Exercises
Hazardous operations 1000Z to 2100Z daily 27 sep thru 01 oct in area bound by 05-54.12S 035-09.96W,…
Western South Atlantic · Brazil-northeast Coast · HYDROLANT 2975/17
- issued
- 2017-09-22 17:19Z
- status
- cancelled 2017-10-01 22:00Z (archive)
- self-cancels
- 2017-10-01 22:00Z
- cancels
- HYDROLANT 2957/17
- authority
- NAVAREA V COASTAL E 772/17 221719Z SEP 17.
- sea
- South Atlantic Ocean
- position
- -5.920, -35.117
- source
- nga_json · first seen 2026-08-17 13:38Z
Original warning text
WESTERN SOUTH ATLANTIC. BRAZIL-NORTHEAST COAST. DNC 01. 1. HAZARDOUS OPERATIONS 1000Z TO 2100Z DAILY 27 SEP THRU 01 OCT IN AREA BOUND BY 05-54.12S 035-09.96W, 05-51.02S 035-05.07W, 05-59.35S 035-05.01W, 05-56.13S 035-10.01W. 2. CANCEL HYDROLANT 2957/17. 3. CANCEL THIS MSG 012200Z OCT 17.
Activity windows · 5 in this warning
| opens (UTC) | closes (UTC) | local | length |
|---|---|---|---|
| 2017-09-27 10:00Z | 2017-09-27 21:00Z | — | 11 h |
| 2017-09-28 10:00Z | 2017-09-28 21:00Z | — | 11 h |
| 2017-09-29 10:00Z | 2017-09-29 21:00Z | — | 11 h |
| 2017-09-30 10:00Z | 2017-09-30 21:00Z | — | 11 h |
| 2017-10-01 10:00Z | 2017-10-01 21:00Z | — | 11 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
381 within 180 nm since 1999 · 1 in the last 12 months · 1 in force now
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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
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M
A
M
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J
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month of issue, all years in the archive
Timeline
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.