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
A
S
O
N
D
Other hazards in the South Atlantic Ocean
Archive · 1,947 cancelled
- HYDROLANT 3425/202020-11-06 → 2020-11-11Hazardous operations 110800Z to 111600Z nov in area bound by 03-46.03S 036-34.23W, 04-09.45S 036-55.35W,…Western South Atlantic · Brazil-north Coast
- HYDROLANT 3402/202020-11-04 → 2020-11-11Hazardous operations 100001Z to 102359Z nov in area bound by 23-40S 043-26W, 23-20S 043-26W, 23-20S 043-48W,…Western South Atlantic · Brazil-south Coast
- HYDROLANT 3385/202020-11-04 → 2020-11-13Hazardous operations 1000Z to 2100Z daily 09 thru 13 nov in area bound by 05-54.13S 035-10.00W, 05-47.04S…Western South Atlantic · Brazil-northeast Coast
- HYDROLANT 3321/202020-10-30 → 2020-11-08Hazardous operations 041100Z to 072300Z nov in area bound by 32-15.0S 052-09.0W, 32-23.0S 052-16.0W,…Western South Atlantic · Brazil-south Coast
- HYDROLANT 3232/202020-10-24 → 2020-10-30Hazardous operations 291300Z to 291900Z and 301000Z to 301500Z oct in area bound by 13-24S 038-36W, 13-14S…Western South Atlantic · Brazil-east Coast
- HYDROLANT 3197/202020-10-21 → 2020-10-30Hazardous operations 1300Z to 2100Z daily 26 thru 30 oct in area bound by 05-56.13S 035-10.01W, 06-09.13S…Western South Atlantic · Brazil-northeast Coast
- HYDROLANT 3137/202020-10-16 → 2020-10-21Hazardous operations 211000Z to 212100Z oct in area bound by 05-55.37S 035-09.63W, 05-52.01S 035-06.85W,…Western South Atlantic · Brazil-northeast Coast
- HYDROLANT 2983/202020-10-01 → 2020-10-05Hazardous operations 051000Z to 052100Z oct in area within ten miles of of 05-39.4S 034-52.0WWestern South Atlantic · Brazil-northeast Coast
- HYDROLANT 2975/202020-10-01 → 2020-10-02Hazardous operations 1000Z to 2100Z daily 06 thru 09 oct in area bound by 22-59.72S 043-58.30W, 22-59.27S…Western South Atlantic · Brazil-south Coast
- HYDROLANT 2929/202020-09-26 → 2020-09-27Hazardous operations 261200Z to 262300Z sep in area bound by 20-18.0S 040-17.3W, 20-18.8S 040-15.4W,…Western South Atlantic · Brazil-southeast Coast
- HYDROLANT 2904/202020-09-24 → 2020-09-30Hazardous operations 290900Z to 302000Z sep in area bound by 13-14S 038-36W, 13-14S 038-26W, 13-24S 038-26W,…Western South Atlantic · Brazil-east Coast
- HYDROLANT 2893/202020-09-23 → 2020-10-28Hazardous operations 280900Z sep to 282100Z oct in area bound by 23-27.03S 043-52.03W, 23-30.03S 043-50.03W,…Western South Atlantic · Brazil-south Coast
- HYDROLANT 2886/202020-09-22 → 2020-09-25Hazardous operations 211200Z thru 251900Z sep in area bound by 24-06.00S 045-27.00W, 24-01.00S 045-35.00W,…Western South Atlantic · Brazil-south Coast
- HYDROLANT 2879/202020-09-21 → 2020-09-22Hazardous operations 1200Z to 1900Z daily 21 thru 25 sep in area bound by 24-06.00S 045-27.00W, 24-01.00S…Western South Atlantic · Brazil-south Coast
- HYDROLANT 2861/202020-09-19 → 2020-10-02Hazardous operations 241000Z sep to 022000Z oct in area within 30 miles of 02-10S 032-00WWestern South Atlantic
- HYDROLANT 2832/202020-09-17 → 2020-09-26Hazardous operations 0800Z to 2200Z daily 22 thru 26 sep in area bound by 24-13.0S 040-52.0W, 24-32.0S…Western South Atlantic
