Military exercises in the South Atlantic Ocean
Gunnery, firing and naval exercise areas.
- in force
- 3
- last 12 months
- 4
- vs previous 12 (1)
- +300%
- since 1999
- 1,950
Coverage note: the NGA archive ends 2024-05 and live collection began 2026-08-17. Warnings issued in between are here only if they were still in force when collection started, so 2024–2026 are under-counted.
In force now · 3
- HYDROLANT 1564/26in force2026-08-13Hazardous operations occur daily from August 18 to 20, 0800Z to 2100Z, within ten miles of 25°06'S 041°13'W.South Atlantic
- HYDROLANT 1462/26in force2026-07-29Hazardous operations are occurring off Brazil in a bounded area from August 3 through September 11.South Atlantic · Brazil
- HYDROLANT 1457/26in force2026-07-29Hazardous operations are in progress in the South Atlantic until 060400Z June 27 near 24-39S 042-30W; two-mile berth requested.South Atlantic
Longest in force
- HYDROLANT 1457/26in force2026-07-29 · 24 dHazardous operations are in progress in the South Atlantic until 060400Z June 27 near 24-39S 042-30W; two-mile berth requested.South Atlantic
- HYDROLANT 1462/26in force2026-07-29 · 24 dHazardous operations are occurring off Brazil in a bounded area from August 3 through September 11.South Atlantic · Brazil
- HYDROLANT 1564/26in force2026-08-13 · 9 dHazardous operations occur daily from August 18 to 20, 0800Z to 2100Z, within ten miles of 25°06'S 041°13'W.South Atlantic
By month (all years)
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F
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Other hazards in the South Atlantic Ocean
Archive · 1,947 cancelled
- HYDROLANT 1665/202020-05-15 → 2020-05-20Hazardous operations 201400Z to 201700Z may within six miles of 00-10.6S 047-00.0WWestern South Atlantic · Brazil-north Coast
- HYDROLANT 1664/202020-05-15 → 2020-05-19Hazardous operations 191400Z to 191700Z may in area within six miles of 00-54.3S 044-44.0WWestern South Atlantic · Brazil-north Coast
- HYDROLANT 1638/202020-05-14 → 2020-05-16Hazardous operations 171400Z to 171700Z may in area within six miles of 00-54.3S 044-44.0WWestern South Atlantic · Brazil-north Coast
- HYDROLANT 1633/202020-05-13 → 2020-05-16Hazardous operations 181400Z to 181700Z may within six miles of 00-10.6S 047-00.0WWestern South Atlantic · Brazil-north Coast
- HYDROLANT 1601/202020-05-12 → 2020-05-13Hazardous operations 161400Z to 161700Z may within six miles of 00-10.6S 047-00.0WWestern South Atlantic · Brazil-north Coast
- HYDROLANT 1597/202020-05-11 → 2020-05-14Hazardous operations 161400Z to 161700Z may in area within six miles of 00-54.3S 044-44.0WWestern South Atlantic · Brazil-north Coast
- HYDROLANT 1566/202020-05-07 → 2020-05-15Hazardous operations 0900Z to 2000Z daily 11 thru 15 may in area bound by 23-03.08S 043-58.08W, 23-03.17S…Western South Atlantic · Brazil-south Coast
- HYDROLANT 1565/202020-05-07 → 2020-05-15Hazardous operations 0900Z to 2000Z daily 11 thru 15 may in area bound by 23-09.00S 043-54.08W, 23-03.08S…Western South Atlantic · Brazil-south Coast
- HYDROLANT 1459/202020-04-29 → 2020-05-01Hazardous operations 301100Z apr to 012000Z may in area within 20 miles of 13-38S 038-16WWestern South Atlantic · Brazil-east Coast
- HYDROLANT 1420/202020-04-25 → 2020-04-30Hazardous operations 301100Z to 301900Z apr in area bound by 05-35S 035-03W, 05-45S 035-03W, 05-45S 034-55W,…Western South Atlantic · Brazil-northeast Coast
- HYDROLANT 1406/202020-04-24 → 2020-04-29Hazardous operations 291100Z to 291900Z apr in area bound by 05-35S 035-03W, 05-45S 035-03W, 05-45S 034-55W,…Western South Atlantic · Brazil-northeast Coast
