Exercises
Hazardous operations: a. 0632Z to 1359Z daily 02 thru 07 sep in area bound by 34-56N 121-16W, 34-56N…
Eastern North Pacific · California · NAVAREA XII 391/20
- issued
- 2020-08-28 09:05Z
- status
- cancelled 2020-09-02 07:38Z (archive)
- self-cancels
- 2020-09-07 14:59Z
- authority
- WESTERN RANGE 141627Z AUG 20.
- sea
- North Pacific Ocean
- position
- 34.583, -123.541
- source
- nga_json · first seen 2026-08-17 13:38Z
Original warning text
EASTERN NORTH PACIFIC.
CALIFORNIA.
1. HAZARDOUS OPERATIONS:
A. 0632Z TO 1359Z DAILY 02 THRU 07 SEP
IN AREA BOUND BY
34-56N 121-16W, 34-56N 120-54W,
34-55N 120-36W, 34-48N 120-36W,
34-43N 120-54W, 34-42N 121-16W.
B. 0632Z TO 1351Z DAILY 02 THRU 07 SEP
IN AREA BOUND BY
34-19N 124-54W, 34-33N 124-56W,
34-52N 122-10W, 34-37N 122-08W.
C. 0632Z TO 1351Z DAILY 02 THRU 07 SEP
IN AREA BOUND BY
32-22N 137-15W, 32-35N 137-19W,
32-50N 136-08W, 32-37N 136-04W.
2. CANCEL THIS MSG 071459Z SEP 20.
Activity windows · 12 in this warning
| opens (UTC) | closes (UTC) | local | length |
|---|---|---|---|
| 2020-09-02 06:32Z | 2020-09-02 13:51Z | — | 7 h 19 |
| 2020-09-02 06:32Z | 2020-09-02 13:59Z | — | 7 h 27 |
| 2020-09-03 06:32Z | 2020-09-03 13:51Z | — | 7 h 19 |
| 2020-09-03 06:32Z | 2020-09-03 13:59Z | — | 7 h 27 |
| 2020-09-04 06:32Z | 2020-09-04 13:51Z | — | 7 h 19 |
| 2020-09-04 06:32Z | 2020-09-04 13:59Z | — | 7 h 27 |
| 2020-09-05 06:32Z | 2020-09-05 13:51Z | — | 7 h 19 |
| 2020-09-05 06:32Z | 2020-09-05 13:59Z | — | 7 h 27 |
| … 4 more | |||
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
415 within 180 nm since 1999 · 2 in the last 12 months · 0 in force now
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05
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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 091900Z to 092200Z may in area bound by 33-53.45N 120-27.05W, 33-43.15N 119-46.30W,…2024-05-04
- 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
Season · when military exercises happen here
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A
M
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month of issue, all years in the archive
Timeline
- Cancel NAVAREA XII 391/20 and this msg, operations completedcancelled by · 2020-09-02
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.