Exercises
Hazardous operations 141600Z to 142200Z apr, alternate 151600Z to 152200Z apr in area bound by 33-47-13N…
Eastern North Pacific · California · NAVAREA XII 151/18
- issued
- 2018-04-10 16:08Z
- status
- cancelled 2018-04-15 23:00Z (archive)
- self-cancels
- 2018-04-15 23:00Z
- authority
- SEA RANGE OTC 101605Z APR 18.
- sea
- North Pacific Ocean
- position
- 32.803, -121.290
- source
- nga_json · first seen 2026-08-17 13:38Z
Original warning text
EASTERN NORTH PACIFIC. CALIFORNIA. 1. HAZARDOUS OPERATIONS 141600Z TO 142200Z APR, ALTERNATE 151600Z TO 152200Z APR IN AREA BOUND BY 33-47-13N 121-09-58W, 32-18-01N 120-10-42W, 31-54-02N 121-34-20W, 33-14-53N 122-19-30W. 2. CANCEL THIS MSG 152300Z APR 18.
Activity windows · 2 in this warning
| opens (UTC) | closes (UTC) | local | length |
|---|---|---|---|
| 2018-04-14 16:00Z | 2018-04-14 22:00Z | — | 6 h |
| 2018-04-15 16:00Z | 2018-04-15 22:00Z | — | 6 h |
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
1153 within 180 nm since 1999 · 7 in the last 12 months · 4 in force now
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- Hazardous operations 251300Z to 252100Z aug, alternate 261300Z to 262100Z aug in area bound by 33-37.00N…2026-08-20
- Hazardous operations 251400Z to 252000Z aug, alternate 261400Z to 262000Z aug in area within 56 miles of…2026-08-20
- Hazardous operations 221200Z to 230100Z aug, alternate 1230Z to 0100Z daily 23 and 24 aug in area bound by:…2026-08-17
- Hazardous operations 181700Z to 190001Z aug, alternate 1700Z to 0100Z daily, 20 thru 21 aug in area bound by…2026-08-13
- 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
Season · when military exercises happen here
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month of issue, all years in the archive
Timeline
- Cancel NAVAREA XII 151/18 and this msg, operations completedcancelled by · 2018-04-14
Nearby now · within 120 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.