- HYDROLANT 1403/202020-04-24 → 2020-04-28Hazardous operations 281100Z to 281900Z apr in area bound by 05-35S 035-03W, 05-35S 034-55W, 05-45S 034-55W,…Western South Atlantic · Brazil-northeast Coast
- HYDROLANT 1397/202020-04-22 → 2020-04-30Hazardous operations 1600Z to 1800Z daily 27 thru 30 apr in areas: a. bound by 23-02.02S 043-51.02W,…Western South Atlantic · Brazil-south Coast
- HYDROLANT 1395/202020-04-22 → 2020-04-23Hazardous operations 231500Z to 232100Z apr in area bound by 21-22.0S 040-35.3W, 21-22.0S 040-23.3W,…Western South Atlantic · Brazil-east Coast
- HYDROLANT 1109/202020-03-26 → 2020-03-27Hazardous operations 1000Z to 2100Z daily 31 mar thru 03 apr in area bound by 05-54.13S 035-10.00W,…Western South Atlantic · Brazil-northeast Coast
- HYDROLANT 1062/202020-03-21 → 2020-03-27Hazardous operations 1200Z to 1900Z daily 21 thru 27 mar in area bound by 23-13.5S 043-16.7W, 23-20.0S…Western South Atlantic · Brazil-south Coast
- HYDROLANT 1033/202020-03-19 → 2020-03-24Hazardous operations 1500Z to 2100Z daily 24 thru 26 mar in area bound by 05-56.13S 035-10.01W, 06-09.13S…Western South Atlantic · Brazil-northeast Coast
- HYDROLANT 1023/202020-03-18 → 2020-04-10Hazardous operations 0900Z to 2100Z daily 23 mar thru 10 apr in area bound by 23-27.03S 043-52.03W,…Western South Atlantic · Brazil-south Coast
- HYDROLANT 957/202020-03-13 → 2020-03-18Hazardous operations 181100Z to 181900Z mar in area within eight miles of 03-34.5S 038-03.5WWestern South Atlantic · Brazil-north Coast
- HYDROLANT 762/202020-02-29 → 2020-03-05Hazardous operations 041900Z to 051900Z mar in area within ten miles of 23-38S 042-27WWestern South Atlantic · Brazil-southeast Coast
- HYDROLANT 500/202020-02-12 → 2020-02-19Hazardous operations 1200Z to 1900Z daily 17 thru 19 feb in area within ten miles of 23-49S 043-25WWestern South Atlantic · Brazil-south Coast
- HYDROLANT 486/202020-02-11 → 2020-02-17Hazardous operations 161900Z to 171900Z feb in area within ten miles of 23-38S 042-27WWestern South Atlantic · Brazil-southeast Coast
- HYDROLANT 366/202020-02-02 → 2020-02-09Hazardous operations 071000Z to 092100Z feb in area within 20 miles of 13-38S 038-16WWestern South Atlantic · Brazil-east Coast
- HYDROLANT 298/202020-01-27 → 2020-02-01Hazardous operations 1100Z to 1700Z daily 28 jan thru 01 feb in area bound by 12-57.08S 038-30.20W,…Western South Atlantic Brazil-east Coast
- HYDROLANT 243/202020-01-24 → 2020-01-28Western south atlantic DNC 01
- HYDROLANT 233/202020-01-24 → 2020-01-29Hazardous operations 290900Z to 291700Z jan in area bound by 20-25.0S 039-33.6W, 20-38.0S 039-08.0W,…Western South Atlantic · Brazil-southeast Coast
- HYDROLANT 230/202020-01-23 → 2020-01-30Hazardous operations 0800Z to 2200Z daily 28 thru 31 jan in area bound by 24-09.0S 041-10.0W, 24-32.0S…Western South Atlantic
- HYDROLANT 225/202020-01-22 → 2020-01-23Hazardous operations 0800Z to 2200Z daily 28 thru 31 jan in area bound by 24-09.00S 041-10.00W, 24-32.00S…Western South Atlantic
- HYDROLANT 177/202020-01-17 → 2020-01-22Hazardous operations 220900Z to 221700Z jan in area bound by 11-58.0S 036-36.5W, 12-05.0S 035-56.0W,…Western South Atlantic · Brazil-east Coast
- HYDROLANT 161/202020-01-16 → 2020-01-17Hazardous operations 220900Z to 221700Z jan in area bound by 10-26S 035-25W, 10-26S 035-04W, 10-46S 035-04W,…Western South Atlantic · Brazil-east Coast
- HYDROLANT 77/202020-01-10 → 2020-01-15Hazardous operations 150900Z to 152000Z jan in area bound by 07-07S 034-37W, 07-01S 034-13W, 07-55S 034-00W,…Western South Atlantic · Brazil-northeast Coast
- HYDROLANT 43/202020-01-06 → 2020-01-12Hazardous operations 112000Z to 120600Z jan in area bound 17-47S 038-05W, 17-56S 037-45W, 18-32S 038-02W,…Western South Atlantic · Brazil-eastern Coast
