Exercises
Hazardous operations 0931Z to 1624Z daily 22 thru 27 may: a. in area bound by 34-53N 120-59W, 34-54N…
NAVAREA XII 184/08
- issued
- 2008-05-17 10:15Z
- status
- cancelled 2008-05-22 16:58Z (archive)
- self-cancels
- 2008-05-27 17:24Z
- authority
- WESTERN RANGE OPS W2187 13 MAY 08.
- sea
- North Pacific Ocean
- position
- 35.207, -124.274
- source
- nga_json · first seen 2026-08-17 13:38Z
Original warning text
1. HAZARDOUS OPERATIONS 0931Z TO 1624Z DAILY 22 THRU 27 MAY:
A. IN AREA BOUND BY
34-53N 120-59W, 34-54N 120-59W,
34-52N 120-36W, 34-50N 120-36W.
B. IN AREA BOUND BY
35-40N 126-24W, 35-17N 122-06W,
34-45N 122-10W, 35-08N 126-29W.
C. IN AREA BETWEEN
36-00N 35-32N AND 137-18W 136-14W.
2. CANCEL THIS MSG 271724Z MAY.
Activity windows · 6 in this warning
| opens (UTC) | closes (UTC) | local | length |
|---|---|---|---|
| 2008-05-22 09:31Z | 2008-05-22 16:24Z | — | 6 h 53 |
| 2008-05-23 09:31Z | 2008-05-23 16:24Z | — | 6 h 53 |
| 2008-05-24 09:31Z | 2008-05-24 16:24Z | — | 6 h 53 |
| 2008-05-25 09:31Z | 2008-05-25 16:24Z | — | 6 h 53 |
| 2008-05-26 09:31Z | 2008-05-26 16:24Z | — | 6 h 53 |
| 2008-05-27 09:31Z | 2008-05-27 16:24Z | — | 6 h 53 |
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
257 within 180 nm since 1999 · 2 in the last 12 months · 0 in force now
99
00
05
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15
20
25
26
- Hazardous operations 251400Z to 252000Z aug, alternate 261400Z to 262000Z aug in area within 56 miles of…2026-08-20
- Hazardous operations 190900Z to 192100Z aug, alternate 0900Z to 2100Z daily 20 and 21 aug in areas bound by:…2026-08-17
- Hazardous operations 151900Z to 160000Z may in area bound by 34-39.47N 121-13.08W, 34-23.43N 121-02.07W,…2024-05-09
- Hazardous operations 082000Z to 090130Z may in area bound by 34-39.78N 121-13.13W, 34-23.72N 121-02.12W,…2024-05-03
- Hazardous operations 251400Z to 260030Z apr, alternate 261400Z to 270030Z and 291400Z to 300030Z apr in area…2024-04-23
- Hazardous operations 082030Z to 090030Z mar in area within 30 miles of 33-32.50N 122-23.50W2024-03-03
Season · when military exercises happen here
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F
M
A
M
J
J
A
S
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month of issue, all years in the archive
Timeline
- Cancel NAVAREA 184/08 and this msg, operations completedcancelled by · 2008-05-22
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.