Exercises
Hazardous operations 0816Z to 1546Z daily 20 thru 22 aug in areas bound by: a. 34-48N 121-00W, 34-50N…
NAVAREA XII 279/99
- issued
- 1999-08-16 07:20Z
- status
- cancelled 1999-08-22 16:46Z (archive)
- self-cancels
- 1999-08-22 16:46Z
- authority
- VAFB OP# W0441 11715Z AUG 99; OP# W2923 111735Z AUG 99
- sea
- North Pacific Ocean
- position
- 34.433, -124.519
- source
- nga_json · first seen 2026-08-17 13:38Z
Original warning text
1. HAZARDOUS OPERATIONS 0816Z TO 1546Z DAILY 20 THRU 22 AUG IN AREAS BOUND BY: A. 34-48N 121-00W, 34-50N 121-00W, 34-52N 120-36W, 34-50N 120-36W. B. 34-32N 126-17W, 35-00N 122-01W, 34-28N 121-57W, 34-00N 126-12W. C. 32-51N 136-34W, 33-03N 135-34W, 32-36N 135-26W, 32-23N 136-26W. D. 34-50N 120-56W, 34-52N 120-56W, 34-53N 120-39W, 34-52N 120-39W. E. 34-24N 127-03W, 34-56N 122-48W, 34-24N 122-43W, 33-52N 126-57W. F. 32-32N 137-29W, 32-45N 136-29W, 32-18N 136-21W, 32-04N 137-20W. 2. CANCEL THIS MSG 221646Z AUG.
Activity windows · 3 in this warning
| opens (UTC) | closes (UTC) | local | length |
|---|---|---|---|
| 1999-08-20 08:16Z | 1999-08-20 15:46Z | — | 7 h 30 |
| 1999-08-21 08:16Z | 1999-08-21 15:46Z | — | 7 h 30 |
| 1999-08-22 08:16Z | 1999-08-22 15:46Z | — | 7 h 30 |
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
273 within 180 nm since 1999 · 2 in the last 12 months · 0 in force now
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- Hazardous operations 251400Z to 252000Z aug, alternate 261400Z to 262000Z aug in area within 56 miles of…2026-08-20
- Hazardous operations 190900Z to 192100Z aug, alternate 0900Z to 2100Z daily 20 and 21 aug in areas bound by:…2026-08-17
- 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
- Hazardous operations 082000Z to 090130Z may in area bound by 34-39.78N 121-13.13W, 34-23.72N 121-02.12W,…2024-05-03
- Hazardous operations 251400Z to 260030Z apr, alternate 261400Z to 270030Z and 291400Z to 300030Z apr in area…2024-04-23
- Hazardous operations 082030Z to 090030Z mar in area within 30 miles of 33-32.50N 122-23.50W2024-03-03
Season · when military exercises happen here
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month of issue, all years in the archive
Nearby now · within 120 nm
Nothing else in force 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.