Exercises
Hazardous operations 1751Z to 1951Z daily 27 thru 29 apr in areas bound by: a. 34-15N 120-41W, 34-16N…
NAVAREA XII 124/99
- issued
- 1999-04-23 13:57Z
- status
- cancelled 1999-04-27 00:00Z (archive)
- self-cancels
- 1999-04-29 20:51Z
- sea
- North Pacific Ocean
- position
- 20.700, -124.108
- source
- nga_json · first seen 2026-08-17 13:38Z
Original warning text
1. HAZARDOUS OPERATIONS 1751Z TO 1951Z DAILY 27 THRU 29 APR
IN AREAS BOUND BY:
A. 34-15N 120-41W, 34-16N 120-44W, 34-35N 120-39W,
34-34N 120-36W.
B. 34-15N 120-52W, 34-32N 120-46W, 34-28N 120-28W,
34-09N 120-34W.
C. 19-56N 124-35W, 21-35N 124-12W, 21-28N 123-38W,
19-49N 124-01W.
2. CANCEL THIS MSG 292051Z APR.Activity windows · 3 in this warning
| opens (UTC) | closes (UTC) | local | length |
|---|---|---|---|
| 1999-04-27 17:51Z | 1999-04-27 19:51Z | — | 2 h |
| 1999-04-28 17:51Z | 1999-04-28 19:51Z | — | 2 h |
| 1999-04-29 17:51Z | 1999-04-29 19:51Z | — | 2 h |
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
6 within 180 nm since 1999 · 0 in the last 12 months · 0 in force now
99
00
05
07
- Hazardous operations 1953Z to 2131Z daily 25 thru 27 apr in areas bound by: a. 35-32N 123-17W, 36-26N…2007-04-22
- Hazardous operations 1953Z to 2131Z daily 25 thru 27 apr in areas bound by: a. 35-32N 123-17W, 36-26N…2007-04-22
- Hazardous operations 1820Z to 2005Z daily 26 thru 30 jun in areas bound by: a. 35-39N 123-29W, 36-23N…2003-06-21
- Hazardous operations 1751Z to 1951Z daily 24 thru 27 sep in areas bound by: a. 34-09N 120-42W, 34-10N…1999-09-21
- Hazardous operations 0145Z to 0325Z daily 19 thru 21 jun in areas bound by: a. 34-24N 120-38W, 34-25N…1999-06-14
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
Timeline
- Cancel NAVAREA XII 124/99 and this msg, operations completedcancelled by · 1999-04-27
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.