Exercises

Hazardous operations

North Pacific · Mariana Islands · HYDROPAC 3500/11

issued: 2011-12-15 08:27Z
status: cancelled 2011-12-16 08:30Z (archive)
self-cancels: 2011-12-16 08:30Z
authority: COMCOGARD SECTOR GUAM 677/11 150612Z DEC 11.
sea: North Pacific Ocean
position: 11.743, 144.013
source: nga_json · first seen 2026-08-17 13:38Z

Original warning text

NORTH PACIFIC.
MARIANA ISLANDS.
HAZARDOUS OPERATIONS.
1. HAZARDOUS OPERATIONS 152330Z TO 160730Z DEC
   IN AREA BOUND BY
   13-10N 144-43E, 13-10N 144-30E,
   12-45N 144-30E, 11-45N 143-00E,
   11-00N 143-00E, 11-00N 144-45E.
2. CANCEL THIS MSG 160830Z DEC.

Activity windows · 1 in this warning

opens (UTC)	closes (UTC)	local	length
2011-12-15 23:30Z	2011-12-16 07:30Z	—	8 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

902 within 180 nm since 2002 · 3 in the last 12 months · 1 in force now

Season · when military exercises happen here

month of issue, all years in the archive

Nearby now · within 120 nm

Uscg remote communication facility guam 13-29.00N 144-50.00E hf capabilities unreliableNav aids · 115 nm
Uscg remote communication facility guam 13-29.00N 144-50.00E broadcast and communication services unreliableNav aids · 115 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.