Exercises
Hazardous operations 240630Z to 240930Z, 250001Z to 250430Z, 250630Z to 250930Z and 260001Z to 260430Z sep…
Gulf of Tonkin · Vietnam · HYDROPAC 3115/19
- issued
- 2019-09-22 13:00Z
- status
- cancelled 2019-09-26 05:30Z (archive)
- self-cancels
- 2019-09-26 05:30Z
- authority
- HAIPHONG RADIO 221246Z SEP 19.
- sea
- South China Sea
- position
- 20.911, 107.145
- source
- nga_json · first seen 2026-08-17 13:38Z
Original warning text
GULF OF TONKIN. VIETNAM. DNC 23. 1. HAZARDOUS OPERATIONS 240630Z TO 240930Z, 250001Z TO 250430Z, 250630Z TO 250930Z AND 260001Z TO 260430Z SEP IN AREA BOUND BY 20-55.00N 107-07.91E, 20-55.00N 107-09.50E, 20-54.30N 107-09.50E, 20-54.30N 107-07.91E. 2. CANCEL THIS MSG 260530Z SEP 19.
Activity windows · 4 in this warning
| opens (UTC) | closes (UTC) | local | length |
|---|---|---|---|
| 2019-09-24 06:30Z | 2019-09-24 09:30Z | — | 3 h |
| 2019-09-25 00:01Z | 2019-09-25 04:30Z | — | 4 h 29 |
| 2019-09-25 06:30Z | 2019-09-25 09:30Z | — | 3 h |
| 2019-09-26 00:01Z | 2019-09-26 04:30Z | — | 4 h 29 |
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
27 within 180 nm since 2014 · 0 in the last 12 months · 0 in force now
14
15
19
- Hazardous operations 200500Z to 200930Z dec, alternate 210500Z to 210930Z dec in area bound by 19-12.11N…2019-12-18
- Hazardous operations 232300Z to 240400Z oct in area bound by 18-47.81N 105-57.80E, 18-47.95N 106-02.10E,…2019-10-23
- Hazardous operations 212300Z to 221700Z oct, alternate 0500Z to 1700Z daily 23 and 24 oct in area bound by…2019-10-20
- Hazardous operations in areas bound by: a. 220001Z to 220300Z, 0001Z to 0300Z daily 23 and 24 oct 20-42.6N…2019-10-20
- Hazardous operations 260100Z to 260400Z sep, alternate 270100Z to 270400Z sep in area bound by 20-49.1N…2019-09-24
- Hazardous operations in areas bound by: a. 250500Z to 251700Z and 252300Z to 260500Z, alternate 260500Z to…2019-06-23
Season · when military exercises happen here
J
F
M
A
M
J
J
A
S
O
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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.