Exercises
Hazardous operations 240500Z to 282000Z may in area within three miles of 20-57.35S 040-48.82W
Western South Atlantic · Brazil-southeast Coast · HYDROLANT 1355/21
- issued
- 2021-05-19 12:08Z
- status
- cancelled 2021-05-28 21:00Z (archive)
- self-cancels
- 2021-05-28 21:00Z
- authority
- NAVAREA V COASTAL E 379/21 191100Z MAY 21.
- sea
- South Atlantic Ocean
- position
- -20.956, -40.814 · r 3.0 nm
- source
- nga_json · first seen 2026-08-17 13:38Z
Original warning text
WESTERN SOUTH ATLANTIC. BRAZIL-SOUTHEAST COAST. DNC 01. 1. HAZARDOUS OPERATIONS 240500Z TO 282000Z MAY IN AREA WITHIN THREE MILES OF 20-57.35S 040-48.82W. 2. CANCEL THIS MSG 282100Z MAY 21.
Activity windows · 1 in this warning
| opens (UTC) | closes (UTC) | local | length |
|---|---|---|---|
| 2021-05-24 05:00Z | 2021-05-28 20:00Z | — | 111 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
241 within 180 nm since 2005 · 0 in the last 12 months · 0 in force now
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24
- Hazardous operations 181300Z to 181900Z mar in area within three miles of 23-02.00S 043-03.00W2024-03-13
- Hazardous operations 280900Z to 281500Z feb in area within 20 miles of 23-45.00S 041-45.00W2024-02-23
- Hazardous operations 270900Z to 271500Z feb in area within 20 miles of 23-45.00S 041-45.00W2024-02-22
- Hazardous operations 090001Z to 092359Z feb in area bound by 23-34.00S 041-58.50W, 23-22.60S 041-52.60W,…2024-02-08
- Hazardous operations 060001Z to 070001Z feb in area bound by 23-34.00S 041-58.50W, 23-22.60S 041-52.60W,…2024-02-01
- Hazardous operations 25 nov thru 24 feb 24 in area bound by 23-11.38S 042-30.07W, 23-30.03S 042-30.03W,…2023-11-21
Season · when military exercises happen here
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A
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month of issue, all years in the archive
Nearby now · within 120 nm
- Barra de itabapoana light 21-18.80S 040-57.90W unlit until 08 sep 26Nav aids · 23.1 nm
- Odas buoy temporarily established until 13 apr 27 in 21-34.20S 040-43.62WNav aids · 37.2 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 · 49.3 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 · 49.6 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 · 49.9 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 · 50.4 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 · 50.7 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 · 51.7 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 · 52.3 nm
- Survey operations in progress until 312200Z aug in area bound by 21-36.17S 041-00.00W, 21-36.05S 040-37.59W,…Surveys · 52.9 nm
- Underwater operations 281000Z jul to 192100Z aug by M/V umi polaris in area bound by 21-53.65S 040-49.70W,…Surveys · 57.5 nm
- Underwater operations in progress until 312300Z aug by M/V fugro vaquita in area bound by 21-35.43S…Surveys · 60.4 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.