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 2743/212021-11-05 → 2021-11-27Hazardous operations 100001Z to 302359Z nov in area bound by 24-31.00S 043-50.90W, 24-18.60S 043-34.25W,…Western South Atlantic · Brazil-south Coast
- HYDROLANT 2732/212021-11-04 → 2021-11-10Hazardous operations 090100Z to 120300Z nov in area bound by 21-25.0S 038-44.7W, 20-57.6S 038-18.1W,…Western South Atlantic · Brazil-southeast Coast
- HYDROLANT 2726/212021-11-03 → 2021-11-08Hazardous operations 081100Z to 081600Z nov in area within 12 miles of 05-36.50S 034-48.66WWestern South Atlantic · Brazil-northeast Coast
- HYDROLANT 2720/212021-11-02 → 2021-11-07Hazardous operations 071100Z to 071600Z nov in area within 12 miles of 06-23.0S 034-27.2WWestern South Atlantic · Brazil-northeast Coast
- HYDROLANT 2718/212021-11-02 → 2021-12-18Hazardous operations in progress until 27 apr 22 in area bound by 24-37.69S 042-17.96W, 24-35.74S…Western South Atlantic
- HYDROLANT 2710/212021-11-01 → 2021-11-06Hazardous operations 060900Z to 061500Z nov in area within 12 miles of 05-36.50S 034-48.66WWestern South Atlantic · Brazil-northeast Coast
- HYDROLANT 2700/212021-10-31 → 2021-11-05Hazardous operations 050800Z to 052100Z nov in area within ten miles of 03-46.9S 037-40.5WWestern South Atlantic · Brazil-north Coast
- HYDROLANT 2697/212021-10-31 → 2021-11-05Hazardous operations 051500Z to 052000Z nov in area bound by 06-15.5S 034-35.4W, 06-11.9S 034-25.9W,…Western South Atlantic · Brazil-northeast Coast
- HYDROLANT 2696/212021-10-31 → 2021-11-16Hazardous operations 050001Z to 152359Z nov in area bound by 24-15S 042-30W, 23-45S 042-30W, 23-45S 041-45W,…Western South Atlantic · Brasil-southeast Coast
- HYDROLANT 2680/212021-10-29 → 2021-11-02Hazardous operations in progress until 27 apr 22 in area bound by 24-37.69S 042-17.96W, 24-35.74S…Western South Atlantic
- HYDROLANT 2646/212021-10-27 → 2021-11-06Hazardous operations 010900Z to 060300Z nov in area bound by 20-37S 040-53W, 20-54S 041-07W, 21-10S 040-36W,…Western South Atlantic · Brazil-southeast Coast
- HYDROLANT 2645/212021-10-27 → 2021-11-20Hazardous operations 0500Z to 1900Z daily 01 thru 20 nov in area bound by 23-01.03S 043-47.33W, 23-10.03S…Western South Atlantic · Brazil-south Coast
- HYDROLANT 2636/212021-10-26 → 2021-10-31Hazardous operations 0900Z to 2100Z daily 26 thru 31 oct in area bound by 05-42.53S 034-45.02W, 06-09.83S…Western South Atlantic · Brazil-northeast Coast
- HYDROLANT 2627/212021-10-25 → 2021-10-31Hazardous operations 300300Z to 302300Z oct in area bound by 32-14.6S 052-10.9W, 32-16.5S 052-02.8W,…Western South Atlantic · Brazil-south Coast
- HYDROLANT 2614/212021-10-23 → 2021-12-01Hazardous operations 280001Z oct to 302359Z nov in area bound by 24-22.0S 043-55.8W, 24-02.8S 043-55.8W,…Western South Atlantic · Brazil-south Coast
- HYDROLANT 2553/212021-10-17 → 2021-10-29Hazardous operations 0500Z to 1900Z daily 22 thru 29 oct in area bound by 23-01.03S 043-47.33W, 23-10.03S…Western South Atlantic · Brazil-south Coast
- HYDROLANT 2552/212021-10-17 → 2021-10-31Hazardous operations 220900Z to 311900Z oct in area bound by 24-31.00S 043-50.90W, 24-18.60S 043-34.25W,…Western South Atlantic · Brazil-south Coast
