Exercises
Hazardous operations 1738Z to 1956Z daily 25 thru 27 aug in areas bound by: a. 34-25N 120-28W, 34-24N…
NAVAREA XII 228/01
- issued
- 2001-08-20 09:10Z
- status
- cancelled 2001-08-21 22:40Z (archive)
- self-cancels
- 2001-08-27 20:56Z
- authority
- VAFB OP #W4300 161644Z AUG 01
- sea
- North Pacific Ocean
- position
- 21.708, -115.089
- source
- nga_json · first seen 2026-08-17 13:38Z
Original warning text
1. HAZARDOUS OPERATIONS 1738Z TO 1956Z
DAILY 25 THRU 27 AUG IN AREAS BOUND BY:
A. 34-25N 120-28W, 34-24N 120-31W,
34-38N 120-37W, 34-39N 120-34W.
B. 32-42N 120-01W, 33-18N 120-16W,
33-26N 119-48W, 32-50N 119-33W.
C. 25-49N 118-00W, 28-03N 118-47W,
28-26N 117-22W, 26-12N 116-37W.
D. 24-36N 117-19W, 25-47N 117-45W,
26-08N 116-33W, 24-57N 116-09W.
E. 19-42N 116-00W, 22-43N 117-11W,
23-43N 114-08W, 20-42N 113-01W.
2. CANCEL THIS MSG 272056Z AUG 01.
Activity windows · 3 in this warning
| opens (UTC) | closes (UTC) | local | length |
|---|---|---|---|
| 2001-08-25 17:38Z | 2001-08-25 19:56Z | — | 2 h 18 |
| 2001-08-26 17:38Z | 2001-08-26 19:56Z | — | 2 h 18 |
| 2001-08-27 17:38Z | 2001-08-27 19:56Z | — | 2 h 18 |
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
7 within 180 nm since 2000 · 0 in the last 12 months · 0 in force now
00
03
- Hazardous operations 0733Z to 1129Z daily 02 thru 04 dec in areas bound by: a. 34-25N 120-27W, 34-24N…2003-11-27
- Hazardous operations 1426Z to 1637Z daily 08 thru 10 sep in areas bound by: a. 34-25N 120-27W, 34-24N…2001-09-03
- Hazardous operations 1930Z to 0300Z commencing daily 31 aug thru 03 sep in areas bound by: a. 34-25N…2001-08-25
- Hazardous operations 1227Z to 1500Z daily 06 thru 08 jun in areas bound by: a. 35-29N 123-09W, 36-09N…2000-06-06
- Hazardous operations 1227Z to 1455Z daily 06 thru 08 jun in areas bound by: a. 35-29N 123-09W, 36-09N…2000-06-01
- Hazardous operations 1227Z to 1455Z daily 20 thru 22 may in areas bound by: a. 35-29N 123-09W, 36-09N…2000-05-16
Season · when military exercises happen here
J
F
M
A
M
J
J
A
S
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N
D
month of issue, all years in the archive
Timeline
- Cancel NAVAREA XII 228/01 and this messagecancelled by · 2001-08-21
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.