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 3260/182018-10-17 → 2018-10-18Hazardous operations 181400Z to 181800Z oct in area within six miles of 23-10S 043-03WWestern South Atlantic · Brazil-south Coast
- HYDROLANT 3202/182018-10-12 → 2018-10-19Hazardous operations 1100Z to 2100Z daily 17 thru 19 oct in area bound by 05-54.13S 035-10.00W, 05-47.04S…Western South Atlantic · Brazil-northeast Coast
- HYDROLANT 3191/182018-10-11 → 2018-10-16Hazardous operations 161000Z to 162100Z oct in area within 20 miles of 13-38S 038-16WWestern South Atlantic · Brazil-east Coast
- HYDROLANT 3185/182018-10-10 → 2018-10-20Hazardous operations 151100Z to 202100Z oct in area bound by 02-18.93S 044-22.02W, 02-13.79S 044-22.07W,…Western South Atlantic · Brazil
- HYDROLANT 3154/182018-10-08 → 2018-11-06Hazardous operations 0800Z to 2000Z daily 13 oct thru 06 nov in area: a. bound by 05-42.53S 034-45.02W,…Western South Atlantic · Brazil-northeast Coast
- HYDROLANT 3089/182018-10-01 → 2018-10-25Hazardous operations 050900Z oct to 052100Z nov in area bound by 23-22.30S 043-10.82W, 23-44.93S 043-09.97W,…Western South Atlantic · Brazil-south Coast
- HYDROLANT 3055/182018-09-27 → 2018-09-30Hazardous operations in progress until 300900Z sep in area bound by 25-21.00S 046-26.00W, 25-28.00S…Western South Atlantic · Brazil-south Coast
- HYDROLANT 3033/182018-09-26 → 2018-09-28Hazardous operations 011100Z to 062100Z oct in area bound by 02-18.93S 044-22.02W, 02-13.79S 044-22.07W,…Western South Atlantic · Brazil-north Coast
- HYDROLANT 2996/182018-09-22 → 2018-09-28Hazardous operations 271400Z to 281800Z sep in area within six miles of 23-10S 043-03WWestern South Atlantic · Brazil-south Coast
- HYDROLANT 2970/182018-09-20 → 2018-09-28Hazardous operations 1000Z to 2100Z daily 25 thru 28 sep in area bound by 05-54.13S 035-10.00W, 05-47.04S…Western South Atlantic · Brazil-northeast Coast
- HYDROLANT 2959/182018-09-19 → 2018-09-24Hazardous operations 241400Z to 241800Z sep in area within six miles of 23-10S 043-03WWestern South Atlantic · Brazil-south Coast
- HYDROLANT 2958/182018-09-19 → 2018-09-28Hazardous operations 0900Z to 1630Z daily 24 thru 28 sep in area bound by 24-00.00S 046-24.00W, 24-10.00S…Western South Atlantic · Brazil-south Coast
- HYDROLANT 2879/182018-09-12 → 2018-09-19Hazardous operations 171400Z to 191800Z sep in area within six miles of 23-10S 043-03WWestern South Atlantic · Brazil-south Coast
- HYDROLANT 2878/182018-09-12 → 2018-09-21Hazardous operations 170600Z to 212100Z sep in area bound by 24-09S 041-10W, 24-42S 039-33W, 26-14S 040-12W,…Western South Atlantic
- HYDROLANT 2874/182018-09-11 → 2018-09-14Hazardous operations 121400Z to 141800Z sep within six miles of 23-10S 043-03WWestern South Atlantic · Brazil-south Coast
- HYDROLANT 2820/182018-09-05 → 2018-09-21Hazardous operations 100600Z to 212100Z sep in area bound by 24-09S 041-10W, 24-42S 039-33W, 26-14S 040-12W,…Western South Atlantic · Brazil-southeast Coast
- HYDROLANT 2689/182018-08-22 → 2018-08-31Hazardous operations 280600Z to 312100Z aug in area bound by 24-09S 041-10W, 24-42S 039-33W, 26-14S 040-12W,…Western South Atlantic · Brazil-southeast Coast
