Exercises

Hazardous operations 2300Z to 0030Z commencing daily 14 thru 17 mar within 216 miles of 31-55N 153-45E

HYDROPAC 465/08

issued: 2008-03-11 12:35Z
status: cancelled 2008-03-15 09:36Z (archive)
self-cancels: 2008-03-18 01:30Z
authority: NAVAREA XI 100/08 11 MAR 08.
sea: North Pacific Ocean
position: 31.917, 153.750 · r 216.0 nm
source: nga_json · first seen 2026-08-17 13:38Z

Original warning text

1. HAZARDOUS OPERATIONS 2300Z TO 0030Z COMMENCING
   DAILY 14 THRU 17 MAR WITHIN
   216 MILES OF 31-55N 153-45E.
2. CANCEL THIS MSG 180130Z MAR.

Activity windows · 4 in this warning

opens (UTC)	closes (UTC)	local	length
2008-03-14 23:00Z	2008-03-15 00:30Z	—	1 h 30
2008-03-15 23:00Z	2008-03-16 00:30Z	—	1 h 30
2008-03-16 23:00Z	2008-03-17 00:30Z	—	1 h 30
2008-03-17 23:00Z	2008-03-18 00:30Z	—	1 h 30

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

30 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

Cable repair operations 18 mar thru 10 apr by M/V kdd ocean link in area bound by 16-05.3N 119-28.1E,…cancelled by · 2008-03-15

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.