Exercises

Hazardous operations 030001Z to 030200Z aug in area bound by 18-19.98N 106-02.32E, 18-17.38N 106-05.08E,…

Gulf of Tonkin · Vietnam · HYDROPAC 2794/18

issued
2018-08-01 06:54Z
status
cancelled 2018-08-03 03:00Z (archive)
self-cancels
2018-08-03 03:00Z
authority
HAIPHONG RADIO 010400Z AUG 18.
sea
South China Sea
position
18.407, 106.174
source
nga_json · first seen 2026-08-17 13:38Z

Original warning text

GULF OF TONKIN.
VIETNAM.
DNC 23.
1. HAZARDOUS OPERATIONS 030001Z TO 030200Z AUG
   IN AREA BOUND BY
   18-19.98N 106-02.32E, 18-17.38N 106-05.08E,
   18-24.48N 106-20.23E, 18-32.35N 106-09.98E.
2. CANCEL THIS MSG 030300Z AUG 18.

Activity windows · 1 in this warning

opens (UTC)closes (UTC)locallength
2018-08-03 00:01Z2018-08-03 02:00Z1 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

32 within 180 nm since 2014 · 0 in the last 12 months · 0 in force now

14
15
19

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

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.