Exercises
Hazardous operations 190140Z to 190404Z dec, alternate 200053Z to 200456Z dec within: a. 155 miles of…
NAVAREA XII 441/99
- issued
- 1999-12-18 05:40Z
- status
- cancelled 1999-12-20 05:56Z (archive)
- self-cancels
- 1999-12-20 05:56Z
- cancels
- NAVAREA XII 438/99
- authority
- CCAFS OP #2641, STS-103 180413Z DEC 99
- sea
- North Pacific Ocean
- position
- 20.822, -136.270
- source
- nga_json · first seen 2026-08-17 13:38Z
Original warning text
1. HAZARDOUS OPERATIONS 190140Z TO 190404Z DEC, ALTERNATE
200053Z TO 200456Z DEC WITHIN:
A. 155 MILES OF TRACKLINE BETWEEN
15-15N 150-48W AND 17-25N 145-56W.
B. 150 MILES OF TRACKLINE BETWEEN
17-25N 145-56W AND 19-32N 140-43W.
C. 140 MILES OF TRACKLINE BETWEEN
19-32N 140-43W AND 21-14N 135-58W.
D. 130 MILES OF TRACKLINE BETWEEN
21-14N 135-58W AND 23-01N 130-27W.
E. 120 MILES OF TRACKLINE BETWEEN
23-01N 130-27W AND 25-25N 121-24W.
2. CANCEL NAVAREA XII 438/99.
3. CANCEL THIS MSG 200556Z DEC.
Activity windows · 2 in this warning
| opens (UTC) | closes (UTC) | local | length |
|---|---|---|---|
| 1999-12-19 01:40Z | 1999-12-19 04:04Z | — | 2 h 24 |
| 1999-12-20 00:53Z | 1999-12-20 04:56Z | — | 4 h 03 |
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
14 within 180 nm since 1999 · 0 in the last 12 months · 0 in force now
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23
- Hazardous operations 051845Z to 052359Z apr, alternate 061845Z to 062359Z apr in areas bound by: a.…2023-04-03
- Hazardous operations 1845Z to 2359Z daily 03 thru 07 and 10 apr in areas bound by: a. 34-37.00N 121-24.00W,…2023-03-30
- Hazardous operations 271730Z to 280042Z oct, alternate 281730Z to 290042Z in areas bound by: a. 34-37.00N…2022-10-26
- Hazardous operations 261730Z to 270042Z oct, alternate 1730Z to 0042Z daily 27 and 28 oct in areas bound by:…2022-10-25
- Hazardous operations 251730Z to 260042Z oct, alternate 1730Z to 0042Z daily 26 thru 28 oct in areas bound…2022-10-23
- Hazardous operations 241730Z to 250042Z oct, alternate 1730Z to 0042Z daily 25 thru 28 oct in areas bound…2022-10-19
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.