Exercises
Hazardous operations
Brazil-north Coast · HYDROLANT 661/13
- issued
- 2013-03-16 01:01Z
- status
- cancelled 2013-03-21 19:00Z (archive)
- self-cancels
- 2013-03-21 19:00Z
- authority
- NAVAREA V N 325/13 160043Z MAR 13.
- sea
- South Atlantic Ocean
- position
- -4.392, -37.167 · r 5.0 nm
- source
- nga_json · first seen 2026-08-17 13:38Z
Original warning text
BRAZIL-NORTH COAST. HAZARDOUS OPERATIONS. 1. HAZARDOUS OPERATIONS 211100Z TO 211800Z MAR WITHIN FIVE MILES OF 04-23.5S 037-10.0W. 2. CANCEL THIS MSG 211900Z MAR 13.
Activity windows · 1 in this warning
| opens (UTC) | closes (UTC) | local | length |
|---|---|---|---|
| 2013-03-21 11:00Z | 2013-03-21 18:00Z | — | 7 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
303 within 180 nm since 1999 · 1 in the last 12 months · 1 in force now
99
00
05
10
15
20
25
26
- Hazardous operations 03 aug thru 11 sep in area bound by 05-42.53S 034-45.02W, 06-09.83S 034-46.82W,…2026-07-29
- Hazardous operations 261300Z to 261900Z feb in area within ten miles of 05-40.00S 034-57.00W2024-02-22
- Hazardous operations 221300Z to 221900Z feb in area within five miles of 05-42.00S 035-01.00W2024-02-19
- Hazardous operations daily 1100Z to 2000Z 06 thru 08 dec in area bound by 05-51.89S 034-54.35W, 05-47.04S…2023-12-01
- Hazardous operations 051100Z to 051500Z dec in area within ten miles of 05-39.00S 034-52.00W2023-12-01
- Hazardous operations 291000Z to 291600Z sep in area within ten miles of 05-31.00S 034-53.00W2023-09-24
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
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.