Exercises
Hazardous operations 111830Z to 112359Z dec, alternate 1630Z to 2359Z daily 12 thru 14 dec in area bound by…
Eastern North Pacific · California · NAVAREA XII 847/23
- issued
- 2023-12-07 20:40Z
- status
- cancelled 2023-12-13 00:24Z (archive)
- self-cancels
- 2023-12-15 00:59Z
- authority
- SEA RANGE OTC 0/23 071900Z DEC 23.
- sea
- North Pacific Ocean
- position
- 33.403, -120.153
- source
- nga_json · first seen 2026-08-17 13:38Z
Original warning text
EASTERN NORTH PACIFIC. CALIFORNIA. 1. HAZARDOUS OPERATIONS 111830Z TO 112359Z DEC, ALTERNATE 1630Z TO 2359Z DAILY 12 THRU 14 DEC IN AREA BOUND BY 33-47.00N 120-29.00W, 33-20.00N 119-28.00W, 33-05.00N 119-38.00W, 33-14.00N 120-03.00W, 33-09.00N 120-17.00W, 33-23.00N 120-46.00W. 2. CANCEL THIS MSG 150059Z DEC 23.
Activity windows · 4 in this warning
| opens (UTC) | closes (UTC) | local | length |
|---|---|---|---|
| 2023-12-11 18:30Z | 2023-12-11 23:59Z | — | 5 h 29 |
| 2023-12-12 16:30Z | 2023-12-12 23:59Z | — | 7 h 29 |
| 2023-12-13 16:30Z | 2023-12-13 23:59Z | — | 7 h 29 |
| 2023-12-14 16:30Z | 2023-12-14 23:59Z | — | 7 h 29 |
Parsed from the warning text; outside these windows the area is normally not active, but the warning stays in force until cancelled.
This area · military exercises
1123 within 180 nm since 1999 · 5 in the last 12 months · 5 in force now
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- Hazardous operations 181700Z to 190001Z aug, alternate 1700Z to 0100Z daily, 20 thru 21 aug in area bound by…2026-08-13
- Hazardous operations 191500Z to 202300Z aug in area within two miles of 32-35.87N 117-10.87W2026-08-12
- Hazardous operations 010800Z aug to 010800Z sep in area bound by 32-55.00N 118-25.00W, 32-55.00N 118-15.00W,…2026-07-23
- Hazardous operations 010800Z aug to 010800Z sep in area bound by 32-52.70N 119-11.96W, 33-08.06N 118-52.09W,…2026-07-23
- Hazardous operations 010800Z aug to 010800Z sep in area bound by 32-33.00N 118-25.00W, 32-35.00N 118-16.00W,…2026-07-23
- Hazardous operations 151900Z to 160000Z may in area bound by 34-39.47N 121-13.08W, 34-23.43N 121-02.07W,…2024-05-09
Season · when military exercises happen here
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month of issue, all years in the archive
Timeline
- Cancel NAVAREA XII 847/23 and this msg, operations completedcancelled by · 2023-12-13
Nearby now · within 120 nm
- Hazardous operations 181700Z to 190001Z aug, alternate 1700Z to 0100Z daily, 20 thru 21 aug in area bound by…Exercises · 40 nm
- Hazardous operations 010800Z aug to 010800Z sep in area bound by 32-52.70N 119-11.96W, 33-08.06N 118-52.09W,…Exercises · 72.7 nm
- Hazardous operations 010800Z aug to 010800Z sep in area bound by 32-55.00N 118-25.00W, 32-55.00N 118-15.00W,…Exercises · 96.1 nm
Worldwide now
35 military exercises in force · see all
Exercises
Gunnery, firing and naval exercise areas. All current military exercises →
Not for navigation. This is a re-rendering of an official navigational warning for awareness; mariners must use official NAVAREA broadcasts and their national MSI service.