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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M
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Other hazards in the South Atlantic Ocean
Archive · 1,947 cancelled
- HYDROLANT 2272/232023-10-07 → 2023-10-09Hazardous operations in progress until 092100Z oct in area bound by 23-55.00S 043-27.50W, 23-55.00S…Western South Atlantic · Brazil
- HYDROLANT 2251/232023-10-04 → 2023-10-05Hazardous operations 051500Z to 052100Z oct in area within eight miles of 23-24.80S 043-14.14WWestern South Atlantic · Brazil
- HYDROLANT 2221/232023-10-01 → 2023-10-04Hazardous operations 060900Z to 061600Z oct in area within eight miles of 23-24.80S 043-14.14WWestern South Atlantic · Brazil
- HYDROLANT 2220/232023-10-01 → 2023-10-07Hazardous operations 060001Z to 072100Z oct in area bound by 23-55.00S 043-27.50W, 23-55.00S 042-55.00W,…Western South Atlantic · Brazil
- HYDROLANT 2176/232023-09-27 → 2023-09-27Hazardous operations 271200Z to 272000Z sep in area within 12 miles of 24-22.68S 045-50.95WWestern South Atlantic · Brazil
- HYDROLANT 2175/232023-09-27 → 2023-10-02Hazardous operations 021500Z to 022100Z oct in area within eight miles of 06-18.00S 034-40.00WWestern South Atlantic · Brazil
- HYDROLANT 2165/232023-09-25 → 2023-10-01Hazardous operations 281800Z sep to 010001Z oct in area bound by 21-40.75S 038-46.70W, 21-40.75S 038-03.90W,…Western South Atlantic
- HYDROLANT 2147/232023-09-24 → 2023-09-29Hazardous operations 290300Z to 292100Z sep in area bound by 32-22.40S 052-12.40W, 32-30.40S 052-14.10W,…Western South Atlantic · Brazil
- HYDROLANT 2146/232023-09-24 → 2023-09-29Hazardous operations 291000Z to 291600Z sep in area within ten miles of 05-31.00S 034-53.00WWestern South Atlantic · Brazil
- HYDROLANT 2141/232023-09-23 → 2023-09-28Hazardous operations 280001Z to 280900Z sep in area bound by 20-35.00S 038-24.00W, 20-26.00S 038-36.00W,…Western South Atlantic · Brazil
- HYDROLANT 2130/232023-09-22 → 2023-09-27Hazardous operations 271000Z to 272200Z sep in area bound by 19-45.00S 038-00.00W, 18-30.00S 038-00.00W,…Western South Atlantic · Brazil
- HYDROLANT 2125/232023-09-21 → 2023-09-26Hazardous operations 261000Z to 261600Z sep in area within 20 miles of 15-50.00S 036-45.00WWestern South Atlantic
- HYDROLANT 2124/232023-09-21 → 2023-09-27Hazardous operations 262300Z to 270300Z sep in area bound by 17-35.00S 036-10.00W, 17-35.00S 035-50.00W,…Western South Atlantic
- HYDROLANT 2123/232023-09-21 → 2023-09-27Hazardous operations 261600Z to 262300Z sep in area bound by 16-45.00S 036-11.00W, 16-49.00S 036-20.00W,…Western South Atlantic
- HYDROLANT 2118/232023-09-20 → 2023-09-21Hazardous operations 211000Z to 212100Z sep in area within 10 miles of 06-23.00S 034-39.00WWestern South Atlantic · Brazil
- HYDROLANT 2110/232023-09-20 → 2023-09-30Hazardous operations 251600Z to 302200Z sep in area bound by 13-36.00S 038-22.00W, 13-30.50S 038-13.00W,…Western South Atlantic · Brazil
