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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Other hazards in the South Atlantic Ocean
Archive · 1,947 cancelled
- HYDROLANT 3245/192019-10-23 → 2019-10-30Hazardous operations 281300Z to 300300Z oct in area bound by 23-35.0S 042-12.5W, 23-35.0S 041-40.0W,…Western South Atlantic · Brazil-southeast Coast
- HYDROLANT 3182/192019-10-18 → 2019-10-24Hazardous operations 231000Z to 242100Z oct in area within eight miles of 05-00S 034-30WWestern South Atlantic · Brazil-northeast Coast
- HYDROLANT 3167/192019-10-17 → 2019-10-22Hazardous operations 221000Z to 222100Z oct in area within 20 miles of 13-38S 038-16WWestern South Atlantic · Brazil-east Coast
- HYDROLANT 3087/192019-10-11 → 2019-10-16Hazardous operations 161000Z to 162100Z oct in area within 20 miles of 13-38S 038-16WWestern South Atlantic · Brazil-east Coast
- HYDROLANT 3059/192019-10-08 → 2019-10-11Hazardous operations 141500Z to 142100Z oct in area within eight miles of 05-00S 034-30WWestern South Atlantic · Brazil-northeast Coast
- HYDROLANT 3025/192019-10-04 → 2019-10-13Hazardous operations 0001Z to 2359Z daily 09 thru 12 oct in areas within two miles of: a. 22-56.36S 043-50.91WWestern South Atlantic · Brazil-south Coast
- HYDROLANT 3021/192019-10-04 → 2019-10-11Hazardous operations 071100Z to 112100Z oct in area bound by 02-18.93S 044-22.02W, 02-13.79S 044-22.07W,…Western North Atlantic · Brazil-north Coast
- HYDROLANT 2877/192019-09-20 → 2019-09-26Hazardous operations 1100Z to 1900Z daily 24 thru 26 sep in areas bound by: a. 08-33.0S 034-41.0W, 08-33.0S…Western South Atlantic · Brazil-northeast Coast
- HYDROLANT 2867/192019-09-19 → 2019-09-28Hazardous operations 1100Z to 2100Z daily 23 thru 28 sep in area bound by 02-17.71S 044-15.60W, 01-32.61S…Western South Atlantic · Brazil-north Coast
- HYDROLANT 2866/192019-09-19 → 2019-09-19Hazardous operations 231100Z thru 282100Z sep in area bound by 02-17.71S 044-15.60W, 01-32.61S 044-06.92W,…Western South Atlantic · Brazil-north Coast
- HYDROLANT 2862/192019-09-19 → 2019-09-27Hazardous operations 1500Z to 2100Z daily 24 thru 27 sep in area bound by 05-56.13S 035-10.01W, 06-09.13S…Western South Atlantic · Brazil-northeast Coast
- HYDROLANT 2802/192019-09-13 → 2019-09-17Hazardous operations 160800Z to 170001Z sep in area bound by 08-38.20S 035-04.50W, 08-38.20S 034-53.00W,…Western South Atlantic · Brazil-northeast Coast
- HYDROLANT 2765/192019-09-11 → 2019-09-12Hazardous operations 121100Z to 122000Z sep in area bound by 21-53.72S 040-55.90W, 21-53.50S 040-55.90W,…Western South Atlantic · Brazil-southeast Coast
- HYDROLANT 2730/192019-09-07 → 2019-09-08Hazardous operations 081100Z to 082000Z sep along trackline joining 21-53.72S 040-55.90W, 21-53.50S 040-55.70WWestern South Atlantic · Brazil-southeast Coast
- HYDROLANT 2722/192019-09-06 → 2019-09-11Hazardous operations 111000Z to 111500Z sep in area bound by 05-35S 035-03W, 05-35S 034-55W, 05-45S 034-55W,…Western South Atlantic · Brazil-northeast Coast
- HYDROLANT 2701/192019-09-04 → 2019-09-30Hazardous operations 0530Z to 1800Z daily 09 thru 30 sep in area bound by 29-20.53S 049-05.53W, 29-27.03S…Western South Atlantic · Brazil-south Coast
