29Hazardous operations 281800Z to 290100Z jan in area bound by 33-54N 122-43W, 31-57N 121-36W, 31-24N 124-25W,…Eastern North Pacific · California
- NAVAREA XII 31/212021-01-26 → 2021-02-12Hazardous operations 280100Z jan to 120100Z feb in: a. 32-47-48N 118-22-43WEastern North Pacific · California
- HYDROPAC 325/212021-01-25 → 2021-01-28Hazardous operations 252200Z to 261100Z and 0200Z to 1100Z daily 27 and 28 jan in area bound by 13-10N…Western North Pacific · Guam
- HYDROPAC 324/212021-01-25 → 2021-01-26Hazardous operations 252200Z to 260200Z jan in area bound by 13-10N 144-30E, 13-10N 144-42E, 12-50N 144-45E,…Western North Pacific · Guam
- NAVAREA XII 26/212021-01-22 → 2021-01-26Hazardous operations 251800Z to 260001Z jan in area bound by 33-54N 122-43W, 31-57N 121-36W, 31-24N 124-25W,…Eastern North Pacific
- NAVAREA XII 25/212021-01-22 → 2021-01-22Hazardous operations 251800Z to 260001Z jan in area bound by 33-54N 122-43W, 31-57N 121-36W, 31-24N 124-25W,…Eastern North Pacific
- HYDROPAC 294/212021-01-22 → 2021-01-25Hazardous operations 0700Z to 1355Z daily 24 and 25 jan in areas within five miles of: a. 13-34N 145-40EWestern North Pacific · Philippine Sea · Guam
- NAVAREA XII 23/212021-01-21 → 2021-01-30Hazardous operations 261500Z to 262359Z jan, alternate 1500Z to 2359Z daily 27 thru 29 jan in area within 33…Eastern North Pacific · California
- NAVAREA XII 20/212021-01-20 → 2021-01-21Hazardous operations 202100Z to 202330Z jan in area bound by 34-00-53N 119-19-46W, 33-35-11N 119-05-12W,…Eastern North Pacific · California
- NAVAREA XII 13/212021-01-15 → 2021-01-21Hazardous operations 202100Z to 210100Z jan in area within 56 miles of 33-07N 120-46WEastern North Pacific · California
- NAVAREA XII 12/212021-01-15 → 2021-01-20Hazardous operations 191500Z to 192100Z jan, alternate 201500Z to 202100Z jan in area bound by 34-00-53N…Eastern North Pacific · California
- NAVAREA XII 11/212021-01-14 → 2021-01-15Hazardous operations 191500Z to 192100Z jan, alternate 201500Z to 202100Z jan in area bound by 33-59-27N…Eastern North Pacific · California
- NAVAREA XII 10/212021-01-14 → 2021-01-21Hazardous operations 191400Z to 192359Z and 201400Z to 202359Z jan in area bound by 33-01-58N 118-37-59W,…Eastern North Pacific · California
- HYDROPAC 125/212021-01-11 → 2021-01-27Hazardous operations 112200Z to 271359Z jan in: a. area bound by 13-10N 144-30E, 13-10N 144-42E, 12-50N…Western North Pacific · Philippine Sea · Guam
- HYDROPAC 103/212021-01-10 → 2021-01-15Hazardous operations 2300Z to 1355Z daily 10 thru 14 jan in areas within three miles of: a. 13-26N 145-08EWestern North Pacific · Philippine Sea · Guam
- NAVAREA XII 7/212021-01-08 → 2021-01-13Hazardous operations 121800Z to 130001Z jan in area bound by 33-54N 122-43W, 31-57N 121-36W, 31-24N 124-25W,…Eastern North Pacific
- NAVAREA XII 4/212021-01-06 → 2021-01-14Hazardous operations 111500Z to 112200Z, alternate 141500Z to 142200Z jan in area bound by 33-59N 119-20W,…Eastern North Pacific · California
