Other

Navigation prohibited 042300Z to 082200Z jun in area between 20-53N 20-30N and 107-24E 107-48E

Gulf of Tonkin · Vietnam · HYDROPAC 1627/16

issued
2016-06-01 23:28Z
status
cancelled 2016-06-08 23:00Z (archive)
self-cancels
2016-06-08 23:00Z
authority
HAIPHONG RADIO 012259Z JUN 16.
source
nga_json · first seen 2026-08-17 13:38Z

Original warning text

GULF OF TONKIN.
VIETNAM.
DNC 23.
CHART 93650.
1. NAVIGATION PROHIBITED 042300Z TO 082200Z JUN
   IN AREA BETWEEN
   20-53N 20-30N AND 107-24E 107-48E.
2. CANCEL THIS MSG 082300Z JUN 16.

Activity windows · 1 in this warning

opens (UTC)closes (UTC)locallength
2016-06-04 23:00Z2016-06-08 22:00Z95 h

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

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.