Exercises
Hazardous operations
Gulf of Alaska · NAVAREA XII 154/10
- issued
- 2010-04-09 21:24Z
- status
- cancelled 2010-04-12 05:28Z (archive)
- self-cancels
- 2010-04-12 22:00Z
- authority
- COMCOGARD SECTOR JUNEAU 24/10 092042Z APR 10.
- sea
- North Pacific Ocean
- position
- 54.529, -139.319
- source
- nga_json · first seen 2026-08-17 13:38Z
Original warning text
GULF OF ALASKA.
HAZARDOUS OPERATIONS.
1. GUNNERY AND PYROTECHNICS EXERCISES:
A. 121500Z TO 121600Z APR
IN AREA BOUND BY
54-40N 138-59W, 53-50N 138-59W,
53-50N 137-33W.
B. 122000Z TO 122100Z APR
IN AREA BOUND BY
55-09N 138-59W, 55-09N 140-27W,
54-19N 140-27W, 54-19N 138-59W.
2. CANCEL THIS MSG 122200Z APR.
Activity windows · 2 in this warning
| opens (UTC) | closes (UTC) | local | length |
|---|---|---|---|
| 2010-04-12 15:00Z | 2010-04-12 16:00Z | — | 1 h |
| 2010-04-12 20:00Z | 2010-04-12 21:00Z | — | 1 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
38 within 180 nm since 2005 · 0 in the last 12 months · 0 in force now
05
10
15
20
24
- Gunnery exercises 081800Z to 090001Z may in area within 14 miles of 57-01.04N 136-26.40W2024-05-03
- Gunnery exercises 021800Z to 030000 may in area within 15 miles of 57-01.04N 136-26.40W2024-05-01
- Gunnery exercises 161900Z to 170400Z in area within five miles of 56-55.25N 136-25.00W2024-04-15
- Gunnery exercises 012100Z to 020100Z and 021700Z to 022100Z nov in area within 11 miles of 56-55.25N…2023-10-31
- Hazardous operations 2200Z to 0300Z daily 17 thru 24 aug in areas bound by: a. 47-40.00N 178-43.00W,…2023-08-17
- Hazardous operations 2200Z to 0300Z daily 16 thru 20 aug in areas bound by: a. 47-40.00N 178-43.00W,…2023-08-11
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 · 2010-04-12
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.