- NAVAREA XII 3/212021-01-06 → 2021-01-08Hazardous operations 071630Z to 072359Z, alternate 081630Z to 082200Z jan in area within 55 miles of 33-02N…Eastern North Pacific · California
- NAVAREA XII 2/212021-01-06 → 2021-01-08Hazardous operations 071630Z to 072359Z, alternate 081630Z to 082200Z jan in area bound by 33-50N 119-48W,…Eastern North Pacific · California
- HYDROPAC 61/212021-01-06 → 2021-01-07Hazardous operations 062300Z to 070600Z jan in area bound by 13-10N 144-30E, 13-10N 144-42E, 12-50N 144-45E,…Western North Pacific · Guam
- HYDROPAC 55/212021-01-05 → 2021-01-13Gunnery exercises 2100Z to 0900Z daily 09 and 10 jan, alternate 2100Z to 0900Z daily 11 and 12 jan in area…Western North Pacific
- HYDROPAC 53/212021-01-05 → 2021-01-05Gunnery exercises 2100Z to 0900Z daily 09 and 10 jan, alternate 2100Z to 0900Z daily 11 and 12 jan in area…Western North Pacific
- NAVAREA XII 585/202020-12-28 → 2021-02-01Hazardous operations 010800Z jan to 010800Z feb in area bound by 32-52-42N 119-11-58W, 33-08-04N 118-52-05W,…Eastern North Pacific · California
- NAVAREA XII 584/202020-12-28 → 2021-02-01Hazardous operations 010800Z jan to 010800Z feb in area bound by 32-55N 118-25W, 32-55N 118-15W, 32-40N…Eastern North Pacific · California
- NAVAREA XII 583/202020-12-28 → 2021-02-01Hazardous operations 010800Z jan to 010800Z feb in area bound by 32-33N 118-25W, 32-35N 118-16W, 32-35N…Eastern North Pacific · California
- HYDROPAC 3850/202020-12-27 → 2020-12-29Hazardous operations 2300Z to 1355Z daily 27 and 28 dec in areas within three miles of: a. 13-26N 145-08EPhilippine Sea · Western North Pacific · Guam
- HYDROPAC 3685/202020-12-14 → 2020-12-17Hazardous operations 150100Z to 171330Z dec in areas within three miles of: a. 13-26N 145-08EPhilippine Sea · Western North Pacific · Guam
- HYDROPAC 3678/202020-12-13 → 2020-12-14Hazardous operations 140100Z to 141330Z dec in areas within three miles of: a. 13-26N 145-08EWestern North Pacific · Philippine Sea · Guam
- NAVAREA XII 565/202020-12-12 → 2020-12-19Hazardous operations 1800Z to 2359Z daily 17 and 18 dec in area bound by 32-35N 117-45W, 32-35N 117-55W,…Eastern North Pacific · California
- NAVAREA XII 563/202020-12-11 → 2020-12-17Hazardous operations 120001Z to 240200Z dec in area bound by 30-50N 118-00W, 30-50N 117-40W, 30-35N 117-40W,…Eastern North Pacific · California
- NAVAREA XII 560/202020-12-11 → 2020-12-19Hazardous operations 151500Z to 152359Z dec, alternate 1500Z to 2359Z daily 16 thru 18 dec in area bound by…Eastern North Pacific · California
- NAVAREA XII 559/202020-12-11 → 2020-12-19Hazardous operations 151500Z to 152359Z dec, alternate 1500Z to 2359Z daily 16 thru 18 dec in area bound by…Eastern North Pacific · California
- HYDROPAC 3629/202020-12-08 → 2020-12-18Gunnery exercises 2100Z to 0900Z daily 12 thru 14 dec, alternate 2100Z to 0900Z daily 15 thru 17 dec in area…Western North Pacific
