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 519/202020-11-19 → 2020-11-27Hazardous operations 1300Z to 2300Z daily 24 thru 27 nov in area bound by 31-10N 116-40W, 31-00N 116-40W,…Eastern North Pacific · Mexico
- NAVAREA XII 517/202020-11-17 → 2020-11-25Hazardous operations 221600Z to 222300Z nov, alternate 1600Z to 2300Z daily 23 thru 25 nov in area bound by…Eastern North Pacific · California
- HYDROPAC 3361/202020-11-15 → 2020-11-19Hazardous operations 0400Z to 1100Z daily 16 thru 19 nov in area bound by 13-10N 144-30E, 13-10N 144-42E,…Western North Pacific · Guam
- HYDROPAC 3360/202020-11-15 → 2020-11-20Hazardous operations 170200Z to 171355Z and 2300Z to 1355Z daily 17 thru 19 nov in areas within three miles…Western North Pacific · Philippine Sea · Guam
- NAVAREA XII 511/202020-11-13 → 2020-11-20Hazardous operations 181700Z to 190100Z nov, alternate 191700Z to 200100Z nov in area bound by 33-06N…Eastern North Pacific · California
- NAVAREA XII 510/202020-11-12 → 2020-11-19Hazardous operations 170400Z to 171000Z nov, alternate 0400Z to 1000Z daily 18 and 19 nov in areas bound by:…Eastern North Pacific · North Pacific
- HYDROPAC 3337/202020-11-12 → 2020-11-19Hazardous operations 170400Z to 171000Z nov, alternate 0400Z to 1000Z daily 18 and 19 nov in areas bound by:…Eastern North Pacific · North Pacific
- NAVAREA XII 506/202020-11-10 → 2020-11-13Hazardous operations 131800Z to 132300Z nov, alternate 141800Z to 142300Z and 151800Z to 152300Z nov in area…Eastern North Pacific · California
- HYDROPAC 3307/202020-11-08 → 2020-11-12Hazardous operations 082300Z to 121355Z nov in areas within three miles of: a. 13-26N 145-08EWestern North Pacific · Philippine Sea · Guam
- HYDROPAC 3254/202020-11-04 → 2020-11-12Gunnery exercises 082100Z to 090900Z nov, alternate 2100Z to 0900Z daily 09 thru 11 novWestern North Pacific
- HYDROPAC 3252/202020-11-04 → 2020-11-04Gunnery exercises 082100Z to 090900Z nov, alternate 2100Z to 0900Z daily 09 thru 11 novWestern North Pacific
- HYDROPAC 3247/202020-11-04 → 2020-11-05Hazardous operations 042300Z to 051355Z nov in areas within three miles of: a. 13-26N 145-08EWestern North Pacific · Philippine Sea · Guam
- HYDROPAC 3231/202020-11-03 → 2020-11-04Hazardous operations 032300Z to 041355Z nov in areas within three miles of: a. 13-26N 145-08EWestern North Pacific · Philippine Sea · Guam
- HYDROPAC 3215/202020-11-02 → 2020-11-03Hazardous operations 022300Z to 031355Z nov in areas within three miles of: a. 13-26N 145-08EWestern North Pacific · Philippine Sea · Guam
- NAVAREA XII 500/202020-11-01 → 2020-11-06Hazardous operations 061800Z thru 070100Z and 071900Z thru 080100Z nov in area bound by 33-44-53N…Eastern North Pacific · California
- NAVAREA XII 498/202020-10-30 → 2020-11-08Hazardous operations 1500Z to 0100Z daily 03 thru 07 nov in area bound by 33-22-15N 120-10-00W, 33-24-34N…Eastern North Pacific · California
- NAVAREA XII 496/202020-10-28 → 2020-10-29Hazardous operations: a. 0631Z to 1359Z daily 28 thru 02 nov in area bound by 34-40N 121-18W, 34-57N…Eastern North Pacific · California
- HYDROPAC 3158/202020-10-27 → 2020-11-01Hazardous operations 280700Z to 281434Z oct, alternate 290726Z to 291500Z and 0700Z to 1500Z daily 30 oct…North Pacific · Marshall Islands
- NAVAREA XII 494/202020-10-27 → 2020-12-01Hazardous operations 010800Z nov to 010800Z dec in area bound by 32-52-42N 119-11-58W, 33-08-04N 118-52-05W,…Eastern North Pacific · California
- NAVAREA XII 493/202020-10-27 → 2020-12-01Hazardous operations 010800Z nov to 010800Z dec in area bound by 32-55-00N 118-25-00W, 32-55-00N 118-15-00W,…Eastern North Pacific · California
- NAVAREA XII 492/202020-10-27 → 2020-12-01Hazardous operations 010800Z nov to 010800Z dec in area bound by 32-33N 118-25W, 32-35N 118-16W, 32-35N…Eastern North Pacific · California
- HYDROPAC 3148/202020-10-27 → 2020-10-29Hazardous operations 2300Z to 1355Z commencing daily 27 and 28 oct in areas within three miles of: a. 13-26N…Western North Pacific · Philippine Sea · Guam
- NAVAREA XII 490/202020-10-26 → 2020-10-31Hazardous operations 301400Z to 310400Z oct in area bound by 13-39-42N 090-47-12W, 13-39-42N 090-44-00W,…Eastern North Pacific · Guatemala
- NAVAREA XII 489/202020-10-26 → 2020-10-30Hazardous operations 281600Z to 281900Z oct, alternate 301600Z to 301900Z oct in area within 25 miles of…Eastern North Pacific · California
- NAVAREA XII 488/202020-10-26 → 2020-10-29Hazardous operations 291159Z to 292100Z oct in area bound by 33-27N 119-56W, 32-20N 120-55W, 32-28N 121-32W,…Eastern North Pacific · California
