Exercises
Hazardous operations in areas bound by: a. 250500Z to 251700Z and 252300Z to 260500Z, alternate 260500Z to…
Gulf of Tonkin · Vietnam · HYDROPAC 2044/19
- issued
- 2019-06-23 13:05Z
- status
- cancelled 2019-06-28 18:00Z (archive)
- self-cancels
- 2019-06-28 18:00Z
- authority
- MRCC VIETNAM 231235Z JUN 19.
- sea
- South China Sea
- position
- 20.692, 107.600
- source
- nga_json · first seen 2026-08-17 13:38Z
Original warning text
GULF OF TONKIN.
VIETNAM.
DNC 23.
1. HAZARDOUS OPERATIONS IN AREAS BOUND BY:
A. 250500Z TO 251700Z AND 252300Z TO 260500Z,
ALTERNATE 260500Z TO 261700Z JUN
20-52.7N 107-25.0E, 20-52.7N 107-36.4E,
20-40.1N 107-36.4E, 20-40.1N 107-25.0E.
B. 262300Z TO 271700Z, ALTERNATE
272300Z TO 281700Z JUN
20-30.0N 107-24.0E, 20-53.0N 107-24.0E,
20-53.0N 107-48.0E, 20-30.0N 107-48.0E.
2. CANCEL THIS MSG 281800Z JUN 19.
Activity windows · 5 in this warning
| opens (UTC) | closes (UTC) | local | length |
|---|---|---|---|
| 2019-06-25 05:00Z | 2019-06-25 17:00Z | — | 12 h |
| 2019-06-25 23:00Z | 2019-06-26 05:00Z | — | 6 h |
| 2019-06-26 05:00Z | 2019-06-26 17:00Z | — | 12 h |
| 2019-06-26 23:00Z | 2019-06-27 17:00Z | — | 18 h |
| 2019-06-27 23:00Z | 2019-06-28 17:00Z | — | 18 h |
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 240630Z to 240930Z, 250001Z to 250430Z, 250630Z to 250930Z and 260001Z to 260430Z sep…2019-09-22
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.