Exercises
Hazardous operations 1101Z to 1831Z daily 10 thru 12 sep in areas bound by: a. 34-48N 121-00W, 34-50N…
NAVAREA XII 240/03
- issued
- 2003-09-06 09:40Z
- status
- cancelled 2003-09-10 13:43Z (archive)
- self-cancels
- 2003-09-12 19:31Z
- authority
- VAFB OP#W6459 281615Z AUG 03
- sea
- North Pacific Ocean
- position
- 34.205, -126.114
- source
- nga_json · first seen 2026-08-17 13:38Z
Original warning text
1. HAZARDOUS OPERATIONS 1101Z TO 1831Z DAILY 10 THRU 12 SEP
IN AREAS BOUND BY:
A. 34-48N 121-00W, 34-50N 121-00W,
34-52N 120-36W, 34-50N 120-36W.
B. 34-32N 126-18W, 35-00N 122-03W,
34-28N 121-58W, 34-00N 126-14W.
C. 32-53N 136-24W, 33-05N 135-24W,
32-38N 135-16W, 32-26N 136-16W.
2. CANCEL THIS MSG 121931Z SEP.
Activity windows · 3 in this warning
| opens (UTC) | closes (UTC) | local | length |
|---|---|---|---|
| 2003-09-10 11:01Z | 2003-09-10 18:31Z | — | 7 h 30 |
| 2003-09-11 11:01Z | 2003-09-11 18:31Z | — | 7 h 30 |
| 2003-09-12 11:01Z | 2003-09-12 18:31Z | — | 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
138 within 180 nm since 1999 · 1 in the last 12 months · 0 in force now
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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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F
M
A
M
J
J
A
S
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N
D
month of issue, all years in the archive
Timeline
- Cancel NAVAREA XII 240/03 and this msg, operations completedcancelled by · 2003-09-10
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.