Exercises

Hazardous operations 1730Z to 1901Z daily 08 thru 11 feb in areas bound by: a. 34-27N 120-40W, 34-29N…

NAVAREA XII 39/02

issued: 2002-02-04 08:20Z
status: cancelled 2002-02-09 16:45Z (archive)
self-cancels: 2002-02-11 20:01Z
sea: North Pacific Ocean
position: 13.192, -121.464
source: nga_json · first seen 2026-08-17 13:38Z

Original warning text

1. HAZARDOUS OPERATIONS 1730Z TO 1901Z DAILY 08 THRU 11 FEB
   IN AREAS BOUND BY:
   A. 34-27N 120-40W, 34-29N 120-47W, 34-46N 120-41W, 34-44N 120-34W.
   B. 34-08N 120-58W, 34-27N 120-51W, 34-23N 120-36W, 34-04N 120-43W.
   C. 30-55N 121-38W, 31-43N 121-29W, 31-39N 121-05W, 30-51N 121-15W.
   D. 09-10N 122-07W, 14-29N 122-01W, 14-27N 120-50W, 09-09N 120-58W.
2. CANCEL THIS MSG 112001Z FEB.

Activity windows · 4 in this warning

opens (UTC)	closes (UTC)	local	length
2002-02-08 17:30Z	2002-02-08 19:01Z	—	1 h 31
2002-02-09 17:30Z	2002-02-09 19:01Z	—	1 h 31
2002-02-10 17:30Z	2002-02-10 19:01Z	—	1 h 31
2002-02-11 17:30Z	2002-02-11 19:01Z	—	1 h 31

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

3 within 180 nm since 2002 · 0 in the last 12 months · 0 in force now

Season · when military exercises happen here

month of issue, all years in the archive

Timeline

Hazardous operations 1730Z to 1901Z daily 09 thru 12 feb in areas bound by: a. 34-27N 120-40W, 34-29N…cancelled by · 2002-02-09

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.