- NAVAREA XII 551/202020-12-03 → 2020-12-12Hazardous operations 1630Z to 2300Z daily 09 and 11 dec, alternate 1630Z to 2300Z daily 08 and 10 dec in…Eastern North Pacific · California
- NAVAREA XII 550/202020-12-03 → 2020-12-10Hazardous operations 081500Z to 082100Z dec, alternate 101500Z to 102100Z dec in area bound by 32-18N…Eastern North Pacific · California
- NAVAREA XII 549/202020-12-03 → 2020-12-10Hazardous operations 081500Z to 082100Z dec, alternate 101500Z to 102100Z dec in area bound by 29-22N…Eastern North Pacific
- NAVAREA XII 548/202020-12-03 → 2020-12-10Hazardous operations 081500Z to 082100Z dec, alternate 101500Z to 102100Z dec in area bound by 26-28N…Eastern North Pacific
- NAVAREA XII 546/202020-12-01 → 2021-01-01Hazardous operations in progress until 010800Z jan 21 in area bound by 32-52-42N 119-11-58W, 33-08-04N…Eastern North Pacific · California
- NAVAREA XII 545/202020-12-01 → 2021-01-01Hazardous operations in progress until 010800Z jan 21 in area bound by 32-55N 118-25W, 32-55N 118-15W,…Eastern North Pacific · California
- NAVAREA XII 544/202020-12-01 → 2021-01-01Hazardous operations in progress until 010800Z jan 21 in area bound by 32-33N 118-25W, 32-35N 118-16W,…Eastern North Pacific · California
- HYDROPAC 3534/202020-11-30 → 2020-12-02Hazardous operations 0200Z to 1355Z daily 01 and 02 dec in areas within three miles of: a. 13-26N 145-08EPhilippine Sea · Western North Pacific · Guam
- NAVAREA XII 540/202020-11-28 → 2020-11-30Hazardous operations 301200Z to 301800Z nov in area bound by 01-54-03N 078-55-52W, 01-56-48N 078-55-48W,…Eastern North Pacific · Colombia
- NAVAREA XII 539/202020-11-27 → 2020-11-28Hazardous operations 301200Z to 301800Z nov in area bound by 01-54-03N 078-55-52W, 01-56-48N 078-55-48W,…Eastern North Pacific · Colombia
- HYDROPAC 3490/202020-11-26 → 2020-11-27Hazardous operations 270200Z to 270600Z nov in areas within three miles of: a. 13-26N 145-08EWestern North Pacific · Philippine Sea · Guam
- HYDROPAC 3489/202020-11-26 → 2021-01-31Gunnery exercises 2300Z to 0900Z daily 30 nov thru 30 jan 21 in area bound by 28-15-15N 146-29-47E,…Western North Pacific
- HYDROPAC 3442/202020-11-22 → 2020-11-24Hazardous operations 230200Z to 231355Z and 240200Z to 241355Z nov in areas within three miles of: a. 13-26N…Western North Pacific · Philippine Sea · Guam
- NAVAREA XII 527/202020-11-20 → 2020-11-27Hazardous operations 1300Z to 2300Z daily 24 thru 27 nov in area bound by 15-34.0N 093-55.0W, 15-26.0N…Eastern North Pacific · Mexico
- NAVAREA XII 526/202020-11-20 → 2020-11-27Hazardous operations 1300Z to 2300Z daily 24 thru 27 nov in area bound by 16-28.7N 100-11.0W, 16-20.7N…Eastern North Pacific · Mexico
- NAVAREA XII 525/202020-11-20 → 2020-11-27Hazardous operations 1300Z to 2300Z daily 24 thru 27 nov in area bound by 18-25N 104-50W, 18-15N 104-50W,…Eastern North Pacific · Mexico
- NAVAREA XII 520/202020-11-19 → 2020-11-27Hazardous operations 1300Z to 2300Z daily 24 thru 27 nov in area bound by 24-28.7N 111-48.0W, 24-28.7N…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.