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)
J
F
M
A
M
J
J
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Other hazards in the South Atlantic Ocean
Archive · 1,947 cancelled
- HYDROLANT 2885/172017-09-16 → 2017-09-22Hazardous operations 221100Z to 221500Z sep in area within eight miles of 05-47S 034-47WWestern South Atlantic · Brazil-northeast Coast
- HYDROLANT 2884/172017-09-16 → 2017-09-22Hazardous operations 221100Z to 221500Z sep in area within eight miles of 05-35S 034-49WWestern South Atlantic · Brazil-northeast Coast
- HYDROLANT 2874/172017-09-15 → 2017-10-02Hazardous operations 0830Z to 2030Z daily 18 sep thru 27 oct: a. in area bound by 05-42.53S 034-45.02W,…Western South Atlantic · Brazil-northeast Coast
- HYDROLANT 2872/172017-09-15 → 2017-09-15Hazardous operations 0830Z to 2030Z daily 18 thru 27 sep: a. in area bound by 05-42.53S 034-45.02W,…Western South Atlantic · Brazil-northeast Coast
- HYDROLANT 2857/172017-09-15 → 2017-09-18Hazardous operations 150900Z to 180500Z sep in areas bound by: a. 25-11.48S 046-49.13W, 25-01.17S…Western South Atlantic · Brazil-south Coast
- HYDROLANT 2814/172017-09-12 → 2017-10-06Hazardous operations 1200Z to 2000Z daily 17 sep thru 06 oct in area bound by 29-20.53S 049-05.53W,…Western South Atlantic · Brazil-south Coast
- HYDROLANT 2813/172017-09-12 → 2017-09-25Hazardous operations 0001Z to 2359Z daily 17 thru 24 sep in area bound by 02-18.93S 044-22.02W, 02-09.00S…Western South Atlantic · Brazil-north Coast
- HYDROLANT 2794/172017-09-11 → 2017-09-15Hazardous operations 120900Z thru 150900Z sep in areas bound by: a. 25-11.48S 046-49.15W, 25-01.17S…Western South Atlantic · Brazil-south Coast
- HYDROLANT 2751/172017-09-07 → 2017-09-12Hazardous operations 090900Z thru 120500Z sep in areas bound by: a. 25-11.48S 046-49.13W, 25-01.17S…Western South Atlantic · Brazil-southern Coast
- HYDROLANT 2681/172017-09-01 → 2017-09-05Hazardous operations in progress until 050900Z sep in areas bound by: a. 25-11.50S 046-49.13W, 25-01.17S…Western South Atlantic · Brazil-south Coast
- HYDROLANT 2673/172017-09-01 → 2017-09-04Hazardous operations in progress until 040900Z sep in areas bound by: a. 25-11.50S 046-49.13W, 25-01.17S…Western South Atlantic · Brazil-south Coast
- HYDROLANT 2653/172017-08-30 → 2017-09-05Hazardous operations 051600Z to 051900Z sep within ten miles of 05-43S 034-45WWestern South Atlantic · Brazil-northeast Coast
- HYDROLANT 2640/172017-08-30 → 2017-09-03Hazardous operations 300900Z aug to 030500Z sep in areas bound by: a. 25-11.50S 046-49.13W, 25-01.17S…Western South Atlantic · Brazil-south Coast
- HYDROLANT 2611/172017-08-26 → 2017-08-29Hazardous operations 270315Z to 270733Z aug, alternate 280315Z to 280733Z, 290315Z to 290733Z aug in area…Eastern South Atlantic
- HYDROLANT 2605/172017-08-26 → 2017-08-26Hazardous operations 260315Z to 260733Z aug, alternate 270315Z to 270733Z, 280315Z to 280733Z and 290315Z to…Eastern South Atlantic
- HYDROLANT 2546/172017-08-21 → 2017-08-27Hazardous operations 260315Z to 260733Z aug, alternate 270315Z to 270733Z aug in area bound by 06-07S…Eastern South Atlantic
