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 418/192019-02-05 → 2019-02-06Hazardous operations 060200Z to 061355Z feb in areas within three miles of: a. 13-26N 145-08EWestern North Pacific · Philippine Sea · Guam
- HYDROPAC 410/192019-02-04 → 2019-02-05Hazardous operations 050200Z to 051355Z feb in areas within three miles of: a. 13-26N 145-08EWestern North Pacific · Philippine Sea · Guam
- NAVAREA XII 66/192019-02-03 → 2019-02-09Hazardous operations 071800Z to 080100Z feb, alternate 081800Z to 090100Z feb in area bound by 33-18N…Eastern North Pacific · California
- HYDROPAC 376/192019-02-01 → 2019-02-06Hazardous operations 060700Z to 061401Z feb, alternate 070700Z to 071401Z feb in areas bound by: a. 12-05N…North Pacific
- NAVAREA XII 64/192019-02-01 → 2019-02-07Hazardous operations 061600Z to 070100Z feb in area bound by 33-52N 119-54W, 33-23N 119-31W, 32-54N 120-22W,…Eastern North Pacific · California
- NAVAREA XII 61/192019-02-01 → 2019-02-04Hazardous operations operations in progress until 041200Z feb in area bound by 15-34.0N 093-55.0W, 15-26.5N…Eastern North Pacific · Mexico
- HYDROPAC 352/192019-01-30 → 2019-02-08Gunnery exercises 032100Z to 040800Z feb, alternate 2100Z to 0800Z commencing daily 04 thru 07 feb in area…Western North Pacific
- HYDROPAC 349/192019-01-30 → 2019-01-31Hazardous operations 301401Z to 301500Z and 310200Z to 311355Z jan in area bound by 13-10N 144-30E, 13-10N…Western North Pacific · Guam
- NAVAREA XII 57/192019-01-29 → 2019-02-03Hazardous operations 011800Z to 020100Z feb, alternate 021800Z to 030100Z feb in area bound by 33-18N…Eastern North Pacific · California
- HYDROPAC 335/192019-01-29 → 2019-01-30Hazardous operations 300200Z to 301359Z jan in area bound by 13-10N 144-30E, 13-10N 144-42E, 12-50N 144-45E,…Western North Pacific · Guam
- NAVAREA XII 56/192019-01-29 → 2019-03-01Hazardous operations 010800Z feb to 010800Z mar in area bound by 32-52-40N 119-12-01W, 33-08-04N 118-51-46W,…Eastern North Pacific · California
- NAVAREA XII 55/192019-01-29 → 2019-03-01Hazardous operations 010800Z feb to 010800Z mar in area bound by 32-33N 118-25W, 32-35N 118-16W, 32-35N…Eastern North Pacific · California
- HYDROPAC 327/192019-01-28 → 2019-01-29Hazardous operations 290200Z to 291355Z jan in area bound by 13-10N 144-30E, 13-10N 144-42E, 12-50N 144-45E,…Western North Pacific · Guam
- HYDROPAC 313/192019-01-27 → 2019-02-28Gunnery exercises 2300Z to 0900Z commencing daily 31 jan thru 27 feb in area bound by 28-15-15N 146-29-47E,…Western North Pacific
- NAVAREA XII 50/192019-01-24 → 2019-01-29Hazardous operations 281400Z to 290030Z jan within 29 miles of 33-20N 120-12WEastern North Pacific · California
- NAVAREA XII 49/192019-01-24 → 2019-01-26Hazardous operations 251830Z to 260030Z jan in area bound by 33-52N 119-54W, 33-23N 119-31W, 32-54N 120-22W,…Eastern North Pacific · California
- NAVAREA XII 48/192019-01-24 → 2019-01-26Hazardous operations 251400Z to 260030Z jan in area bound by 33-20N 119-35W, 33-18N 119-28W, 32-58N 119-22W,…Eastern North Pacific · California
- HYDROPAC 235/192019-01-22 → 2019-01-23Hazardous operations 230100Z to 230500Z jan in areas within ten miles of: a. 15-46N 146-50EWestern North Pacific · Saipan
- NAVAREA XII 38/192019-01-18 → 2019-01-25Hazardous operations 241830Z to 250030Z jan in area bound by 33-52N 119-54W, 33-23N 119-31W, 32-54N 120-22W,…Eastern North Pacific · California
- NAVAREA XII 37/192019-01-18 → 2019-01-25Hazardous operations 241400Z to 250030Z jan in area bound by 33-20N 119-35W, 33-18N 119-28W, 32-58N 119-22W,…Eastern North Pacific · California
- NAVAREA XII 36/192019-01-18 → 2019-01-24Hazardous operations 221600Z to 230100Z and 231400Z to 232330Z jan in area within 29 miles of 33-25N 120-05WNorth Pacific Ocean · California
- NAVAREA XII 33/192019-01-17 → 2019-01-18Gunnery excercises 221600Z to 230100Z and 231400Z to 232330Z jan in area within 23 miles of 33-25N 120-05WNorth Pacific Ocean · California
- NAVAREA XII 22/192019-01-10 → 2019-01-16Hazardous operations 152100Z to 152359Z jan in area within 35 miles of 34-39N 121-37WEastern North Pacific · California
- HYDROPAC 78/192019-01-08 → 2019-01-09Hazardous operations 090100Z to 090500Z jan in area bound by 13-10N 144-30E, 13-10N 144-42E, 12-50N 144-45E,…Western North Pacific · Guam
- NAVAREA XII 7/192019-01-03 → 2019-02-01Hazardous operations 010800Z jan to 010800Z feb in area bound by 32-33N 118-25W, 32-35N 118-16W, 32-35N…Eastern North Pacific · California