- HYDROLANT 2530/212021-10-13 → 2021-10-26Hazardous operations 0900Z to 2100Z daily 14 thru 27 oct in area bound by 05-42.53S 034-45.02W, 06-09.83S…Western South Atlantic · Brazil-northeast Coast
- HYDROLANT 2523/212021-10-13 → 2021-10-22Hazardous operations 1000Z to 2100Z daily 18 thru 22 oct in area bound by 05-54.13S 035-10.00W, 05-47.04S…Western South Atlantic · Brazil-northeast Coast
- HYDROLANT 2500/212021-10-09 → 2021-10-14Hazardous operations 141000Z to 142100Z oct in area bound by 05-55.22S 035-09.38W, 05-52.03S 035-06.51W,…Western South Atlantic · Brazil-northeast Coast
- HYDROLANT 2492/212021-10-08 → 2021-10-14Hazardous operations 130900Z to 142100Z oct in area bound by 14-30S 038-30W, 14-15S 038-30W, 14-15S 038-20W,…Western South Atlantic · Brazil-east Coast
- HYDROLANT 2450/212021-10-01 → 2021-10-05Hazardous operations 0900Z to 2000Z daily 04 and 05 oct in area bound by 23-30S 042-40W, 23-10S 042-40W,…Western South Atlantic · Brazil-south Coast
- HYDROLANT 2449/212021-10-01 → 2021-10-04Hazardous operations 041100Z to 041900Z oct in area within 15 miles of 08-00S 034-10WWestern South Atlantic · Brazil-northeast Coast
- HYDROLANT 2431/212021-09-29 → 2021-10-08Hazardous operations 0800Z to 1900Z daily 04 thru 08 oct in area bound by 24-00.00S 046-24.00W, 24-10.00S…Western South Atlantic · Brazil-south Coast
- HYDROLANT 2430/212021-09-29 → 2021-09-29Hazardous operations 0800Z to 1900Z daily 04 thru 08 oct in area bound by 24-00.00S 046-24.00W, 24-10.00S…Western South Atlantic · Brazil-south Coast
- HYDROLANT 2421/212021-09-28 → 2021-10-17Hazardous operations 0001Z to 2359Z daily 03 thru 16 oct in area bound by 24-02.80S 043-55.80W, 24-02.80S…Western South Atlantic · Brazil-south Coast
- HYDROLANT 2415/212021-09-27 → 2021-10-17Hazardous operations 010001Z to 162359Z oct in area bound by 24-30.0S 043-38.0W, 24-21.5S 043-18.0W,…Western South Atlantic · Brazil-south Coast
- HYDROLANT 2414/212021-09-27 → 2021-10-08Hazardous operations 0800Z to 2100Z daily 02 thru 08 oct in area bound by 24-20S 040-32W, 24-30S 040-03W,…Western South Atlantic
- HYDROLANT 2410/212021-09-26 → 2021-10-02Hazardous operations 021100Z to 021900Z oct in area within 15 miles of 12-10S 036-55WWestern South Atlantic · Brazil-east Coast
- HYDROLANT 2409/212021-09-26 → 2021-10-08Hazardous operations 0800Z to 2300Z daily 02 thru 07 oct in area bound by: 24-32S 042-00W, 24-19S 041-11W,…Western South Atlantic
- HYDROLANT 2404/212021-09-26 → 2021-10-01Hazardous operations 011100Z to 011900Z oct in area within 15 miles of 10-05S 035-05WWestern South Atlantic · Brazil-east Coast
- HYDROLANT 2294/212021-09-09 → 2021-09-24Hazardous operations 0900Z to 2100Z daily 10, 13 thru 17 and 20 thru 24 sep in area bound by 05-42.52S…Western South Atlantic · Brazil-northeast Coast
- HYDROLANT 2209/212021-08-28 → 2021-10-03Hazardous operations 02 sep thru 02 oct in area bound by 24-22.0S 043-55.8W, 24-02.8S 043-55.8W, 24-02.8S…Western South Atlantic · Brazil-south Coast
- HYDROLANT 2202/212021-08-27 → 2021-09-02Hazardous operations 010300Z to 012300Z sep in area bound by 32-14.6S 052-10.9W, 32-16.5S 052-02.8W,…Western South Atlantic · Brazil-south Coast
