Exercises

Hazardous operations 2100Z to 0300Z commencing daily 16 thru 20 jul in area bound by 31-00N 170-05W, 34-45N…

HYDROPAC 1144/04

issued: 2004-07-12 10:25Z
status: cancelled 2004-07-17 20:58Z (archive)
self-cancels: 2004-07-20 04:00Z
authority: PACMISRANFAC HAWAREA 102321Z JUL 04.
sea: North Pacific Ocean
position: 36.682, -170.670
source: nga_json · first seen 2026-08-17 13:38Z

Original warning text

1. HAZARDOUS OPERATIONS 2100Z TO 0300Z COMMENCING DAILY
   16 THRU 20 JUL IN AREA BOUND BY
   31-00N 170-05W, 34-45N 165-20W,
   42-25N 171-15W, 38-30N 176-00W.
2. CANCEL THIS MSG 200400Z JUL.

Activity windows · 5 in this warning

opens (UTC)	closes (UTC)	local	length
2004-07-16 21:00Z	2004-07-17 03:00Z	—	6 h
2004-07-17 21:00Z	2004-07-18 03:00Z	—	6 h
2004-07-18 21:00Z	2004-07-19 03:00Z	—	6 h
2004-07-19 21:00Z	2004-07-20 03:00Z	—	6 h
2004-07-20 21:00Z	2004-07-21 03:00Z	—	6 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

1 within 180 nm since 2004 · 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 HYDROPAC 1144/04 and this msgcancelled by · 2004-07-17

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.