Exercises
Hazardous operations 1800Z to 0001Z commencing daily 15 thru 19 aug in areas bound by: a. 34-45N 120-42W,…
NAVAREA XII 212/03
- issued
- 2003-08-11 10:05Z
- status
- cancelled 2003-08-16 18:58Z (archive)
- self-cancels
- 2003-08-20 01:01Z
- authority
- VAFB OP#W4413 061615Z AUG 03
- sea
- North Pacific Ocean
- position
- 16.976, -137.408
- source
- nga_json · first seen 2026-08-17 13:38Z
Original warning text
1. HAZARDOUS OPERATIONS 1800Z TO 0001Z COMMENCING DAILY
15 THRU 19 AUG IN AREAS BOUND BY:
A. 34-45N 120-42W, 34-46N 120-42W,
34-52N 120-36W, 34-51N 120-36W.
B. 32-06N 123-42W, 32-24N 123-23W,
32-17N 123-14W, 31-59N 123-32W.
C. 15-27N 139-12W, 18-05N 137-09W,
17-35N 136-27W, 14-57N 138-31W.
2. CANCEL THIS MSG 200101Z AUG.
Activity windows · 5 in this warning
| opens (UTC) | closes (UTC) | local | length |
|---|---|---|---|
| 2003-08-15 18:00Z | 2003-08-16 00:01Z | — | 6 h 01 |
| 2003-08-16 18:00Z | 2003-08-17 00:01Z | — | 6 h 01 |
| 2003-08-17 18:00Z | 2003-08-18 00:01Z | — | 6 h 01 |
| 2003-08-18 18:00Z | 2003-08-19 00:01Z | — | 6 h 01 |
| 2003-08-19 18:00Z | 2003-08-20 00:01Z | — | 6 h 01 |
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
2 within 180 nm since 2003 · 0 in the last 12 months · 0 in force now
03
05
10
- Hazardous operations2010-03-14
Season · when military exercises happen here
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month of issue, all years in the archive
Timeline
- Cancel NAVAREA XII 212/03 and this msg, operations completedcancelled by · 2003-08-16
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.