- HYDROLANT 2819/202020-09-16 → 2020-10-02Hazardous operations 0500Z to 1900Z daily 21 sep thru 02 oct in area bound by 29-20.53S 049-05.53W,…Western South Atlantic · Brazil-south Coast
- HYDROLANT 2818/202020-09-16 → 2020-09-25Hazardous operations 1300Z to 2100Z daily 21 thru 25 sep in area bound by 05-56.13S 035-10.01W, 06-09.13S…Western South Atlantic · Brazil-northeast Coast
- HYDROLANT 2776/202020-09-10 → 2020-09-19Hazardous operations 0800Z to 2200Z daily 15 thru 19 sep in area bound by 24-13.0S 040-52.0W, 24-32.0S…Western South Atlantic
- HYDROLANT 2775/202020-09-10 → 2020-09-12Hazardous operations 0800Z to 2200Z daily until 12 sep in area bound by 24-13.0S 040-52.0W, 24-32.0S…Western South Atlantic
- HYDROLANT 2773/202020-09-09 → 2020-09-12Hazardous operations 121000Z to 121900Z sep in area bound by 32-14.6S 052-10.9W, 32-16.8S 052-02.8W,…Western South Atlantic · Brazil-south Coast
- HYDROLANT 2715/202020-09-03 → 2020-10-20Hazardous operations 0800Z to 2100Z daily 08 sep thru 20 oct in area bound by 05-42.53S 034-45.02W,…Western South Atlantic · Brazil-northeast Coast
- HYDROLANT 2706/202020-09-02 → 2020-09-11Hazardous operations 1000Z to 1900Z daily 07 thru 11 sep in area bound by 32-14.6S 052-10.9W, 32-16.8S…Western South Atlantic · Brazil-south Coast
- HYDROLANT 2638/202020-08-27 → 2020-09-05Hazardous operations 0800Z to 2200Z daily 01 thru 05 sep in area bound by 24-13.0S 040-52.0W, 24-32.0S…Western South Atlantic · Brazil-southeast Coast
- HYDROLANT 2637/202020-08-27 → 2020-09-02Hazardous operations 0800Z to 2300Z daily 29 aug thru 01 sep in area within six miles of 23-08S 043-40W 2.…Western South Atlantic · Brazil-south Coast
- HYDROLANT 2604/202020-08-23 → 2020-08-26Hazardous operations 240300Z to 260300Z aug in area within ten miles of 23-37.5S 039-40.0WWestern South Atlantic · Brazil-southeast Coast
- HYDROLANT 2593/202020-08-22 → 2020-08-28Hazardous operations 1100Z to 2300Z daily 27 to 28 aug in areas within six miles of 23-08S 043-40WWestern South Atlantic · Brazil-south Coast
- HYDROLANT 2576/202020-08-20 → 2020-08-27Hazardous operations 0800Z to 2100Z daily 24 aug to 02 oct in area bound by 05-42.53S 034-45.02W, 06-09.83S…Western South Atlantic · Brazil-northeast Coast
- HYDROLANT 2575/202020-08-20 → 2020-08-29Hazardous operations 0800Z to 2200Z daily 25 thru 29 aug in area bound by 24-13.0S 040-52.0W, 24-32.0S…Western South Atlantic
- HYDROLANT 2530/202020-08-15 → 2020-08-18Hazardous operations 160300Z to 180300Z aug in area within ten miles of 23-37.5S 039-40.0WWestern South Atlantic · Brazil-southeast Coast
- HYDROLANT 2508/202020-08-13 → 2020-08-28Hazardous operations 1000Z to 2000Z daily 18 thru 28 aug in area within five miles of 05-39S 034-52WWestern South Atlantic · Brazil-northeast Coast
- HYDROLANT 2506/202020-08-13 → 2020-08-22Hazardous operations 0800Z to 2200Z daily 18 thru 22 aug in area bound by 24-13.0S 040-52.0W, 24-32.0S…Western South Atlantic
- HYDROLANT 2503/202020-08-12 → 2020-08-19Gunnery exercises 172201Z to 192159Z aug in area bound by 22-20.0S 014-00.0E, 22-35.1S 014-00.0E, 22-35.1S…Eastern South Atlantic · Namibia