- HYDROLANT 2187/212021-08-25 → 2021-10-01Hazardous operations 300001Z aug to 302359Z sep in area bound by 24-30.0S 043-38.0W, 24-21.5S 043-18.0W,…Western South Atlantic · Brazil-south Coast
- HYDROLANT 2184/212021-08-25 → 2021-08-25Hazardous operations 300001Z to 302359Z aug in area bound by 24-30.0S 043-38.0W, 24-21.5S 043-18.0W,…Western South Atlantic · Brazil-south Coast
- HYDROLANT 2106/212021-08-15 → 2021-08-21Hazardous operations 0900Z to 2130Z daily 20 and 21 aug in area bound by 22-58.72S 042-02.15W, 23-01.00S…Western South Atlantic · Brazil-southeast Coast
- HYDROLANT 2084/212021-08-11 → 2021-08-20Hazardous operations 1100Z to 2030Z daily 16 thru 20 aug in area bound by 05-54.43S 035-10.00W, 05-47.04S…Western South Atlantic · Brazil-northeast Coast
- HYDROLANT 2039/212021-08-05 → 2021-08-20Hazardous operations 1800Z to 2000Z daily 10 thru 20 aug in area bound by 22-57.58S 044-02.25W, 23-02.56S…Western South Atlantic · Brazil-south Coast
- HYDROLANT 1971/212021-07-29 → 2021-08-06Hazardous operations 1800Z to 2000Z daily 03 thru 06 aug in area bound by 22-57.58S 044-02.25W, 23-02.57S…Western South Atlantic · Brazil-south Coast
- HYDROLANT 1930/212021-07-24 → 2021-07-28Hazardous operations 0900Z to 2130Z daily 27 and 28 jul in area bound by 22-58.76S 042-02.17W, 23-01.04S…Western South Atlantic · Brazil-southeast Coast
- HYDROLANT 1907/212021-07-21 → 2021-07-22Hazardous operations 0900Z to 2000Z daily 21 and 22 jul in area bound by 23-58S 044-50W, 23-50S 044-50W,…Western South Atlantic · Brazil-south Coast
- HYDROLANT 1854/212021-07-14 → 2021-08-14Hazardous operations 19 jul thru 13 aug in area bound by 23-27.03S 043-52.03W, 23-30.03S 043-50.03W,…Western South Atlantic · Brazil-south Coast
- HYDROLANT 1684/212021-06-25 → 2021-07-16Hazardous operations 300900Z jun to 160900Z jul in area bound by 23-58S 042-19W, 23-40S 042-19W, 23-40S…Western South Atlantic · Brazil-southeast Coast
- HYDROLANT 1608/212021-06-16 → 2021-06-26Hazardous operations 0800Z to 2100Z daily 21 thru 26 jun in area bound by 24-32S 042-00W, 24-19S 041-11W,…Western South Atlantic · Brazil-southeast Coast
- HYDROLANT 1563/212021-06-11 → 2021-06-16Hazardous operations 160900Z to 162000Z jun in area bound by 23-58S 044-50W, 23-50S 044-50W, 23-50S 044-42W,…Western South Atlantic · Brazil-south Coast
- HYDROLANT 1562/212021-06-11 → 2021-06-16Hazardous operations 161000Z jun to 092100Z jul in area bound by 23-22.30S 043-10.82W, 23-44.93S 043-09.97W,…Western South Atlantic · Brazil-south Coast
- HYDROLANT 1444/212021-05-29 → 2021-06-10Hazardous operations 0800Z to 2100Z daily 03 thru 10 jun in area bound by 24-20S 040-32W, 24-30S 040-03W,…Western South Atlantic
- HYDROLANT 1364/212021-05-20 → 2021-05-29Hazardous operations 0800Z to 0001Z daily 26 thru 28 may in area bound by 21-25.0S 038-44.7W, 20-57.6S…Western South Atlantic · Brazil-southeast Coast
- HYDROLANT 1355/212021-05-19 → 2021-05-28Hazardous operations 240500Z to 282000Z may in area within three miles of 20-57.35S 040-48.82WWestern South Atlantic · Brazil-southeast 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.