- HYDROLANT 2108/232023-09-20 → 2023-09-30Hazardous operations 250001Z to 292359Z sep in area bound by 23-02.03S 043-36.03W, 23-13.05S 043-56.99W,…Western South Atlantic · Brazil
- HYDROLANT 2078/232023-09-16 → 2023-09-22Hazardous operations 211400Z to 220300Z sep in area bound by 14-58.00S 037-52.50W, 15-02.00S 038-07.00W,…Western South Atlantic · Brazil
- HYDROLANT 2077/232023-09-16 → 2023-09-22Hazardous operations 211100Z to 222200Z sep in area bound by 23-10.00S 042-45.10W, 22-56.20S 042-45.10W,…Western South Atlantic · Brazil
- HYDROLANT 2065/232023-09-15 → 2023-09-21Hazardous operations 202230Z to 210200Z sep in area bound by 17-45.00S 037-55.00W, 17-30.00S 037-55.00W,…Western South Atlantic · Brazil
- HYDROLANT 2001/232023-09-06 → 2023-09-14Hazardous operations 110300Z to 132300Z sep in area within five miles of 23-04.50S 043-42.65WWestern South Atlantic · Brazil
- HYDROLANT 1969/232023-09-01 → 2023-09-09Hazardous operations 040800Z to 082359Z sep in area bound by 23-55.00S 043-27.50W, 23-55.00S 042-55.00W,…Western South Atlantic · Brazil
- HYDROLANT 1891/232023-08-24 → 2023-08-29Hazardous operations 291000Z to 292000Z aug in area within ten miles of 06-23.00S 034-25.00WWestern South Atlantic · Brazil
- HYDROLANT 1845/232023-08-19 → 2023-09-01Hazardous operations 241200Z to 312359Z aug in area bound by 23-55.00S 043-27.50W, 23-55.00S 042-55.00W,…Western South Atlantic · Brazil
- HYDROLANT 1823/232023-08-17 → 2023-08-23Hazardous operations 221600Z to 230400Z aug in area within 20 miles of 13-19.49S 036-15.40WWestern South Atlantic · Brazil
- HYDROLANT 1822/232023-08-17 → 2023-08-25Hazardous operations 220900Z to 250400Z aug in area bound by 31-28.42S 049-14.03W, 31-13.60S 049-44.45W,…Western South Atlantic · Brazil
- HYDROLANT 1811/232023-08-16 → 2023-09-29Hazardous operations 0530Z to 1800Z daily 21 aug thru 29 sep in area bound by 05-42.53S 034-45.02W,…Western South Atlantic · Brazil
- HYDROLANT 1785/232023-08-12 → 2023-08-16Hazardous operations 0800Z to 2300Z daily 14 and 15 aug in area bound by 05-54.13S 035-10.00W, 05-47.04S…Western South Atlantic · Brazil
- HYDROLANT 1768/232023-08-09 → 2023-08-15Hazardous operations 101200Z to 152100Z aug in area bound by 23-55.00S 042-55.00W, 23-55.00S 043-27.50W,…Western South Atlantic · Brazil
- HYDROLANT 1752/232023-08-07 → 2023-08-11Hazardous operations 101200Z to 182359Z aug in area bound by 24-17.00S 043-00.00W, 24-17.00S 043-38.00W,…Western South Atlantic · Brazil
- HYDROLANT 1739/232023-08-06 → 2023-08-12Hazardous operations 110900Z to 120400Z in area bound by 31-28.42S 049-14.02W, 31-13.60S 049-44.45W,…Western South Atlantic · Brazil
- HYDROLANT 1738/232023-08-06 → 2023-08-11Hazardous operations 100900Z to 110400Z aug in area bound by 28-29.50S 046-35.63W, 28-12.87S 047-04.53W,…Western South Atlantic · Brazil
- HYDROLANT 1727/232023-08-04 → 2023-08-11Hazardous operations 090900Z to 111900Z aug in area within ten miles of 13-20.00S 038-15.00WWestern South Atlantic · Brazil