- HYDROLANT 2588/192019-08-24 → 2019-08-30Hazardous operations 301100Z to 302000Z aug in area bound by 32-16S 052-07W, 32-23S 051-56W, 32-31S 052-03W,…Western South Atlantic · Brazil-south Coast
- HYDROLANT 2549/192019-08-21 → 2019-08-26Hazardous operations 261100Z to 262000Z aug in area bound by 32-16S 052-07W, 32-23S 051-56W, 32-31S 052-03W,…Western South Atlantic · Brazil-south Coast
- HYDROLANT 2532/192019-08-20 → 2019-08-27Hazardous operations 251800Z to 270200Z aug in area bound by 23-20S 044-20W, 23-20S 044-00W, 23-15S 044-00W,…Western South Atlantic · Brazil-south Coast
- HYDROLANT 2531/192019-08-20 → 2019-08-25Hazardous operations 251000Z to 251600Z aug in area bound by 24-00.00S 044-05.50W, 23-40.00S 044-05.50W,…Western South Atlantic · Brazil-south Coast
- HYDROLANT 2519/192019-08-19 → 2019-08-25Hazardous operations 242000Z to 250200Z aug in area bound by 24-22.00S 044-07.00W, 24-07.00S 043-53.00W,…Western South Atlantic · Brazil-south Coast
- HYDROLANT 2518/192019-08-19 → 2019-08-24Hazardous operations 241400Z to 242000Z aug in area bound by 24-00.00S 043-32.50W, 24-00.00S 043-21.50W,…Western South Atlantic · Brazil-south Coast
- HYDROLANT 2514/192019-08-18 → 2019-08-23Hazardous operations 231000Z to 231600Z aug area bound by 23-17.0S 043-22.4W, 23-02.0S 043-22.4W, 23-02.0S…Western South Atlantic · Brazil
- HYDROLANT 2418/192019-08-08 → 2019-08-13Hazardous operations 131100Z to 132100Z aug in area bound by 24-06.0S 045-27.0W, 24-01.0S 045-35.0W,…Western South Atlantic · Brazil-south Coast
- HYDROLANT 2417/192019-08-08 → 2019-08-20Hazardous operations 1500Z to 2100Z daily 13 thru 20 aug in area bound by 05-53.68S 035-11.15W, 05-06.75S…Western South Atlantic · Brazil-northeast Coast
- HYDROLANT 2398/192019-08-06 → 2019-08-08Hazardous operations 1000Z to 2000Z daily 07 and 08 aug in area within five miles of 05-39S 034-52WWestern South Atlantic · Brazil-northeast Coast
- HYDROLANT 2364/192019-08-02 → 2019-08-07Hazardous operations 071100Z to 071500Z aug in area bound by 23-26.00S 042-30.80W, 23-26.00S 042-09.30W,…Western South Atlantic · Brazil
- HYDROLANT 2339/192019-07-31 → 2019-09-14Hazardous operations 0800Z to 2000Z daily 05 aug to 14 sep in area bound by 05-42.53S 034-45.02W, 06-09.83S…Western South Atlantic · Brazil-northeast Coast
- HYDROLANT 2280/192019-07-26 → 2019-07-28Hazardous operations 1500Z to 2000Z daily 27 and 28 jul in areas bound by: a. 12-59.73S 038-32.20W,…Western South Atlantic · Brazil-east Coast
- HYDROLANT 2184/192019-07-19 → 2019-07-24Hazardous operations 1000Z to 1500Z daily 23 and 24 jul in area bound by 24-20S 043-10W, 23-55S 043-10W,…Western South Atlantic · Brazil-south Coast
- HYDROLANT 2112/192019-07-13 → 2019-08-11Hazardous operations 18 jul thru 10 aug in area bound by 29-20.53S 049-05.53W, 29-27.03S 049-32.02W,…Western South Atlantic · Brazil-south Coast
- HYDROLANT 2098/192019-07-12 → 2019-07-16Hazardous operations 1000Z to 2000Z daily 15 and 16 jul in area bound by 05-35S 035-03W, 05-45S 035-03W,…Western South Atlantic · Brazil-northeast Coast
- HYDROLANT 2013/192019-07-04 → 2019-07-12Hazardous operations 091500Z to 121500Z jul in area bound by 24-09S 041-10W, 24-42S 039-33W, 26-14S 040-12W,…Western South Atlantic · Brazil-southeast Coast
