Exercises
Hazardous operations 091700Z to 100100Z aug, alternate 101700Z to 110100Z and 111700Z to 120100Z aug in area…
Eastern North Pacific · California · NAVAREA XII 311/18
- issued
- 2018-08-03 08:31Z
- status
- cancelled 2018-08-03 13:11Z (archive)
- self-cancels
- 2018-08-12 02:00Z
- authority
- SEA RANGE OTC 030800Z AUG 18.
- sea
- North Pacific Ocean
- position
- 33.517, -121.096
- source
- nga_json · first seen 2026-08-17 13:38Z
Original warning text
EASTERN NORTH PACIFIC. CALIFORNIA. 1. HAZARDOUS OPERATIONS 091700Z TO 100100Z AUG, ALTERNATE 101700Z TO 110100Z AND 111700Z TO 120100Z AUG IN AREA BOUND BY 34-39N 122-03W, 32-50N 119-39W, 32-22N 120-13W, 34-21N 122-37W. 2. CANCEL THIS MSG 120200Z AUG 18.
Activity windows · 3 in this warning
| opens (UTC) | closes (UTC) | local | length |
|---|---|---|---|
| 2018-08-09 17:00Z | 2018-08-10 01:00Z | — | 8 h |
| 2018-08-10 17:00Z | 2018-08-11 01:00Z | — | 8 h |
| 2018-08-11 17:00Z | 2018-08-12 01:00Z | — | 8 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
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.