Other

Underwater ordnance detonations 220300Z to 220800Z mar within 15 miles of 26-18N 128-38E

HYDROPAC 456/00

issued
2000-03-17 07:10Z
status
cancelled 2000-03-22 09:00Z (archive)
self-cancels
2000-03-22 09:00Z
cancels
HYDROPAC 451/00
authority
EODMU FIVE DET THREE 091031Z MAR 00; HONOSARCOORD 170630Z MAR 00
sea
Philippine Sea
position
26.300, 128.633 · r 15.0 nm
source
nga_json · first seen 2026-08-17 13:38Z

Original warning text

1. UNDERWATER ORDNANCE DETONATIONS 220300Z TO 220800Z MAR
   WITHIN 15 MILES OF 26-18N 128-38E.
2. CANCEL HYDROPAC 451/00(19,97), SIGNAL CEASED.
3. CANCEL THIS MSG 220900Z MAR.

Activity windows · 1 in this warning

opens (UTC)closes (UTC)locallength
2000-03-22 03:00Z2000-03-22 08:00Z5 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

23 within 180 nm since 1999 · 0 in the last 12 months · 0 in force now

99
00
05
10

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

Timeline

Nearby now · within 120 nm

Nothing else in force 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.