Exercises

Hazardous operations 2230Z to 2359Z daily 09 thru 12 apr within 216 miles of 21-55N 153-45E

HYDROPAC 619/07

issued: 2007-04-05 21:44Z
status: cancelled 2007-04-13 01:00Z (archive)
self-cancels: 2007-04-13 01:00Z
authority: NAVAREA XI 138/07 052100Z APR 07.
sea: North Pacific Ocean
position: 21.917, 153.750 · r 216.0 nm
source: nga_json · first seen 2026-08-17 13:38Z

Original warning text

1. HAZARDOUS OPERATIONS 2230Z TO 2359Z DAILY 09 THRU 12 APR
   WITHIN 216 MILES OF 21-55N 153-45E.
2. CANCEL THIS MSG 130100Z APR.

Activity windows · 4 in this warning

opens (UTC)	closes (UTC)	local	length
2007-04-09 22:30Z	2007-04-09 23:59Z	—	1 h 29
2007-04-10 22:30Z	2007-04-10 23:59Z	—	1 h 29
2007-04-11 22:30Z	2007-04-11 23:59Z	—	1 h 29
2007-04-12 22:30Z	2007-04-12 23:59Z	—	1 h 29

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 2007 · 0 in the last 12 months · 0 in force now

Season · when military exercises happen here

month of issue, all years in the archive

Nearby now · within 120 nm

Survey operations 25 jul thru 15 aug by submersible in areas bound by: a. 22-40.00N 154-30.00E, 22-40.00N…Surveys · 69.8 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.