Exercises
Hazardous operations 1330Z to 1900Z daily 31 aug thru 04 sep in areas: a. bound by 34-52N 120-51W, 34-52N…
NAVAREA XII 221/06
- issued
- 2006-08-29 18:53Z
- status
- cancelled 2006-09-04 20:00Z (archive)
- self-cancels
- 2006-09-04 20:00Z
- authority
- FAX 2D ROPS 29 AUG 06.
- sea
- North Pacific Ocean
- position
- 34.849, -120.746
- source
- nga_json · first seen 2026-08-17 13:38Z
Original warning text
1. HAZARDOUS OPERATIONS 1330Z TO 1900Z DAILY 31 AUG THRU
04 SEP IN AREAS:
A. BOUND BY 34-52N 120-51W, 34-52N 120-36W,
34-51N 120-36W, 34-49N 120-51W.
B. BETWEEN 34-49N 34-52N AND 120-35W 120-39W.
2. CANCEL THIS MSG 042000Z SEP.
Activity windows · 5 in this warning
| opens (UTC) | closes (UTC) | local | length |
|---|---|---|---|
| 2006-08-31 13:30Z | 2006-08-31 19:00Z | — | 5 h 30 |
| 2006-09-01 13:30Z | 2006-09-01 19:00Z | — | 5 h 30 |
| 2006-09-02 13:30Z | 2006-09-02 19:00Z | — | 5 h 30 |
| 2006-09-03 13:30Z | 2006-09-03 19:00Z | — | 5 h 30 |
| 2006-09-04 13:30Z | 2006-09-04 19:00Z | — | 5 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
1014 within 180 nm since 1999 · 6 in the last 12 months · 3 in force now
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00
05
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20
25
26
- Hazardous operations 251300Z to 252100Z aug, alternate 261300Z to 262100Z aug in area bound by 33-37.00N…2026-08-20
- Hazardous operations 251400Z to 252000Z aug, alternate 261400Z to 262000Z aug in area within 56 miles of…2026-08-20
- Hazardous operations 221200Z to 230100Z aug, alternate 1230Z to 0100Z daily 23 and 24 aug in area bound by:…2026-08-17
- Hazardous operations 181700Z to 190001Z aug, alternate 1700Z to 0100Z daily, 20 thru 21 aug in area bound by…2026-08-13
- Hazardous operations 010800Z aug to 010800Z sep in area bound by 32-55.00N 118-25.00W, 32-55.00N 118-15.00W,…2026-07-23
- Hazardous operations 010800Z aug to 010800Z sep in area bound by 32-52.70N 119-11.96W, 33-08.06N 118-52.09W,…2026-07-23
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
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.