Exercises

Hazardous operations

North Pacific · Mariana Islands · HYDROPAC 92/11

issued: 2011-01-10 06:53Z
status: cancelled 2011-01-10 12:03Z (archive)
self-cancels: 2011-01-14 06:00Z
authority: USCG SECTOR GUAM 16/11 100619Z JAN 11.
sea: North Pacific Ocean
position: 16.017, 146.067 · r 10.0 nm
source: nga_json · first seen 2026-08-17 13:38Z

Original warning text

NORTH PACIFIC.
MARIANA ISLANDS.
HAZARDOUS OPERATIONS.
1. HAZARDOUS OPERATIONS 0001Z TO 0500Z DAILY
   11 THRU 14 JAN WITHIN TEN MILES OF
   16-01N 146-04E.
2. CANCEL THIS MSG 140600Z JAN.

Activity windows · 4 in this warning

opens (UTC)	closes (UTC)	local	length
2011-01-11 00:01Z	2011-01-11 05:00Z	—	4 h 59
2011-01-12 00:01Z	2011-01-12 05:00Z	—	4 h 59
2011-01-13 00:01Z	2011-01-13 05:00Z	—	4 h 59
2011-01-14 00:01Z	2011-01-14 05:00Z	—	4 h 59

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

1446 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

Timeline

Hazardous operationscancelled by · 2011-01-10

Nearby now · within 120 nm

Due to tropical storm, the following ports are closed, until further noticeOther · 59.6 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.