- HYDROPAC 3133/202020-10-26 → 2020-10-27Hazardous operations 262300Z to 271355Z oct in areas within three miles of: a. 13-26N 145-08EWestern North Pacific · Philippine Sea · Guam
- HYDROPAC 3121/202020-10-25 → 2020-10-26Hazardous operations 252300Z to 261355Z oct in areas within three miles of: a. 13-26N 145-08EWestern North Pacific · Philippine Sea · Guam
- NAVAREA XII 485/202020-10-25 → 2020-10-25Hazardous operations 292100Z to 291159Z oct in area bound by 33-27N 119-56W, 32-20N 120-55W, 32-28N 121-32W,…Eastern North Pacific · California
- NAVAREA XII 481/202020-10-23 → 2020-10-24Hazardous operations 231500Z to 232230Z and 241500Z to 242230Z oct in area bound by 33-19N 119-37W, 33-20N…Eastern North Pacific · California
- NAVAREA XII 480/202020-10-23 → 2020-10-27Hazardous operations 231500Z to 232230Z, 241500Z to 242230Z and 271500Z to 272230Z oct in area bound by…Eastern North Pacific · California
- NAVAREA XII 479/202020-10-23 → 2020-10-27Hazardous operations 271500Z to 272230Z oct in area bound by 33-52N 120-30W, 33-41N 119-54W, 33-24N 119-36W,…Eastern North Pacific · California
- NAVAREA XII 478/202020-10-23 → 2020-10-28Hazardous operations: a. 0631Z to 1359Z daily 28 thru 31 oct in area bound by 34-40N 121-18W, 34-57N…Eastern North Pacific · California
- HYDROPAC 3097/202020-10-23 → 2020-10-29Hazardous operations 280700Z to 281434Z oct, alternate 290726Z to 291500Z oct in areas bound by: a. 09-15N…North Pacific · Marshall Islands
- HYDROPAC 3084/202020-10-22 → 2020-10-23Hazardous operations 222300Z to 231355Z oct in areas within three miles of: a. 13-26N 145-08EWestern North Pacific · Philippine Sea · Guam
- HYDROPAC 3066/202020-10-21 → 2020-10-22Hazardous operations 212300Z to 221355Z oct in areas within three miles of: a. 13-26N 145-08EWestern North Pacific · Philippine Sea · Guam
- HYDROPAC 3057/202020-10-20 → 2020-10-21Hazardous operations 202300Z to 211355Z oct in areas within three miles of: a. 13-26N 145-08EWestern North Pacific · Philippine Sea · Guam
- NAVAREA XII 474/202020-10-19 → 2020-10-20Hazardous operations 201030Z to 202000Z oct in areas bound by: a. 33-10.33N 121-08.72W, 33-29.30N…Eastern North Pacific · California
- NAVAREA XII 470/202020-10-17 → 2020-10-23Hazardous operations 221930Z to 230030Z oct in area within 22 miles of 34-39N 121-09W 2. cancel this msg…Eastern North Pacific · California
- NAVAREA XII 465/202020-10-15 → 2020-10-22Hazardous operations 1300Z to 2300Z daily 20 thru 22 oct in area bound by 14-40N 093-07W, 14-33N 092-57W,…Eastern North Pacific · Mexico
- NAVAREA XII 464/202020-10-15 → 2020-10-22Hazardous operations 1300Z to 2300Z daily 20 thru 22 oct in area bound by 15-20N 097-15W, 15-10N 097-15W,…Eastern North Pacific · Mexico
- NAVAREA XII 463/202020-10-15 → 2020-10-22Hazardous operations 1300Z to 2300Z daily 20 thru 22 oct in area bound by 17-00N 102-45W, 17-08N 102-45W,…Eastern North Pacific · Mexico
- NAVAREA XII 462/202020-10-15 → 2020-10-22Hazardous operations 1300Z to 2300Z daily 20 thru 22 oct in area bound by 21-04N 106-09W, 21-14N 106-09W,…Eastern North Pacific · Mexico
- NAVAREA XII 460/202020-10-15 → 2020-10-22Hazardous operations 1300Z to 2300Z daily 20 thru 22 oct in area bound by 24-28.7N 111-48.0W, 24-28.7N…Eastern North Pacific · Mexico
- NAVAREA XII 459/202020-10-15 → 2020-10-22Hazardous operations 1300Z to 2300Z daily 20 thru 22 oct in area bound by 31-10N 116-40W, 31-00N 116-40W,…Eastern North Pacific · Mexico
- NAVAREA XII 458/202020-10-14 → 2020-10-19Hazardous operations 191030Z to 191700Z oct, alternate 201030Z to 201700Z oct in areas bound by: a.…Eastern North Pacific · California
- HYDROPAC 2982/202020-10-14 → 2020-10-15Hazardous operations 142300Z to 151355Z oct in areas within three miles of: a. 13-26N 145-08EWestern North Pacific · Philippine Sea · Guam
- HYDROPAC 2974/202020-10-13 → 2020-10-14Hazardous operations 132300Z to 141355Z oct in areas within three miles of: a. 13-26N 145-08EWestern North Pacific · Philippine Sea · Guam
- NAVAREA XII 456/202020-10-12 → 2020-10-18Hazardous operations 131200Z to 182200Z oct in area bound by 32-34.0N 117-16.0W, 32-33.4N 117-16.8W,…Eastern North Pacific · California
- HYDROPAC 2959/202020-10-12 → 2020-10-13Hazardous operations 130200Z to 131300Z oct in areas within three miles of: a. 13-26N 145-08EWestern North Pacific · Philippine Sea · Guam
- HYDROPAC 2925/202020-10-09 → 2020-10-11Hazardous operations 110200Z to 111300Z oct 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.