- HYDROLANT 42/202020-01-05 → 2020-01-11Hazardous operations 110900Z to 111700Z jan in area bound by 19-18S 038-58W, 19-31S 038-26W, 20-01S 038-41W,…Western South Atlantic · Brazil-east Coast
- HYDROLANT 4020/192019-12-31 → 2020-01-04Hazardous operations 040800Z to 042100Z jan 20 in area bound by 24-20.0S 043-33.5W, 24-00.0S 043-33.5W,…Western South Atlantic · Brazil-south Coast
- HYDROLANT 4016/192019-12-31 → 2019-12-31Hazardous operations 040800Z to 042100Z jan 20 area bound by 24-20.0S 043-33.5W, 24-00.0S 043-33.5W,…Western South Atlantic · Brazil-south Coast
- HYDROLANT 3948/192019-12-24 → 2019-12-29Hazardous operations 290900Z to 291500Z dec in area bound by 23-10.0S 042-45.1W, 22-56.2S 042-45.1W,…Western South Atlantic · Brazil-southeast Coast
- HYDROLANT 3935/192019-12-23 → 2019-12-28Hazardous operations 280900Z to 281500Z dec in area bound by 23-10.0S 042-45.1W, 23-10.0S 042-12.5W,…Western South Atlantic · Brazil-south Coast
- HYDROLANT 3804/192019-12-12 → 2019-12-17Hazardous operations 171100Z to 172100Z dec in area bound by: 29-14.3S 049-02.8W, 30-23.7S 050-02.6W,…Western South Atlantic · Brazil-south Coast
- HYDROLANT 3742/192019-12-06 → 2019-12-11Hazardous operations 111100Z to 111500Z dec in area bound by 13-24.00S 038-36.00W, 13-14.00S 038-36.00W,…Western South Atlantic · Brazil-east Coast
- HYDROLANT 3728/192019-12-05 → 2019-12-10Hazardous operations 101300Z to 101900Z dec in area bound by 13-14S 038-36W, 13-14S 038-26W, 13-24S 038-26W,…Western South Atlantic · Brazil-east Coast
- HYDROLANT 3677/192019-11-29 → 2019-12-04Hazardous operations 041100Z to 041800Z dec in area within eight miles of 03-04S 038-33WWestern South Atlantic · Brazil-north Coast
- HYDROLANT 3662/192019-11-29 → 2019-12-04Hazardous operations 041100Z to 041500Z dec in area bound by 13-24S 038-36W, 13-14S 038-36W, 13-14S 038-26W,…Western South Atlantic · Brazil-east Coast
- HYDROLANT 3649/192019-11-28 → 2019-12-03Hazardous operations 031300Z to 031900Z dec in area bound by 13-24S 038-36W, 13-14S 038-36W, 13-14S 038-26W,…Western South Atlantic · Brazil-east Coast
- HYDROLANT 3634/192019-11-27 → 2019-12-04Hazardous operations 021000Z to 042100Z dec in area bound by 05-54.13S 035-10.00W, 05-47.04S 034-56.51W,…Western South Atlantic · Brazil-northeast Coast
- HYDROLANT 3570/192019-11-22 → 2019-11-23Hazardous operations 0800Z to 1500Z daily 22 and 23 nov in area bound by 07-25.17S 033-35.77W, 07-25.67S…Western South Atlantic · Brazil-northeast Coast
- HYDROLANT 3555/192019-11-21 → 2019-11-26Hazardous operations 260800Z to 272100Z nov in area bound by 23-36S 043-10W, 23-36S 043-26W, 23-57S 043-50W,…Western South Atlantic · Brazil-south Coast
- HYDROLANT 3517/192019-11-16 → 2019-11-22Hazardous operations 0800Z to 1500Z daily 22 and 23 nov in area bound by 07-15S 033-30W, 07-15S 033-10W,…Western South Atlantic · Brazil-northeast Coast
- HYDROLANT 3428/192019-11-07 → 2019-11-14Hazardous operations 1000Z to 2100Z daily 12 thru 14 nov in area bound by 05-54.13S 035-10.00W, 05-47.04S…Western South Atlantic · Brazil-northeast Coast
- HYDROLANT 3369/192019-11-01 → 2019-11-05Hazardous operations 04 nov in area bound by 22-20.0S 014-00.0E, 22-35.1S 014-00.0E, 22-35.1S 013-43.7E,…Eastern South Atlantic · Namibia
- HYDROLANT 3354/192019-11-01 → 2019-11-02Hazardous operations 040900Z to 081300Z nov in area bound by 24-09S 041-10W, 24-42S 039-33W, 26-14S 040-12W,…Western South Atlantic · Brazil-southeast Coast
Sea boundaries: Flanders Marine Institute (2018), IHO Sea Areas v3, marineregions.org (CC BY 4.0). Not for navigation — follow official NAVAREA / coastal broadcasts and your national MSI service.