- HYDROLANT 2527/172017-08-18 → 2017-08-23Hazardous operations 231600Z to 232100Z aug in area within ten miles of 05-16.00S 034-48.00WWestern South Atlantic · Brazil-northeast Coast
- HYDROLANT 2507/172017-08-16 → 2017-08-22Hazardous operations 210900Z to 222100Z aug in area within 10 miles of 13-30S 038-15WWestern South Atlantic · Brazil-east Coast
- HYDROLANT 2481/172017-08-12 → 2017-08-16Hazardous operations 130900Z to 160900Z in areas bound by: a. 25-11.50S 046-49.13W, 25-01.17S 046-20.87W,…Western South Atlantic · Brazil-south Coast
- HYDROLANT 2451/172017-08-09 → 2017-08-15Hazardous operations 142000Z to 150300Z aug in area bound by 23-51S 043-23W, 24-05S 042-55W, 24-33S 043-12W,…Western South Atlantic · Brazil-south Coast
- HYDROLANT 2395/172017-08-03 → 2017-08-08Hazardous operations 081500Z to 082000Z aug in area within ten miles of 23-18.98S 043-08.82WWestern South Atlantic · Brazil-south Coast
- HYDROLANT 2338/172017-07-29 → 2017-07-31Hazardous operations 290300Z to 310300Z jul in areas bound by: a. 25-11.50S 046-49.13W, 25-01.17S…Western South Atlantic · Brazil-south Coast
- HYDROLANT 2308/172017-07-26 → 2017-07-29Hazardous operations 260900Z to 290900Z jul in area bound by 25-11.50S 046-49.13W, 25-01.17S 046-20.87W,…Western South Atlantic · Brazil-south Coast
- HYDROLANT 2283/172017-07-23 → 2017-07-26Hazardous operations 230900Z to 260900Z jul in areas bound by: a. 25-11.49S 046-49.14W, 25-01.17S…Western South Atlantic · Brazil-south Coast
- HYDROLANT 2270/172017-07-22 → 2017-07-25Hazardous operations 250700Z to 252200Z jul in area bound by 24-05S 041-19W, 24-42S 039-33W, 26-14S 040-12W,…Western South Atlantic · Brazil-southeast Coast
- HYDROLANT 2264/172017-07-21 → 2017-07-24Hazardous operations 210900Z to 240900Z jul in areas bound by: a. 25-11.50S 046-49.13W, 25-01.17S…Western South Atlantic · Brazil-south Coast
- HYDROLANT 2248/172017-07-20 → 2017-07-26Hazardous operations 0700Z to 2200Z daily 25 and 26 jul in area bound by 24-09S 041-10W, 24-42S 039-33W,…Western South Atlantic · Brazil-southeast Coast
- HYDROLANT 2236/172017-07-18 → 2017-07-26Hazardous operations 1100Z to 2100Z daily 24 thru 26 jul in area bound by 05-54.13S 035-10.00W, 05-47.04S…Western South Pacific · Brazil-northeast Coast
- HYDROLANT 2223/172017-07-18 → 2017-07-21Hazardous operations 180900Z to 210900Z jul in areas bound by: a. 25-11.50S 046-49.13W, 25-01.17S…Western South Atlantic · Brazil-south Coast
- HYDROLANT 2197/172017-07-15 → 2017-07-17Hazardous operations in progress until 170900Z jul in areas bound by: a. 25-11.50S 046-49.13W, 25-01.17S…Western South Atlantic · Brazil-south Coast
- HYDROLANT 2116/172017-07-07 → 2017-07-13Hazardous operations 131100Z to 131500Z jul in area within 15 miles of 06-43S 034-27WWestern South Atlantic · Brazil-northeast Coast
- HYDROLANT 2101/172017-07-07 → 2017-07-11Hazardous operations 070900Z to 110900Z jul in areas bound by: a. 25-11.50S 046-49.13W, 25-01.17S…Western South Atlantic · Brazil-south Coast
- HYDROLANT 2068/172017-07-05 → 2017-07-06Hazardous operations 061400Z to 062200Z jul in area bound by 24-09.0S 045-41.5W, 24-09.0S 045-30.5W,…Western South Atlantic · Brazil-south Coast
