Exercises
Hazardous operations 140130Z to 140630Z nov, alternate 150130Z to 150630Z nov in area between 20-48.0N…
Gulf of Tonkin · Vietnam · HYDROPAC 3914/17
- issued
- 2017-11-12 12:46Z
- status
- cancelled 2017-11-15 07:30Z (archive)
- self-cancels
- 2017-11-15 07:30Z
- authority
- HAIPHONG RADIO 121231Z NOV 17.
- source
- nga_json · first seen 2026-08-17 13:38Z
Original warning text
GULF OF TONKIN. VIETNAM. DNC 23. 1. HAZARDOUS OPERATIONS 140130Z TO 140630Z NOV, ALTERNATE 150130Z TO 150630Z NOV IN AREA BETWEEN 20-48.0N 20-44.0N AND 107-26.5E 107-31.0E. 2. CANCEL THIS MSG 150730Z NOV 17.
Activity windows · 2 in this warning
| opens (UTC) | closes (UTC) | local | length |
|---|---|---|---|
| 2017-11-14 01:30Z | 2017-11-14 06:30Z | — | 5 h |
| 2017-11-15 01:30Z | 2017-11-15 06:30Z | — | 5 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
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.