Exercises
Hazardous operations 0801Z to 1401Z daily 13 thru 15 aug in areas bound by: a. 34-49N 121-01W, 34-50N…
NAVAREA XII 316/08
- issued
- 2008-08-09 06:43Z
- status
- cancelled 2008-08-13 10:01Z (archive)
- self-cancels
- 2008-08-15 15:01Z
- authority
- WESTERN RANGE OP W3984 04 AUG 08.
- sea
- North Pacific Ocean
- position
- 34.227, -126.001
- source
- nga_json · first seen 2026-08-17 13:38Z
Original warning text
1. HAZARDOUS OPERATIONS 0801Z TO 1401Z DAILY
13 THRU 15 AUG IN AREAS BOUND BY:
A. 34-49N 121-01W, 34-50N 121-01W,
34-52N 120-37W, 34-51N 120-37W.
B. 34-33N 126-13W, 35-01N 121-57W,
34-29N 121-53W, 34-01N 126-08W.
C. 32-56N 136-09W, 33-08N 135-09W,
32-41N 135-02W, 32-29N 136-02W.
2. CANCEL THIS MSG 151501Z AUG.
Activity windows · 3 in this warning
| opens (UTC) | closes (UTC) | local | length |
|---|---|---|---|
| 2008-08-13 08:01Z | 2008-08-13 14:01Z | — | 6 h |
| 2008-08-14 08:01Z | 2008-08-14 14:01Z | — | 6 h |
| 2008-08-15 08:01Z | 2008-08-15 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
141 within 180 nm since 1999 · 1 in the last 12 months · 0 in force now
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05
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26
- Hazardous operations 190900Z to 192100Z aug, alternate 0900Z to 2100Z daily 20 and 21 aug in areas bound by:…2026-08-17
- Hazardous operations 251400Z to 260030Z apr, alternate 261400Z to 270030Z and 291400Z to 300030Z apr in area…2024-04-23
- Hazardous operations 041200Z to 042030Z nov, alternate 1300Z to 2130Z daily 07 and 13 nov in areas bound by:…2023-10-30
- Hazardous operations 01 and 02 nov: a. 0631Z to 1335Z in area bound by 34-40.00N 121-25.00W, 34-40.00N…2023-10-26
- Hazardous operations 01 and 02 nov: a. 0631Z to 1335Z in area bound by 34-40.00N 121-25.00W, 34-40.00N…2023-10-26
- Hazardous operations daily 06 and 07 sep: a. 0631Z to 1337Z in area bound by 34-38.00N 121-23.00W, 34-38.00N…2023-09-01
Season · when military exercises happen here
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A
M
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J
A
S
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month of issue, all years in the archive
Timeline
- Cancel NAVAREA XII 316/08 and this msg, operations completedcancelled by · 2008-08-13
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.