Exercises
Hazardous operations
Eastern North Pacific · NAVAREA XII 96/12
- issued
- 2012-04-05 07:58Z
- status
- cancelled 2012-04-05 17:57Z (archive)
- self-cancels
- 2012-04-13 18:31Z
- authority
- WESTERN RANGE OP W4537 231600Z MAR 12.
- sea
- North Pacific Ocean
- position
- 34.258, -126.376
- source
- nga_json · first seen 2026-08-17 13:38Z
Original warning text
EASTERN NORTH PACIFIC.
HAZARDOUS OPERATIONS.
1. HAZARDOUS OPERATIONS 0905Z TO 1731Z DAILY
10 THRU 13 APR IN AREAS BOUND BY:
A. 34-49N 120-59W, 34-50N 120-59W,
34-52N 120-36W, 34-50N 120-36W.
B. 34-36N 126-26W, 35-00N 122-10W,
34-29N 122-06W, 34-05N 126-23W.
C. 33-03N 136-55W, 33-14N 135-55W,
32-47N 135-47W, 32-36N 136-48W.
2. CANCEL THIS MSG 131831Z APR.
Activity windows · 4 in this warning
| opens (UTC) | closes (UTC) | local | length |
|---|---|---|---|
| 2012-04-10 09:05Z | 2012-04-10 17:31Z | — | 8 h 26 |
| 2012-04-11 09:05Z | 2012-04-11 17:31Z | — | 8 h 26 |
| 2012-04-12 09:05Z | 2012-04-12 17:31Z | — | 8 h 26 |
| 2012-04-13 09:05Z | 2012-04-13 17:31Z | — | 8 h 26 |
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
126 within 180 nm since 1999 · 1 in the last 12 months · 0 in force now
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00
05
10
15
20
25
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 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
- Hazardous operations 191400Z to 192100Z aug in areas bound by: a. 32-41.90N 121-37.73W, 32-51.43N…2023-08-15
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
Timeline
- Hazardous operationscancelled by · 2012-04-05
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.