- HYDROLANT 2678/182018-08-22 → 2018-10-12Hazardous operations 0800Z to 2000Z daily 27 aug thru 12 oct in area bound by 05-42.53S 034-45.02W,…Western South Atlantic · Brazil-northeast Coast
- HYDROLANT 2642/182018-08-18 → 2018-08-23Hazardous operations 231000Z to 231500Z aug in area within eight miles of 08-30S 034-30WWestern South Atlantic · Brazil-northeast Coast
- HYDROLANT 2631/182018-08-17 → 2018-08-18Hazardous operations 181300Z to 182300Z aug in area bound by 20-16.90S 040-16.35W, 20-18.80S 040-15.37W,…Western South Atlantic · Brazil-southeast Coast
- HYDROLANT 2612/182018-08-16 → 2018-08-20Hazardous operations 210600Z to 242100Z aug in area bound by 24-09.00S 041-10.00W, 24-42.00S 039-33.00W,…Western South Atlantic · Brazil-southeast Coast
- HYDROLANT 2543/182018-08-08 → 2018-08-11Hazardous operations 080900Z to 110900Z aug in areas bound by: a. 25-11.50S 046-49.13W, 25-01.17S…Western South Atlantic · Brazil-south Coast
- HYDROLANT 2506/182018-08-03 → 2018-08-06Hazardous operations 030900Z to 060900Z aug in area bound by 25-21.00S 046-26.00W, 25-28.00S 046-38.87W,…Western South Atlantic · Brazil-south Coast
- HYDROLANT 2474/182018-08-01 → 2018-08-10Hazardous operations 060900Z to 102100Z aug in area bound by 02-18.93S 044-22.02W, 02-13.79S 044-32.07W,…Western South Atlantic · Brazil-north Coast
- HYDROLANT 2448/182018-07-31 → 2018-08-03Hazardous operations 310900Z jul through 030900Z aug in area bound by 25-21.00S 046-26.00W, 25-28.00S…Western South Atlantic · Brazil-south Coast
- HYDROLANT 2427/182018-07-29 → 2018-08-04Hazardous operations 1200Z to 1500Z daily 02 thru 04 aug in area bound by 24-09S 041-10W, 24-42S 039-33W,…Western South Atlantic · Brazil-southeast Coast
- HYDROLANT 2392/182018-07-25 → 2018-07-27Hazardous operations 300900Z jul to 042100Z aug in area bound by 02-18.93S 044-22.02W, 02-13.79S 044-22.07W,…Western South Atlantic · Brazil-north Coast
- HYDROLANT 2279/182018-07-13 → 2018-07-16Hazardous operations 130900Z to 160900Z jul in area bound by 25-21.00S 046-26.00W, 25-28.00S 046-38.88W,…Western South Atlantic · Brazil-south Coast
- HYDROLANT 2277/182018-07-13 → 2018-07-18Hazardous operations 180900Z to 181500Z jul in area within eight miles of 05-31S 034-44WWestern South Atlantic · Brazil-northeast Coast
- HYDROLANT 2265/182018-07-12 → 2018-07-18Hazardous operations 170800Z to 182200Z jul in areas: a. between 24-00.0S 23-45.0S and 042-52.0W 042-30.0WWestern South Atlantic · Brazil-south Coast
- HYDROLANT 2264/182018-07-12 → 2018-07-12Hazardous operations 170800Z to 182200Z jul in areas: a. between 24-20.04S 23-45.04S and 043-10.04W 042-30.04WWestern South Atlantic · Brazil-south Coast
- HYDROLANT 2246/182018-07-11 → 2018-07-20Hazardous operations 1000Z to 2100Z daily 16 thru 20 jul in area bound by 05-54.13S 035-10.00W, 05-47.04S…Western South Atlantic · Brazil-northeast Coast
- HYDROLANT 2236/182018-07-10 → 2018-07-13Hazardous operations 101900Z to 130900Z jul in area bound by 25-21.00S 046-26.00W, 25-28.02S 046-38.88W,…Western South Atlantic · Brazil-south Coast
