Other

Underwater ordnance detonation 162200Z to 170300Z mar in area within three miles of 13-35.00N 144-55.00E

Western North Pacific · Guam · HYDROPAC 868/23

issued
2023-03-16 09:11Z
status
cancelled 2023-03-17 04:00Z (archive)
self-cancels
2023-03-17 04:00Z
authority
COMCOGARD FORCES MICRONESIA SECTOR GUAM 101/23 160600Z MAR 23.
sea
North Pacific Ocean
position
13.583, 144.917 · r 3.0 nm
source
nga_json · first seen 2026-08-17 13:38Z

Original warning text

WESTERN NORTH PACIFIC.
GUAM.
DNC 12.
1. UNDERWATER ORDNANCE DETONATION
   162200Z TO 170300Z MAR IN AREA WITHIN
   THREE MILES OF 13-35.00N 144-55.00E.
2. CANCEL THIS MSG 170400Z MAR 23.

Activity windows · 1 in this warning

opens (UTC)closes (UTC)locallength
2023-03-16 22:00Z2023-03-17 03:00Z5 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 · other warnings

132 within 180 nm since 1999 · 1 in the last 12 months · 1 in force now

99
00
05
10
15
20
25
26

Season · when other warnings happen here

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

month of issue, all years in the archive

Nearby now · within 120 nm

Worldwide now

34 other warnings in force · see all

Other

Everything the classifier did not place elsewhere. All current other warnings

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.