Exercises

Hazardous operations 141200Z to 142100Z jan, alternate 1200Z to 2100Z daily 15 jan thru 28 feb within 33…

HYDROPAC 36/04

issued: 2004-01-09 11:20Z
status: cancelled 2004-01-18 03:00Z (archive)
self-cancels: 2004-02-28 22:00Z
authority: NAVAREA XI 8/04 090805Z JAN 04
sea: Philippine Sea
position: 29.517, 133.300 · r 33.0 nm
source: nga_json · first seen 2026-08-17 13:38Z

Original warning text

1. HAZARDOUS OPERATIONS 141200Z TO 142100Z JAN,
   ALTERNATE 1200Z TO 2100Z DAILY 15 JAN THRU
   28 FEB WITHIN 33 MILES OF 29-31N 133-18E.
2. CANCEL THIS MSG 282200Z FEB.

Activity windows · 46 in this warning

opens (UTC)	closes (UTC)	local	length
2004-01-14 12:00Z	2004-01-14 21:00Z	—	9 h
2004-01-15 12:00Z	2004-01-15 21:00Z	—	9 h
2004-01-16 12:00Z	2004-01-16 21:00Z	—	9 h
2004-01-17 12:00Z	2004-01-17 21:00Z	—	9 h
2004-01-18 12:00Z	2004-01-18 21:00Z	—	9 h
2004-01-19 12:00Z	2004-01-19 21:00Z	—	9 h
2004-01-20 12:00Z	2004-01-20 21:00Z	—	9 h
2004-01-21 12:00Z	2004-01-21 21:00Z	—	9 h
… 38 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

3 within 180 nm since 2003 · 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

Cancel HYDROPAC 36/04 and this msg, operations completedcancelled by · 2004-01-18

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.