Exercises
Hazardous operations
Brazil-east Coast · HYDROLANT 631/11
- issued
- 2011-04-15 22:14Z
- status
- cancelled 2011-04-22 01:01Z (archive)
- self-cancels
- 2011-04-22 01:01Z
- authority
- NAVAREA V E 323/11 151113Z APR 11.
- sea
- South Atlantic Ocean
- position
- -20.608, -38.880
- source
- nga_json · first seen 2026-08-17 13:38Z
Original warning text
BRAZIL-EAST COAST. HAZARDOUS OPERATIONS. 1. HAZARDOUS OPERATIONS 210900Z TO 220001Z APR IN AREA BOUND BY 19-33.5S 038-58.5W, 20-10.0S 037-56.0W, 21-38.0S 038-46.0W, 21-05.0S 039-50.0W. 2. CANCEL THIS MSG 220101Z APR.
Activity windows · 1 in this warning
| opens (UTC) | closes (UTC) | local | length |
|---|---|---|---|
| 2011-04-21 09:00Z | 2011-04-22 00:01Z | — | 15 h 01 |
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
102 within 180 nm since 2003 · 0 in the last 12 months · 0 in force now
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23
- Hazardous operations 24 nov thru 08 dec in area bound by 20-50.78S 040-43.00W, 20-58.90S 040-29.12W,…2023-11-19
- Hazardous operations 281800Z sep to 010001Z oct in area bound by 21-40.75S 038-46.70W, 21-40.75S 038-03.90W,…2023-09-25
- Hazardous operations 280001Z to 280900Z sep in area bound by 20-35.00S 038-24.00W, 20-26.00S 038-36.00W,…2023-09-23
- Hazardous operations 271000Z to 272200Z sep in area bound by 19-45.00S 038-00.00W, 18-30.00S 038-00.00W,…2023-09-22
- Hazardous operations 17 thru 25 nov in area bound by 20-56.67S 040-32.52W, 20-49.42S 040-40.92W, 20-52.67S…2022-11-12
- Hazardous operations 17 thru 25 nov in area bound by 20-33.78S 040-59.10W, 20-49.15S 041-07.62W, 21-01.50S…2022-11-12
Season · when military exercises happen here
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month of issue, all years in the archive
Nearby now · within 120 nm
- Underwater operations 0800Z to 1800Z daily 02 thru 16 aug by M/V comando b and M/V royal topaz in 20-21.62S…Surveys · 72 nm
- Underwater operations in progress until 27 aug by M/V navios felix and M/V comando b in 20-22.12S 040-08.38WSurveys · 72.3 nm
- Underwater operations 0800Z to 1800Z daily 08 thru 22 aug by M/V marsanne and M/V comando b in 20-23.57S…Surveys · 72.5 nm
- Underwater operations 0800Z to 1800Z daily 11 thru 25 aug by M/V comando b and M/V faneromeni in 20-23.00S…Surveys · 72.7 nm
- Underwater operations 1100Z to 2100Z daily 12 thru 21 aug by M/V comando b and M/V faneromeni in 20-23.67S…Surveys · 73 nm
- Underwater operations 1100Z to 2100Z daily 13 thru 22 aug by M/V comando b and M/V am kirti in 20-23.90S…Surveys · 73.1 nm
- Underwater operations 1100Z to 2100Z daily 15 thru 29 aug by M/V comando b and M/V rosco banyan in 20-23.37S…Surveys · 74.2 nm
- Foul ground until 06 dec 27 in area bound by 19-53.87S 039-59.68W, 19-54.15S 039-59.27W, 19-53.08S…Wrecks · 75.6 nm
- Odas buoy temporarily established until 13 apr 27 in 21-34.20S 040-43.62WNav aids · 118.5 nm
- Survey operations in progress until 09 jul 27 by M/V bgp dragon towing 250 meter long cable in area bound by…Surveys · 118.8 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.