Exercises
Hazardous operations
Brazil-northeast Coast · HYDROLANT 412/16
- issued
- 2016-02-18 04:25Z
- status
- cancelled 2016-02-26 22:00Z (archive)
- self-cancels
- 2016-02-26 22:00Z
- authority
- NAVAREA V E 163/16 180306Z FEB 16.
- sea
- South Atlantic Ocean
- position
- -5.916, -34.297
- source
- nga_json · first seen 2026-08-17 13:38Z
Original warning text
BRAZIL-NORTHEAST COAST. HAZARDOUS OPERATIONS. DNC 01. 1. HAZARDOUS OPERATIONS 1100Z TO 2100Z DAILY 22 THRU 26 FEB IN AREA BOUND BY 05-49.50S 034-57.55W, 05-25.49S 033-53.93W, 05-47.61S 033-44.07W, 06-25.89S 034-09.36W, 06-04.75S 034-52.35W. 2. CANCEL THIS MSG 262200Z FEB 16.
Activity windows · 5 in this warning
| opens (UTC) | closes (UTC) | local | length |
|---|---|---|---|
| 2016-02-22 11:00Z | 2016-02-22 21:00Z | — | 10 h |
| 2016-02-23 11:00Z | 2016-02-23 21:00Z | — | 10 h |
| 2016-02-24 11:00Z | 2016-02-24 21:00Z | — | 10 h |
| 2016-02-25 11:00Z | 2016-02-25 21:00Z | — | 10 h |
| 2016-02-26 11:00Z | 2016-02-26 21:00Z | — | 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
377 within 180 nm since 1999 · 1 in the last 12 months · 1 in force now
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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 021500Z to 022100Z oct in area within eight miles of 06-18.00S 034-40.00W2023-09-27
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.