Exercises
Hazardous operations
Brazil-southeast Coast · HYDROLANT 647/11
- issued
- 2011-04-18 06:24Z
- status
- cancelled 2011-04-23 20:00Z (archive)
- self-cancels
- 2011-04-23 20:00Z
- authority
- NAVAREA V 218/11 18 APR 11.
- sea
- South Atlantic Ocean
- position
- -23.203, -38.495
- source
- nga_json · first seen 2026-08-17 13:38Z
Original warning text
BRAZIL-SOUTHEAST COAST. HAZARDOUS OPERATIONS. 1. HAZARDOUS OPERATIONS 230400Z TO 231900Z APR IN AREA BOUND BY 22-31S 037-58W, 23-29S 037-39W, 23-53S 039-01W, 22-56S 039-21W. 2. CANCEL THIS MSG 232000Z APR.
Activity windows · 1 in this warning
| opens (UTC) | closes (UTC) | local | length |
|---|---|---|---|
| 2011-04-23 04:00Z | 2011-04-23 19:00Z | — | 15 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
139 within 180 nm since 2005 · 0 in the last 12 months · 0 in force now
05
10
15
20
24
- Hazardous operations 190800Z to 232200Z feb in area bound by 24-20.00S 040-32.00W, 24-30.00S 040-03.00W,…2024-02-14
- Hazardous operations 0800Z to 2200Z daily 08 thru 12 jan in area bound by 24-30.00S 040-03.00W, 24-20.00S…2024-01-04
- 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 0800Z to 2200Z daily 15 thru 19 may in area bound by 24-30.00S 040-03.00W, 24-20.00S…2023-05-10
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
- Underwater operations in progress until 140001Z nov by M/V fugro vaquita in area bound by 22-03.00S…Surveys · 73.6 nm
- Survey operations in progress until 09 jul 27 by M/V bgp dragon towing 250 meter long cable in area bound by…Surveys · 101.5 nm
- Underwater operations 1000Z to 2000Z daily until 02 nov 26 by M/V fugro vaquita in: a. 22-26.32S 040-25.47WSurveys · 115.7 nm
- Underwater operations in progress until 170259Z aug in 22-22.48S 040-25.05WSurveys · 117.5 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.