Exercises

Hazardous operations 2000Z to 0248Z commencing daily 08 mar thru 08 apr in area bound by 07-54N 140-24W,…

NAVAREA XII 77/01

issued: 2001-03-02 15:15Z
status: cancelled 2001-03-08 23:49Z (archive)
self-cancels: 2001-04-09 03:48Z
authority: COMAR GUYANE 7/01 021415Z MAR 01
sea: North Pacific Ocean
position: 6.499, -121.614
source: nga_json · first seen 2026-08-17 13:38Z

Original warning text

1. HAZARDOUS OPERATIONS 2000Z TO 0248Z COMMENCING DAILY
   08 MAR THRU 08 APR IN AREA BOUND BY 07-54N 140-24W,
   05-33N 104-20W, 05-24N 123-32W, 07-45N 123-36W.
2. CANCEL THIS MSG 090348Z APR.

Activity windows · 32 in this warning

opens (UTC)	closes (UTC)	local	length
2001-03-08 20:00Z	2001-03-09 02:48Z	—	6 h 48
2001-03-09 20:00Z	2001-03-10 02:48Z	—	6 h 48
2001-03-10 20:00Z	2001-03-11 02:48Z	—	6 h 48
2001-03-11 20:00Z	2001-03-12 02:48Z	—	6 h 48
2001-03-12 20:00Z	2001-03-13 02:48Z	—	6 h 48
2001-03-13 20:00Z	2001-03-14 02:48Z	—	6 h 48
2001-03-14 20:00Z	2001-03-15 02:48Z	—	6 h 48
2001-03-15 20:00Z	2001-03-16 02:48Z	—	6 h 48
… 24 more

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

1 within 180 nm since 2001 · 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

Cancel NAVAREA XII 77/01 and this msg, operations completedcancelled by · 2001-03-08

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.