- HYDROLANT 1718/232023-08-03 → 2023-08-10Hazardous operations 0800Z to 1400Z daily 08 thru 10 aug in area bound by 05-51.89S 034-54.35W, 05-47.04S…Western South Atlantic · Brazil
- HYDROLANT 1676/232023-07-26 → 2023-08-03Hazardous operations 0900Z to 1900Z daily 31 jul thru 03 aug in area within ten miles of 13-20.00S 038-15.00WWestern South Atlantic · Brazil
- HYDROLANT 1675/232023-07-26 → 2023-08-18Hazardous operations 0900Z to 2130Z daily 31 jul thru 18 aug in area bound by 29-20.53S 049-05.53W,…Western South Atlantic · Brazil
- HYDROLANT 1648/232023-07-22 → 2023-07-26Hazardous operations 0900Z to 1900Z daily 25 thru 28 jul in area within ten miles of 13-20.00S 038-15.00WWestern South Atlantic · Brazil
- HYDROLANT 1640/232023-07-21 → 2023-07-26Hazardous operations 261800Z to 262100Z jul in area bound by 23-44.38S 043-18.05W, 23-44.38S 043-36.72W,…Western South Atlantic · Brazil
- HYDROLANT 1626/232023-07-19 → 2023-07-28Hazardous operations 1000Z to 2030Z daily 24 thru 28 jul in area bound by 05-54.13S 035-10.00W, 05-47.04S…Western South Atlantic · Brazil
- HYDROLANT 1625/232023-07-19 → 2023-07-26Hazardous operations 1300Z to 1800Z daily 24 thru 26 jul in area bound by 13-20.58S 038-16.30W, 13-20.58S…Western South Atlantic · Brazil
- HYDROLANT 1622/232023-07-18 → 2023-07-30Hazardous operations 211200Z TO310001Z jul in area bound by 24-17.00S 043-18.00W, 24-17.00S 043-56.00W,…Western South Atlantic · Brazil
- HYDROLANT 1597/232023-07-15 → 2023-07-21Hazardous operations 200300Z to 210300Z jul in area bound by 23-10.00S 042-45.10W, 23-10.00S 042-12.50W,…Western South Atlantic · Brazil
- HYDROLANT 1590/232023-07-15 → 2023-07-21Hazardous operations 1000Z to 2030Z daily 17 thru 21 jul in area bound by 05-54.13S 035-10.00W, 05-47.04S…Western South Atlantic · Brazil
- HYDROLANT 1576/232023-07-13 → 2023-07-18Hazardous operations 181100Z to 181400Z jul in area within ten miles of 05-31.00S 034-31.00WWestern South Atlantic · Brazil
- HYDROLANT 1560/232023-07-11 → 2023-07-29Hazardous operations 160900Z to 292100Z jul in area bound by 27-59.52S 048-13.07W, 28-06.34S 048-01.90W,…Western South Atlantic · Brazil
- HYDROLANT 1516/232023-07-06 → 2023-07-11Hazardous operations 111100Z to 111400Z jul in area within ten miles of 05-45.00S 034-38.00WWestern South Atlantic · Brazil
- HYDROLANT 1483/232023-06-30 → 2023-07-02Hazardous operations 021100Z to 021600Z jul in areas bound by: a. 00-14.00S 047-39.00W, 00-14.00S…Western South Atlantic · Brazil
- HYDROLANT 1445/232023-06-27 → 2023-06-28Hazardous operations 1000Z to 2030Z daily 24 thru 28 jun in area bound by 05-54.13S 035-10.00W, 05-47.04S…Western South Atlantic · Brazil
- HYDROLANT 1441/232023-06-27 → 2023-06-30Hazardous operations 280900Z to 301900Z jun in area within ten miles of 13-20.00S 038-15.00WWestern South Atlantic · Brazil
- HYDROLANT 1419/232023-06-25 → 2023-06-30Hazardous operations 301100Z to 301500 jun in area bound by 24-05.00S 043-35.00W, 23-45.00S 043-35.00W,…Western South Atlantic · Brazil
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.