- HYDROLANT 2203/182018-07-06 → 2018-07-12Hazardous operations 121700Z to 122000Z jul within eight miles of 04-25.47S 032-52.23WWestern South Atlantic · Brazil
- HYDROLANT 2137/182018-07-01 → 2018-07-06Hazardous operations 020900Z to 050900Z jul in area bound by a. 25-11.49S 046-49.14W, 25-01.17S 046-20.87W,…Western South Atlantic · Brazil-south Coast
- HYDROLANT 2056/182018-06-24 → 2018-06-29Hazardous operations 290900Z to 291600Z jun in area bound by 24-06.0S 045-27.0W, 24-01.0S 045-35.0W,…Western South Atlantic · Brazil-south Coast
- HYDROLANT 2054/182018-06-24 → 2018-06-26Hazardous operations in progress until 260900Z jun in areas bound by: a. 25-11.50S 046-49.15W, 25-01.17S…Western South Atlantic · Brazil-south Coast
- HYDROLANT 2016/182018-06-21 → 2018-06-25Hazardous operations 220900Z to 250900Z jun in areas bound by: a. 25-11.48S 046-49.13W, 25-01.17S…Western South Atlantic · Brazil-south Coast
- HYDROLANT 1884/182018-06-12 → 2018-06-20Hazardous operations 181600Z to 200030Z jun in areas: a. bound by 23-02.05S 043-35.05W, 23-04.05S…Western South Atlantic · Brazil-south Coast
- HYDROLANT 1834/182018-06-09 → 2018-06-14Hazardous operations 141500Z to 142100Z jun within 15 miles of 23-43S 042-12WWestern South Atlantic · Brazil-southeast Coast
- HYDROLANT 1831/182018-06-09 → 2018-06-11Hazardous operations in progress until 110900Z jun in area bound by 25-21.00S 046-26.00W, 25-28.00S…Western South Atlantic · Brazil-south Coast
- HYDROLANT 1811/182018-06-08 → 2018-06-11Hazardous operations in progress until 110900Z jun in area bound by 25-21.00S 046-26.00W, 25-28.00S…Western South Atlantic · Brazil-south Coast
- HYDROLANT 1779/182018-06-06 → 2018-06-09Hazardous operations 060900Z to 090900Z jun in areas bound by: a. 25-11.48S 046-49.13W, 25-01.17S…Western South Atlantic · Brazil-south Coast
- HYDROLANT 1744/182018-06-03 → 2018-06-08Hazardous operations 081500Z to 082100Z jun within 15 miles of 23-43S 042-12WWestern South Atlantic · Brazil-southeast Coast
- HYDROLANT 1722/182018-06-01 → 2018-06-03Hazardous operations 010900Z to 030900Z jun in areas bound by: a. 25-11.48S 046-49.13W, 25-01.17S…Western South Atlantic · Brazil-south Coast
- HYDROLANT 1648/182018-05-25 → 2018-05-29Hazardous operations 26 thru 28 may in 28-23.1S 015-48.8EEastern South Atlantic · Namibia
- HYDROLANT 1624/182018-05-24 → 2018-05-27Hazardous operations 240900Z to 270900Z may in areas bound by: a. 25-11.48S 046-49.13W, 25-01.17S…Western South Atlantic · Brazil-south Coast
- HYDROLANT 1623/182018-05-24 → 2018-05-28Hazardous operations 250900Z to 280900Z may in areas bound by: a. 25-11.48S 046-49.13W, 25-01.17S…Western South Atlantic · Brazil-south Coast
- HYDROLANT 1609/182018-05-23 → 2018-05-29Hazardous operations 1600Z to 1800Z daily 28 and 29 may: a. in area bound by 23-02.03S 043-51.03W, 23-02.00S…Western South Atlantic · Brazil-south Coast
- HYDROLANT 1538/182018-05-16 → 2018-05-17Hazardous operations 171100Z to 171800Z may in area within four miles of 23-05.78S 044-00.15WWestern 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.