Exercises
Hazardous operations 090300Z to 132000Z nov in areas: a. bound by 21-09.7S 040-54.5W, 20-51.5S 040-46.5W,…
Western South Atlantic · Brazil-southeast Coast · HYDROLANT 3427/18
- issued
- 2018-11-04 06:43Z
- status
- cancelled 2018-11-13 21:00Z (archive)
- self-cancels
- 2018-11-13 21:00Z
- authority
- NAVAREA V COASTAL E 815/18 031649Z NOV 18.
- sea
- South Atlantic Ocean
- position
- -20.942, -40.845
- source
- nga_json · first seen 2026-08-17 13:38Z
Original warning text
WESTERN SOUTH ATLANTIC.
BRAZIL-SOUTHEAST COAST.
DNC 01.
1. HAZARDOUS OPERATIONS 090300Z TO 132000Z NOV
IN AREAS:
A. BOUND BY 21-09.7S 040-54.5W,
20-51.5S 040-46.5W, 20-48.0S 040-39.5W,
20-50.6S 040-33.5W, 21-13.5S 040-45.3W.
B. WITHIN 13 MILES OF 20-55.7S 040-51.7W
BETWEEN 060 DEGREES AND 185 DEGREES.
2. CANCEL THIS MSG 132100Z NOV 18.
Activity windows · 1 in this warning
| opens (UTC) | closes (UTC) | local | length |
|---|---|---|---|
| 2018-11-09 03:00Z | 2018-11-13 20:00Z | — | 113 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
05
10
15
20
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
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
- Barra de itabapoana light 21-18.80S 040-57.90W unlit until 08 sep 26Nav aids · 23.3 nm
- Odas buoy temporarily established until 13 apr 27 in 21-34.20S 040-43.62WNav aids · 38.3 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 · 50 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 · 50.4 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 · 50.7 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 · 51.2 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 · 51.5 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 · 52.5 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 · 53.1 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 · 53.8 nm
- Underwater operations 281000Z jul to 192100Z aug by M/V umi polaris in area bound by 21-53.65S 040-49.70W,…Surveys · 58.4 nm
- Underwater operations in progress until 312300Z aug by M/V fugro vaquita in area bound by 21-35.43S…Surveys · 61.2 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.