- NAVAREA XII 6/192019-01-03 → 2019-02-01Hazardous operations 010800Z jan to 010800Z feb in area bound by 32-52-40N 119-12-01W, 33-08-04N 118-51-46W,…Eastern North Pacific · California
- HYDROPAC 4592/182018-12-27 → 2019-01-31Gunnery exercises 2300Z to 0900Z commencing daily 31 dec thru 30 jan 19 in area bound by 28-15-15N…Western North Pacific
- HYDROPAC 4590/182018-12-27 → 2018-12-28Hazardous operations 280001Z to 281100Z dec in area bound by 13-10N 144-30E, 13-10N 144-42E, 12-50N 144-45E,…Western North Pacific · Guam
- HYDROPAC 4518/182018-12-19 → 2018-12-20Hazardous operations 200815Z to 201100Z dec in areas within three miles of: a. 13-26N 145-08EWestern North Pacific · Philippine Sea · Guam
- HYDROPAC 4495/182018-12-17 → 2018-12-18Hazardous operations 180530Z to 180800Z dec in: a. 13-26N 145-08EWestern North Pacific · Guam
- HYDROPAC 4473/182018-12-15 → 2018-12-21Gunnery exercises 192300Z to 200800Z dec, alternate 2300Z to 0800Z commencing daily 20 and 21 dec within 25…Western North Pacific
- HYDROPAC 4454/182018-12-14 → 2018-12-15Hazardous operations 142300Z to 150400Z dec in area bound by 13-10N 144-30E, 13-10N 144-42E, 12-50N 144-45E,…Western North Pacific · Guam
- HYDROPAC 4436/182018-12-13 → 2018-12-14Hazardous operations 132300Z to 140400Z dec in 12-35N 144-30EWestern North Pacific · Guam
- NAVAREA XII 569/182018-12-12 → 2018-12-18Hazardous operations 171700Z to 172300Z dec in area within 23 miles of 33-25N 120-05WEastern North Pacific · California
- HYDROPAC 4410/182018-12-11 → 2018-12-13Hazardous operations 0001Z to 0500Z daily 12 and 13 dec in area bound by 13-10N 144-30E, 13-10N 144-42E,…Western North Pacific · Guam
- HYDROPAC 4401/182018-12-10 → 2018-12-11Hazardous operations 110930Z to 111230Z dec in areas within three miles of: a. 13-26N 145-08EWestern North Pacific · Philippine Sea · Guam
- HYDROPAC 4397/182018-12-10 → 2018-12-11Hazardous operations 110300Z to 110931Z dec, alternate 0300Z to 0931Z daily 12 thru 15 dec in areas bound…North Pacific
- NAVAREA XII 557/182018-12-08 → 2018-12-13Hazardous operations 11 thru 12 dec in areas bound by: a. 04-05.0N 077-35.0W, 03-50.0N 077-35.0W, 03-50.0N…Eastern North Pacific · Colombia
- NAVAREA XII 540/182018-12-04 → 2018-12-09Hazardous operations 061400Z to 070200Z dec alternate 071400Z to 080200Z dec and 081400Z to 090200Z dec in…Eastern North Pacific · California
- HYDROPAC 4317/182018-12-04 → 2018-12-06Hazardous operations 060500Z to 060900Z dec in area bound by 13-10N 144-30E, 13-10N 144-42E, 12-50N 144-45E,…Western North Pacific · Guam
- NAVAREA XII 532/182018-11-30 → 2018-12-05Hazardous operations 041700Z to 042200Z dec, alternate 051700Z to 052200Z dec in area bound by 33-06N…Eastern North Pacific · California
- NAVAREA XII 531/182018-11-30 → 2018-12-06Hazardous operations 042200Z to 051400Z dec, alternate 052200Z to 061400Z dec in area within two miles of…Eastern North Pacific · California
- NAVAREA XII 529/182018-11-28 → 2018-12-03Hazardous operations 301400Z nov to 010200Z dec, alternate 1400Z to 0200Z commencing daily 01 and 02 dec in…Eastern North Pacific · California
- NAVAREA XII 524/182018-11-27 → 2019-01-01Hazardous operations 010700Z dec to 010800Z jan 19 in area bound by 32-52-40N 119-12-01W, 33-08-04N…Eastern North Pacific · California
- NAVAREA XII 523/182018-11-27 → 2019-01-01Hazardous operations 010700Z dec to 010800Z jan 19 in area bound by 32-33N 118-25W, 32-35N 118-16W, 32-35N…Eastern North Pacific · California
- HYDROPAC 4231/182018-11-27 → 2018-11-30Hazardous operations 0001Z to 0500Z daily 28 thru 30 nov in area bound by 13-10N 144-30E, 13-10N 144-42E,…Western North Pacific · Guam
- HYDROPAC 4224/182018-11-26 → 2018-12-31Gunnery exercises 2300Z to 0900Z commencing daily 30 nov thru 30 dec in area bound by 28-15-15N 146-29-47E,…Western North Pacific
- HYDROPAC 4205/182018-11-23 → 2018-11-26Hazardous operations 261200Z to 261600Z nov in areas within three miles of: a. 13-26N 145-08EWestern North Pacific · Philippine Sea · Guam
- NAVAREA XII 510/182018-11-21 → 2018-11-27Hazardous operations 261800Z to 262300Z nov, alternate 271700Z to 272200Z nov: a. in area bound by 32-50N…Eastern North Pacific · California
- NAVAREA XII 502/182018-11-14 → 2018-11-16Hazardous operations 151300Z to 160100Z nov in area bound by 33-50N 121-05W, 33-11N 121-24W, 32-42N 119-59W,…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.