Exercises
Hazardous operations 181300Z to 182300Z aug in area bound by 20-16.90S 040-16.35W, 20-18.80S 040-15.37W,…
Western South Atlantic · Brazil-southeast Coast · HYDROLANT 2631/18
- issued
- 2018-08-17 07:43Z
- status
- cancelled 2018-08-18 23:59Z (archive)
- self-cancels
- 2018-08-18 23:59Z
- authority
- NAVAREA V COASTAL E 622/18 170226Z AUG 18.
- sea
- South Atlantic Ocean
- position
- -20.427, -40.311
- source
- nga_json · first seen 2026-08-17 13:38Z
Original warning text
WESTERN SOUTH ATLANTIC. BRAZIL-SOUTHEAST COAST. DNC 01. 1. HAZARDOUS OPERATIONS 181300Z TO 182300Z AUG IN AREA BOUND BY 20-16.90S 040-16.35W, 20-18.80S 040-15.37W, 20-23.18S 040-16.30W, 20-28.85S 040-19.10W, 20-34.18S 040-21.75W, 20-37.30S 040-23.72W. 2. CANCEL THIS MSG 182359Z AUG 18.
Activity windows · 1 in this warning
| opens (UTC) | closes (UTC) | local | length |
|---|---|---|---|
| 2018-08-18 13:00Z | 2018-08-18 23:00Z | — | 10 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
107 within 180 nm since 2003 · 0 in the last 12 months · 0 in force now
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- 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 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
- Hazardous operations 070900Z to 092100Z nov in area within ten miles of 20-32.99S 039-25.00W2022-11-02
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 1100Z to 2100Z daily 15 thru 29 aug by M/V comando b and M/V rosco banyan in 20-23.37S…Surveys · 7.8 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 · 8.6 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 · 8.8 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 · 9.4 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 · 9.4 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 · 10.2 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 · 10.8 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 · 37.1 nm
- Barra de itabapoana light 21-18.80S 040-57.90W unlit until 08 sep 26Nav aids · 64.6 nm
- Odas buoy temporarily established until 13 apr 27 in 21-34.20S 040-43.62WNav aids · 72.5 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 · 89.2 nm
- Underwater operations 281000Z jul to 192100Z aug by M/V umi polaris in area bound by 21-53.65S 040-49.70W,…Surveys · 92.6 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.