Exercises
Hazardous operations 0801Z to 1401Z daily 05 thru 07 nov in areas bound by: a. 34-50N 121-01W, 34-52N…
NAVAREA XII 458/08
- issued
- 2008-11-01 09:50Z
- status
- cancelled 2008-11-05 11:43Z (archive)
- self-cancels
- 2008-11-07 15:01Z
- authority
- WESTERN RANGE OP W1076 271707Z OCT 08.
- sea
- North Pacific Ocean
- position
- 34.542, -124.383
- source
- nga_json · first seen 2026-08-17 13:38Z
Original warning text
1. HAZARDOUS OPERATIONS 0801Z TO 1401Z DAILY
05 THRU 07 NOV IN AREAS BOUND BY:
A. 34-50N 121-01W, 34-52N 121-01W,
34-53N 120-39W, 34-52N 120-39W.
B. 34-36N 126-33W, 35-01N 122-17W,
34-29N 122-13W, 34-04N 126-29W.
C. 32-54N 137-29W, 33-06N 136-29W,
32-38N 136-21W, 32-27N 137-21W.
2. CANCEL THIS MSG 071501Z NOV.
Activity windows · 3 in this warning
| opens (UTC) | closes (UTC) | local | length |
|---|---|---|---|
| 2008-11-05 08:01Z | 2008-11-05 14:01Z | — | 6 h |
| 2008-11-06 08:01Z | 2008-11-06 14:01Z | — | 6 h |
| 2008-11-07 08:01Z | 2008-11-07 14:01Z | — | 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
272 within 180 nm since 1999 · 0 in the last 12 months · 0 in force now
99
00
05
10
15
20
24
- 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
- Hazardous operations 221900Z to 222200Z feb in area within 33 miles of 34-27.00N 121-52.75W2024-02-18
- Hazardous operations 132000Z to 140001Z feb in area within 33 miles of 34-36.11N 122-06.54W2024-02-12
Season · when military exercises happen here
J
F
M
A
M
J
J
A
S
O
N
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month of issue, all years in the archive
Timeline
- Cancel NAVAREA XII 458/08, operations completedcancelled by · 2008-11-05
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.