- HYDROLANT 1844/192019-06-20 → 2019-06-26Hazardous operations 1100Z to 2300Z daily 25 and 26 jun in area bound by 32-19.0S 052-07.0W, 32-26.0S…Western South Atlantic · Brazil-south Coast
- HYDROLANT 1769/192019-06-12 → 2019-06-21Hazardous operations 170900Z to 212100Z jun in area bound by 24-09S 041-10W, 24-42S 039-33W, 26-14S 040-12W,…Western South Atlantic · Brazil-southeast Coast
- HYDROLANT 1731/192019-06-07 → 2019-06-14Hazardous operations 0900Z to 2130Z daily 12 thru 14 jun in area bound by 22-58.72S 042-02.15W, 23-01.00S…Western South Atlantic · Brazil-southeast Coast
- HYDROLANT 1711/192019-06-05 → 2019-06-14Hazardous operations 100900Z through 142100Z jun in area bound by 24-09S 041-10W, 24-42S 039-33W, 26-14S…Western South Atlantic · Brazil-southeast Coast
- HYDROLANT 1615/192019-05-28 → 2019-06-01Hazardous operations 280001Z may to 262359Z jun in area bound by 29-20.53S 049-05.53W, 29-27.03S 049-32.02W,…Western South Atlantic · Brazil-south Coast
- HYDROLANT 1556/192019-05-23 → 2019-05-29Hazardous operations 281000Z to 292000Z may in area within ten miles of 23-49S 043-25WWestern South Atlantic · Brazil-south Coast
- HYDROLANT 1540/192019-05-22 → 2019-05-30Hazardous operations 1000Z to 2100Z daily 19 thru 30 may in area bound by 05-54.13S 035-10.00W, 05-47.04S…Western South Atlantic · Brazil-northeast Coast
- HYDROLANT 1473/192019-05-15 → 2019-05-16Hazardous operations 150900Z to 190900Z may in areas bound by: a. 25-11.50S 046-49.13W, 25-01.17S…Western South Atlantic · Brazil-south Coast
- HYDROLANT 1472/192019-05-15 → 2019-05-15Hazardous operations 150900Z to 190900Z may in areas bound by: a. 25-11.50S 046-49.13W, 25-01.17S…Western South Atlantic · Brazil-south Coast
- HYDROLANT 1136/192019-04-11 → 2019-04-16Hazardous operations 161300Z thru 162100Z apr in area bound by 32-16S 052-07W, 32-23S 051-56W, 32-31S…Western South Atlantic · Brazil-south Coast
- HYDROLANT 890/192019-03-20 → 2019-03-23Hazardous operations 200900Z to 230900Z mar in area bound by 25-21.00S 046-26.00W, 25-28.00S 046-38.88W,…Western South Atlantic · Brazil-south Coast
- HYDROLANT 852/192019-03-17 → 2019-03-19Hazardous operations 180900Z to 230900Z mar in areas bound by: a. 25-11.50S 046-49.13W, 25-01.17S…Western North Atlantic · Brazil-south Coast
- HYDROLANT 851/192019-03-17 → 2019-03-19Hazardous operations 170900Z to 220900Z mar in areas bound by: a. 25-11.50S 046-49.13W, 25-01.17S…Western North Atlantic · Brazil-south Coast
- HYDROLANT 842/192019-03-16 → 2019-03-31Hazardous operations 0900Z to 0100Z commencing daily 27 feb thru 30 mar in area bound by 29-20.53S…Western South Atlantic · Brazil-south Coast
- HYDROLANT 828/192019-03-15 → 2019-03-20Hazardous operations 150900Z to 200900Z mar in areas bound by: a. 25-11.48S 046-49.13W, 25-01.17S…Western North Atlantic · Brazil-south Coast
- HYDROLANT 796/192019-03-13 → 2019-03-18Hazardous operations 130900Z to 180900Z mar in areas bound by: a. 25-11.49S 046-49.13W, 25-01.17S…Western North Atlantic · Brazil-south Coast
- HYDROLANT 766/192019-03-10 → 2019-03-12Hazardous operations 110900Z to 160900Z mar in areas bound by: a. 25-11.48S 046-49.13W, 25-01.17S…Western South Atlantic · Brazil-south 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.