- HYDROLANT 2411/202020-08-01 → 2020-08-07Hazardous operations 061100Z to 071500Z aug in area bound by 24-25S 043-46W, 24-05S 043-46W, 24-05S 043-24W,…Western South Atlantic · Brazil-south Coast
- HYDROLANT 2410/202020-08-01 → 2020-08-06Hazardous operations 050900Z to 061900Z aug in area bound by 23-15.0S 042-29.8W, 23-15.0S 043-13.5W,…Western South Atlantic · Brazil-south Coast
- HYDROLANT 2408/202020-08-01 → 2020-08-07Hazardous operations 1000Z to 2000Z daily 05 thru 07 aug in area within five miles of 05-39S 034-52WWestern South Atlantic · Brazil-northeast Coast
- HYDROLANT 2314/202020-07-23 → 2020-07-31Hazardous operations 1000Z to 1900Z daily 28 thru 31 jul in area bound by 32-14.6S 052-10.9W, 32-16.8S…Western South Atlantic · Brazil-south Coast
- HYDROLANT 2275/202020-07-20 → 2020-07-25Hazardous operations 251000Z to 251800Z jul 22-22.5S 041-14.5W, 22-10.0S 040-58.0W, 22-20.0S 040-47.0W,…Western South Atlantic · Brazil-southeast Coast
- HYDROLANT 2245/202020-07-17 → 2020-07-25Hazardous operations 220800Z jul to 250001Z jul in area within seven miles of 20-58S 040-43WWestern South Atlantic · Brazil-southeast Coast
- HYDROLANT 2239/202020-07-16 → 2020-07-21Hazardous operations 211500Z to 221500Z jul in area bound by 24-25S 043-46W, 24-05S 043-46W, 24-05S 043-24W,…Western South Atlantic · Brazil-south Coast
- HYDROLANT 2184/202020-07-09 → 2020-07-24Hazardous operations 130000Z to 232359Z july in area bound by 23-28.96S 044-29.81W, 23-29.37S 042-31.16W,…Western South Atlantic · Brazil-south Coast
- HYDROLANT 2122/202020-07-03 → 2020-07-11Hazardous operations 2300Z to 1300Z commencing daily 08 thru 10 jul in area bound by 24-33S 041-30W, 24-18S…Western South Atlantic
- HYDROLANT 2106/202020-07-01 → 2020-07-06Hazardous operations 051500Z to 062000Z jul in area bound by 24-05S 043-35W, 23-45S 043-35W, 23-45S 043-13W,…Western South Atlantic · Brazil-south Coast
- HYDROLANT 2041/202020-06-25 → 2020-06-27Western south atlantic DNC 01
- HYDROLANT 2040/202020-06-25 → 2020-07-04Western south atlantic DNC 01
- HYDROLANT 1973/202020-06-17 → 2020-06-27Hazardous operations 221100Z to 272100Z jun in area bound by 02-18.93S 044-22.02W, 02-13.79S 044-22.07W,…Western North Atlantic · Brazil-north Coast
- HYDROLANT 1914/202020-06-11 → 2020-06-17Hazardous operations 1000Z to 2000Z daily 16 and 17 jun in area within eight miles of 05-45S 034-50WWestern South Atlantic · Brazil-northeast Coast
- HYDROLANT 1893/202020-06-08 → 2020-06-12Hazardous operations 1300Z to 1900Z daily 08 thru 12 jun in area within eight miles of 05-24.52S 034-45.25WWestern South Atlantic · Brazil-northeast Coast
- HYDROLANT 1715/202020-05-21 → 2020-05-29Hazardous operations 1100Z to 2000Z daily 25 thru 29 may in area bound by 32-16S 052-07W, 32-23S 051-56W,…Western South Atlantic · Brazil-south Coast
- HYDROLANT 1675/202020-05-16 → 2020-05-21Hazardous operations 210900Z to 211500Z may in area bound by 24-05S 043-35W, 23-45S 043-35W, 23-45S 043-13W,…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.