Exercises

Hazardous operations

North Pacific · Mariana Islands · HYDROPAC 2841/11

issued
2011-10-10 18:52Z
status
cancelled 2011-10-16 13:18Z (archive)
self-cancels
2011-10-22 00:01Z
cancels
HYDROPAC 2831/11
authority
COMCOGARD SECTOR GUAM 543/11 092105Z OCT 11 - SHGA 10 OCT 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 0200Z TO 2200Z
   COMMENCING DAILY 11 THRU 14 OCT AND
   2200Z TO 2300Z DAILY 16 THRU 21 OCT
   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 HYDROPAC 2831/11.
3. CANCEL THIS MSG 220001Z OCT.

Activity windows · 10 in this warning

opens (UTC)closes (UTC)locallength
2011-10-11 02:00Z2011-10-11 22:00Z20 h
2011-10-12 02:00Z2011-10-12 22:00Z20 h
2011-10-13 02:00Z2011-10-13 22:00Z20 h
2011-10-14 02:00Z2011-10-14 22:00Z20 h
2011-10-16 22:00Z2011-10-16 23:00Z1 h
2011-10-17 22:00Z2011-10-17 23:00Z1 h
2011-10-18 22:00Z2011-10-18 23:00Z1 h
2011-10-19 22:00Z2011-10-19 23:00Z1 h
2 more

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

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26

Season · when military exercises happen here

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M
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month of issue, all years in the archive

Timeline

Nearby now · 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.