Exercises
Hazardous operations
Brazil-southeast Coast · HYDROLANT 738/16
- issued
- 2016-03-27 23:35Z
- status
- cancelled 2016-03-28 23:00Z (archive)
- self-cancels
- 2016-03-28 23:00Z
- cancels
- HYDROLANT 712/16
- authority
- NAVAREA V S 274/16 272216Z MAR 16.
- sea
- South Atlantic Ocean
- position
- -23.381, -42.512
- source
- nga_json · first seen 2026-08-17 13:38Z
Original warning text
BRAZIL-SOUTHEAST COAST. HAZARDOUS OPERATIONS. DNC 01. 1. HAZARDOUS OPERATIONS 281500Z TO 282200Z MAR IN AREA BOUND BY 23-20.5S 042-45.5W, 23-08.5S 042-28.5W, 23-25.5S 042-16.0W, 23-37.0S 042-33.0W. 2. CANCEL HYDROLANT 712/16. 3. CANCEL THIS MSG 282300Z MAR 16.
Activity windows · 1 in this warning
| opens (UTC) | closes (UTC) | local | length |
|---|---|---|---|
| 2016-03-28 15:00Z | 2016-03-28 22:00Z | — | 7 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
667 within 180 nm since 1999 · 2 in the last 12 months · 2 in force now
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05
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25
26
- Hazardous operations 0800Z to 2100Z daily 18 thru 20 aug in area within ten miles of 25-06.00S 041-13.00W2026-08-13
- Hazardous operations in progress until 060400Z jun 27 in area bound by 24-39.87S 042-29.30W, 24-39.78S…2026-07-29
- Hazardous operations 220000Z to 252359Z apr in area bound by 23-23.00S 042-15.00W, 23-23.00S 042-45.00W,…2024-04-19
- Hazardous operations 241400Z to 242100Z mar in area bound by 23-40.00S 041-50.00W, 23-40.00S 042-21.00W,…2024-03-19
- Hazardous operations 181300Z to 181900Z mar in area within three miles of 23-02.00S 043-03.00W2024-03-13
- Hazardous operations 132200Z to 140400Z mar in area bound by 23-40.00S 041-50.00W, 23-40.00S 042-21.00W,…2024-03-12
Season · when military exercises happen here
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F
M
A
M
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J
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S
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month of issue, all years in the archive
Timeline
- Hazardous operationscancels · 2016-03-24
- Hazardous operationsreplaced · 2016-03-24
Nearby now · within 120 nm
- Hazardous operations in progress until 060400Z jun 27 in area bound by 24-39.87S 042-29.30W, 24-39.78S…Exercises · 76.2 nm
- Survey operations 10 aug 26 thru 08 mar 27 by tug mce navegacao I in area bound by 22-48.38S 041-08.21W,…Surveys · 85.6 nm
- Ponta dos meros light 23-13.57S 044-20.83W unlit until 26 sepNav aids · 101.6 nm
- RACON at cabo sao tome light 22-02.52S 041-03.17W off air until 28 sepNav aids · 114 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.