Exercises

Hazardous operations 1956Z to 2143Z daily 25 thru 27 mar in areas bound by: a. 34-28N 120-38W, 34-30N…

NAVAREA XII 93/00

issued: 2000-03-20 09:10Z
status: cancelled 2000-03-25 22:04Z (archive)
self-cancels: 2000-03-27 22:43Z
authority: VAFB OP # 04977 082245Z MAR 00
sea: North Pacific Ocean
position: 16.676, -123.871
source: nga_json · first seen 2026-08-17 13:38Z

Original warning text

1. HAZARDOUS OPERATIONS 1956Z TO 2143Z 
   DAILY 25 THRU 27 MAR IN AREAS BOUND BY:
   A. 34-28N 120-38W, 34-30N 120-48W, 34-46N 120-42W, 34-44N 120-33W.
   B. 34-05N 121-00W, 34-24N 120-53W, 34-19N 120-37W, 34-01N 120-43W.
   C. 12-47N 126-05W, 20-46N 125-00W, 20-20N 121-38W, 12-21N 122-51W.
2. CANCEL THIS MSG 272243Z MAR.

Activity windows · 3 in this warning

opens (UTC)	closes (UTC)	local	length
2000-03-25 19:56Z	2000-03-25 21:43Z	—	1 h 47
2000-03-26 19:56Z	2000-03-26 21:43Z	—	1 h 47
2000-03-27 19:56Z	2000-03-27 21:43Z	—	1 h 47

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

32 within 180 nm since 2000 · 0 in the last 12 months · 0 in force now

Hazardous operations 151212Z to 151547Z sep, alternate 1212Z to 1547Z daily 16 thru 18 sep in area bound by…2018-09-10
Hazardous operations2011-06-04
Hazardous operations2010-11-03
Hazardous operations2010-11-03
Hazardous operations2010-10-28
Hazardous operations2010-10-26

Season · when military exercises happen here

month of issue, all years in the archive

Timeline

Cancel NAVAREA XII 93/00 and this msg, operations cancelledcancelled by · 2000-03-25

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.