Exercises
Hazardous operations 291630Z to 291800Z jul and 031630Z to 031800Z aug in area bound by 35-45N 123-55W,…
NAVAREA XII 246/99
- issued
- 1999-07-21 02:54Z
- status
- cancelled 1999-08-03 19:00Z (archive)
- self-cancels
- 1999-08-03 19:00Z
- authority
- FF SAN DIEGO 202340Z JUL 99
- sea
- North Pacific Ocean
- position
- 35.514, -122.811
- source
- nga_json · first seen 2026-08-17 13:38Z
Original warning text
1. HAZARDOUS OPERATIONS 291630Z TO 291800Z JUL AND 031630Z TO 031800Z AUG IN AREA BOUND BY 35-45N 123-55W, 35-45N 121-50W, 35-33N 121-40W, 35-05N 122-43W, 35-30N 123-00W, 35-08N 123-33W. 2. CANCEL THIS MSG 031900Z AUG.
Activity windows · 2 in this warning
| opens (UTC) | closes (UTC) | local | length |
|---|---|---|---|
| 1999-07-29 16:30Z | 1999-07-29 18:00Z | — | 1 h 30 |
| 1999-08-03 16:30Z | 1999-08-03 18:00Z | — | 1 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
315 within 180 nm since 1999 · 1 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 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 051530Z to 52330Z, alternate 061530Z to 062330Z apr in area bound by 33-51.03N…2024-04-02
- 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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M
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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.