Exercises

Hazardous operations 281800Z to 281900Z and 282200Z to 282300Z sep in areas: a. bound by 31-00N 118-25W,…

NAVAREA XII 331/99

issued
1999-09-25 00:05Z
status
cancelled 1999-09-29 00:01Z (archive)
self-cancels
1999-09-29 00:01Z
authority
FACSFAC SAN DIEGO 242345Z SEP 99
sea
North Pacific Ocean
position
30.793, -117.214
source
nga_json · first seen 2026-08-17 13:38Z

Original warning text

1. HAZARDOUS OPERATIONS 281800Z TO 281900Z AND
   282200Z TO 282300Z SEP IN AREAS:
   A. BOUND BY 31-00N 118-25W, 31-00N 117-40W, 30-25N 117-40W,
      31-25N 118-25W.
   B. BOUND BY 31-10N 117-35W, 31-10N 116-45W, 30-25N 116-15W,
      30-25N 117-35W.
   C. BETWEEN 30-25N 29-35N AND 118-25W 116-15W.
2. CANCEL THIS MSG 290001Z SEP.

Activity windows · 2 in this warning

opens (UTC)closes (UTC)locallength
1999-09-28 18:00Z1999-09-28 19:00Z1 h
1999-09-28 22:00Z1999-09-28 23:00Z1 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

478 within 180 nm since 1999 · 4 in the last 12 months · 4 in force now

99
00
05
10
15
20
25
26

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.