- HYDROLANT 2050/172017-07-03 → 2017-07-08Hazardous operations 081100Z to 081500Z jul within 10 miles of 04-22S 033-27WWestern South Atlantic · Brazil-northeast Coast
- HYDROLANT 1950/172017-06-24 → 2017-06-30Hazardous operations 240900Z to 300900Z jun in areas bound by: a. 25-11.48S 046-49.13W, 25-01.17S…Western South Atlantic · Brazil-south Coast
- HYDROLANT 1908/172017-06-21 → 2017-06-24Hazardous operations 210300Z to 240300Z jun in areas bound by: a. 25-11.50S 046-49.13W, 25-01.17S…Western South Atlantic · Brazil-south Coast
- HYDROLANT 1881/172017-06-16 → 2017-06-22Hazardous operations 221400Z to 221800Z in area within ten miles of 23-18.98S 043-08.82WWestern South Atlantic · Brazil-south Coast
- HYDROLANT 1876/172017-06-16 → 2017-06-22Hazardous operations 211100Z to 222200Z jun in area bound by 23-10.0S 042-45.0W, 23-10.0S 041-40.2W,…Westrn South Atlantic · Brazil-southeast Coast
- HYDROLANT 1853/172017-06-13 → 2017-06-23Hazardous operations 1200Z to 2000Z daily until 23 jun in area bound by 29-20.53S 049-05.53W, 29-27.03S…Western South Atlantic · Brazil-south Coast
- HYDROLANT 1833/172017-06-11 → 2017-06-15Hazardous operations 120300Z to 150300Z jun in areas bound by: a. 25-11.50S 046-49.13W, 25-01.17S…Western South Atlantic · Brazil-south Coast
- HYDROLANT 1782/172017-06-07 → 2017-06-10Hazardous operations 070300Z to 100300Z jun in areas bound by: a. 25-11.50S 046-49.13W, 25-01.17S…Western South Atlantic · Brazil-south Coast
- HYDROLANT 1732/172017-06-02 → 2017-06-05Hazardous operations 020300Z to 050300Z jun in areas bound by: a. 25-11.48S 046-49.13W, 25-01.17S…Western South Atlantic · Brazil-south Coast
- HYDROLANT 1714/172017-06-01 → 2017-06-05Hazardous operations 020900Z to 050900Z jun in areas bound by: a. 25-11.48S 046-49.13W, 25-01.17S…Western South Atlantic · Brazil-south Coast
- HYDROLANT 1679/172017-05-29 → 2017-06-10Hazardous operations 030001Z to 100001Z jun in area bound by 02-18.93S 044-22.02W, 02-13.79S 044-22.07W,…Western South Atlantic · Brazil-north Coast
- HYDROLANT 1614/172017-05-23 → 2017-06-13Hazardous operations 1200Z to 2000Z daily 29 may thru 16 jun in area bound by 29-20.53S 049-05.53W,…Western South Atlantic · Brazil-south Coast
- HYDROLANT 1587/172017-05-20 → 2017-05-25Hazardous operations 250900Z to 252100Z may in area bound by 09-44.10S 035-44.62W, 09-44.78S 035-45.95W,…Western South Atlantic · Brazil-east Coast
- HYDROLANT 1490/172017-05-11 → 2017-05-17Hazardous operations 171500Z to 172000Z may in area within ten miles of 23-18.98S 043-08.82WWestern South Atlantic · Brazil-south Coast
- HYDROLANT 1372/172017-04-30 → 2017-05-12Hazardous operations 021200Z to 121500Z may in area bound by 23-02.5S 041-03.5W, 22-42.0S 040-56.5W,…Western South Atlantic · Brazil-southeast Coast
- HYDROLANT 1179/172017-04-13 → 2017-04-20Hazardous operations 181200Z to 201930Z apr in area within .56 miles of 23-03.07S 043-38.85WWestern South Atlantic · Brazil-south Coast
- HYDROLANT 1178/172017-04-13 → 2017-04-18Hazardous operations 182000Z to 182200Z apr in areas: a. bound by 23-02.05S 043-35.05W, 23-04.05S…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.