Exercises

Hazardous operations

Western North Pacific · Mariana Islands · HYDROPAC 1498/16

issued
2016-05-22 07:50Z
status
cancelled 2016-05-23 08:23Z (archive)
self-cancels
2016-05-26 10:00Z
authority
COMCOGARD SECTOR GUAM 352/16 220521Z MAY 16.
sea
North Pacific Ocean
position
16.018, 146.060 · r 12.0 nm
source
nga_json · first seen 2026-08-17 13:38Z

Original warning text

WESTERN NORTH PACIFIC.
MARIANA ISLANDS.
HAZARDOUS OPERATIONS.
DNC 12.
1. HAZARDOUS OPERATIONS 230100Z TO 230700Z,
   240100Z TO 240900Z, 250001Z TO 250600Z AND
   260001Z TO 260900Z MAY WITHIN 12 MILES OF
   16-01-06N 146-03-35E.
2. CANCEL THIS MSG 261000Z MAY 16.

Activity windows · 4 in this warning

opens (UTC)closes (UTC)locallength
2016-05-23 01:00Z2016-05-23 07:00Z6 h
2016-05-24 01:00Z2016-05-24 09:00Z8 h
2016-05-25 00:01Z2016-05-25 06:00Z5 h 59
2016-05-26 00:01Z2016-05-26 09:00Z8 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

1451 within 180 nm since 2002 · 3 in the last 12 months · 1 in force now

02
05
10
15
20
25
26

Season · when military exercises happen here

J
F
M
A
M
J
J
A
S
O
N
D

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.