Exercises
Hazardous operations
Brazil-south Coast · HYDROLANT 490/11
- issued
- 2011-03-24 14:49Z
- status
- cancelled 2011-03-30 01:12Z (archive)
- self-cancels
- 2011-03-30 20:00Z
- cancels
- HYDROLANT 246/11
- authority
- NAVAREA V S 218/11 231921Z MAR 11 - NAVAREA V S 226/11 231921Z MAR 11.
- sea
- South Atlantic Ocean
- position
- -32.194, -52.124
- source
- nga_json · first seen 2026-08-17 13:38Z
Original warning text
BRAZIL-SOUTH COAST. HAZARDOUS OPERATIONS. 1. HAZARDOUS OPERATIONS 280900Z TO 301900Z MAR IN AREA BOUND BY 32-12.76S 052-08.70W, 32-12.10S 052-09.19W, 32-10.53S 052-06.17W, 32-11.20S 052-05.65W. 2. CANCEL HYDROLANT 246/11. 3. CANCEL THIS MSG 302000Z MAR.
Activity windows · 1 in this warning
| opens (UTC) | closes (UTC) | local | length |
|---|---|---|---|
| 2011-03-28 09:00Z | 2011-03-30 19:00Z | — | 58 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
116 within 180 nm since 2003 · 0 in the last 12 months · 0 in force now
03
05
10
15
20
23
- Hazardous operations 290300Z to 292100Z sep in area bound by 32-22.40S 052-12.40W, 32-30.40S 052-14.10W,…2023-09-24
- Hazardous operations 220900Z to 250400Z aug in area bound by 31-28.42S 049-14.03W, 31-13.60S 049-44.45W,…2023-08-17
- Hazardous operations 110900Z to 120400Z in area bound by 31-28.42S 049-14.02W, 31-13.60S 049-44.45W,…2023-08-06
- Hazardous operations 0900Z to 2130Z daily 31 jul thru 18 aug in area bound by 29-20.53S 049-05.53W,…2023-07-26
- Hazardous operations 290300Z to 291600Z jun in area bound by 32-24.20S 052-04.30W, 32-22.40S 052-14.10W,…2023-06-24
- Hazardous operations 290300Z to 292300Z mar in area bound by 32-24.20S 052-04.30W, 32-22.40S 052-12.40W,…2023-03-25
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
Timeline
- Nga chart 24140 (18TH ed)cancels · 2011-02-10
- Nga chart 24140 (18TH ed)replaced · 2011-02-10
- Hazardous operationscancelled by · 2011-03-30
Nearby now · within 120 nm
- Odas buoy temporarily established in 32-14.29S 051-58.16WNav aids · 8.3 nm
- Odas buoy temporarily established in 32-32.46S 052-06.03W until 31 dec 27Nav aids · 20.9 nm
- Radiobeacon at chui light 33-44.6S 053-22.5W off air until 17 jan 27Nav aids · 112.4 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.