Exercises
Hazardous operations 1930Z to 0130Z commencing daily 05 thru 08 dec in areas bound by: a. 34-52N 120-51W,…
NAVAREA XII 506/08
- issued
- 2008-11-30 09:17Z
- status
- cancelled 2008-12-09 02:30Z (archive)
- self-cancels
- 2008-12-09 02:30Z
- authority
- WESTERN RANGE OP W3072 251836Z NOV 08.
- sea
- North Pacific Ocean
- position
- 32.738, -141.888
- source
- nga_json · first seen 2026-08-17 13:38Z
Original warning text
1. HAZARDOUS OPERATIONS 1930Z TO 0130Z COMMENCING DAILY
05 THRU 08 DEC IN AREAS BOUND BY:
A. 34-52N 120-51W, 34-52N 120-36W,
34-51N 120-36W, 34-49N 120-51W.
B. 34-48N 126-24W, 34-51N 125-53W,
34-09N 125-48W, 34-07N 126-19W.
C. 31-51N 153-49W, 34-15N 153-03W,
36-50N 138-36W, 35-34N 132-28W,
30-34N 130-36W, 30-00N 131-39W,
27-51N 139-10W, 27-02N 149-54W,
27-44N 152-18W.
D. 40-45N 141-30W, 41-52N 134-28W,
38-30N 134-30W, 36-54N 138-36W.
2. CANCEL THIS MSG 090230Z DEC.
Activity windows · 4 in this warning
| opens (UTC) | closes (UTC) | local | length |
|---|---|---|---|
| 2008-12-05 19:30Z | 2008-12-06 01:30Z | — | 6 h |
| 2008-12-06 19:30Z | 2008-12-07 01:30Z | — | 6 h |
| 2008-12-07 19:30Z | 2008-12-08 01:30Z | — | 6 h |
| 2008-12-08 19:30Z | 2008-12-09 01:30Z | — | 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
15 within 180 nm since 1999 · 0 in the last 12 months · 0 in force now
99
00
05
08
- Hazardous operations 1330Z to 1917Z daily 25 thru 29 may in areas bound by: a. 34-52N 120-51W, 34-52N…2007-05-24
- Hazardous operations 1400Z to 1817Z daily 25 thru 29 may in areas bound by: a. 34-52N 120-51W, 34-52N…2007-05-23
- Hazardous operations 1330Z to 1917Z daily 24 thru 29 may in areas bound by: a. 34-52N 120-51W, 34-52N…2007-05-22
- Hazardous operations 0731Z to 1501Z daily 12 thru 14 mar in areas bound by: a. 34-48N 121-02W, 34-49N…2003-03-08
- Hazardous operations 030731Z to 031501Z jun in areas bound by: a. 34-48N 120-59W, 34-49N 120-59W, 34-52N…2002-05-29
- Hazardous operations 0731Z to 1501Z daily 02 thru 04 jun in areas bound by: a. 34-48N 120-59W, 34-49N…2002-05-28
Season · when military exercises happen here
J
F
M
A
M
J
J
A
S
O
N
D
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.