Exercises

Hazardous operations 170700Z to 170900Z, 180001Z to 180400Z and 190700Z to 190930Z jul, alternate 20 jul in…

Gulf of Tonkin · Vietnam · HYDROPAC 2607/18

issued: 2018-07-17 01:01Z
status: cancelled 2018-07-21 00:01Z (archive)
authority: HAIPHONG RADIO 170036Z JUL 18.
source: nga_json · first seen 2026-08-17 13:38Z

Original warning text

GULF OF TONKIN.
VIETNAM.
DNC 23.
1. HAZARDOUS OPERATIONS 170700Z TO 170900Z,
   180001Z TO 180400Z AND 190700Z TO 190930Z JUL,
   ALTERNATE 20 JUL IN AREA BETWEEN
   21-01.7N 21-02.5N AND 107-50.0E 107-50.5E.
2. CANCEL THIS MSG 21 JUL 18.

Activity windows · 3 in this warning

opens (UTC)	closes (UTC)	local	length
2018-07-17 07:00Z	2018-07-17 09:00Z	—	2 h
2018-07-18 00:01Z	2018-07-18 04:00Z	—	3 h 59
2018-07-19 07:00Z	2018-07-19 09:30Z	—	2 h 30

Parsed from the warning text; outside these windows the area is normally not active, but the warning stays in force until cancelled.

Nearby now · within 120 nm

Nothing else in force within 120 nm.

Worldwide now

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Exercises

Gunnery, firing and naval exercise areas. All current military exercises →

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