Exercises
Hazardous operations 181600Z to 182359Z aug, alternate 201600Z to 202359Z aug in area bound by 33-53-42N…
Eastern North Pacific · California · NAVAREA XII 417/21
- issued
- 2021-08-14 17:23Z
- status
- cancelled 2021-08-19 03:28Z (archive)
- self-cancels
- 2021-08-21 01:00Z
- cancels
- NAVAREA XII 411/21
- authority
- NAWCWD 130152Z AUG 21.
- sea
- North Pacific Ocean
- position
- 33.594, -119.571
- source
- nga_json · first seen 2026-08-17 13:38Z
Original warning text
EASTERN NORTH PACIFIC. CALIFORNIA. 1. HAZARDOUS OPERATIONS 181600Z TO 182359Z AUG, ALTERNATE 201600Z TO 202359Z AUG IN AREA BOUND BY 33-53-42N 119-19-05W, 33-43-29N 119-09-36W, 33-27-52N 119-09-40W, 33-17-34N 119-19-11W, 33-17-34N 119-48-07W, 33-26-21N 119-58-43W, 33-43-39N 119-58-52W, 33-53-31N 119-49-14W. 2. CANCEL NAVAREA XII 411/21. 3. CANCEL THIS MSG 210100Z AUG 21.
Activity windows · 2 in this warning
| opens (UTC) | closes (UTC) | local | length |
|---|---|---|---|
| 2021-08-18 16:00Z | 2021-08-18 23:59Z | — | 7 h 59 |
| 2021-08-20 16:00Z | 2021-08-20 23:59Z | — | 7 h 59 |
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
1093 within 180 nm since 1999 · 8 in the last 12 months · 5 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 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
Season · when military exercises happen here
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month of issue, all years in the archive
Timeline
- Hazardous operations 161630Z to 162230Z and 171630Z to 172230Z aug, alternate 1630Z to 2230Z daily 18 thru…cancels · 2021-08-13
- Hazardous operations 161630Z to 162230Z and 171630Z to 172230Z aug, alternate 1630Z to 2230Z daily 18 thru…replaced · 2021-08-13
- Cancel NAVAREA XII 400/21, 409/21, 410/21, 417/21 and this msg, operations completedcancelled by · 2021-08-19
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 · 11 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 · 56.8 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 · 76.8 nm
- Hazardous operations 010800Z aug to 010800Z sep in area bound by 32-33.00N 118-25.00W, 32-35.00N 118-16.00W,…Exercises · 111.7 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.