Other

Underwater ordnance detonations: a. 070100Z to 071000Z aug vicinity 01-18N 106-00E

HYDROPAC 737/99

issued
1999-08-06 18:41Z
status
cancelled 1999-08-08 11:00Z (archive)
self-cancels
1999-08-08 11:00Z
authority
COMSEVENTHFLT 260450Z JUL 99
sea
South China Sea
position
2.900, 106.108
source
nga_json · first seen 2026-08-17 13:38Z

Original warning text

1. UNDERWATER ORDNANCE DETONATIONS:
   A. 070100Z TO 071000Z AUG VICINITY 01-18N 106-00E.
   B. 080100Z TO 081000Z AUG VICINITY 04-30N 106-13E.
2. CANCEL THIS MSG 081100Z AUG.

Activity windows · 2 in this warning

opens (UTC)closes (UTC)locallength
1999-08-07 01:00Z1999-08-07 10:00Z9 h
1999-08-08 01:00Z1999-08-08 10:00Z9 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

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

99
00
05
10
15
20
24

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

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.