Exercises
Hazardous operations 0800Z to 1900Z daily 04 thru 08 oct in area bound by 24-00.00S 046-24.00W, 24-10.00S…
Western South Atlantic · Brazil-south Coast · HYDROLANT 2431/21
- issued
- 2021-09-29 13:37Z
- status
- cancelled 2021-10-08 20:00Z (archive)
- self-cancels
- 2021-10-08 20:00Z
- cancels
- HYDROLANT 2430/21
- authority
- NAVAREA V COASTAL S 676/21 291232Z SEP 21.
- sea
- South Atlantic Ocean
- position
- -24.099, -46.448
- source
- nga_json · first seen 2026-08-17 13:38Z
Original warning text
WESTERN SOUTH ATLANTIC. BRAZIL-SOUTH COAST. DNC 01. 1. HAZARDOUS OPERATIONS 0800Z TO 1900Z DAILY 04 THRU 08 OCT IN AREA BOUND BY 24-00.00S 046-24.00W, 24-10.00S 046-21.00W, 24-10.00S 046-32.00W, 24-03.33S 046-32.00W. 2. CANCEL HYDROLANT 2430/21(24). 3. CANCEL THIS MSG 082000Z OCT 21.
Activity windows · 5 in this warning
| opens (UTC) | closes (UTC) | local | length |
|---|---|---|---|
| 2021-10-04 08:00Z | 2021-10-04 19:00Z | — | 11 h |
| 2021-10-05 08:00Z | 2021-10-05 19:00Z | — | 11 h |
| 2021-10-06 08:00Z | 2021-10-06 19:00Z | — | 11 h |
| 2021-10-07 08:00Z | 2021-10-07 19:00Z | — | 11 h |
| 2021-10-08 08:00Z | 2021-10-08 19:00Z | — | 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
484 within 180 nm since 1999 · 1 in the last 12 months · 0 in force now
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26
- Hazardous operations 250900Z to 272100Z aug in area within seven miles of 24-26.04S 045-39.91W2026-08-20
- Hazardous operations 1100Z to 1700Z daily 21 and 22 feb in area bound by 24-15.00S 044-00.00W, 23-50.00S…2024-02-16
- Hazardous operations 1100Z to 1700Z daily 18 and 19 dec in area bound by 24-15.00S 044-00.00W, 23-50.00S…2023-12-13
- Hazardous operations in progress until 182300Z dec in area bound by 24-51.58S 043-44.93W, 24-16.70S…2023-12-06
- Hazardous operations 041200Z to 082000Z dec in area within 12 miles of 24-22.68S 045-50.95W2023-11-30
- Hazardous operations 1100Z to 2000Z daily 13 nov thru 01 dec in areas within five miles of: a. 24-00.00S…2023-11-09
Season · when military exercises happen here
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A
M
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A
S
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D
month of issue, all years in the archive
Timeline
Nearby now · within 120 nm
- Laje da conceicao light 24-14.18S 046-41.46W unlit until 24 sepNav aids · 15.7 nm
- Odas buoy established in 24-06.36S 045-38.78WNav aids · 43.9 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.