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 1073/152015-05-03 → 2015-05-07Hazardous operationsBrazil-southeast Coast
- HYDROLANT 1072/152015-05-03 → 2015-05-07Hazardous operationsBrazil-south Coast
- HYDROLANT 1071/152015-05-03 → 2015-05-16Hazardous operations DNC 01Brazil-south Coast
- HYDROLANT 928/152015-04-18 → 2015-04-25Hazardous operationsBrazil-northeast Coast
- HYDROLANT 799/152015-04-06 → 2015-04-15Hazardous operationsBrazil-east Coast
- HYDROLANT 698/152015-03-24 → 2015-03-30Hazardous operationsBrazil-east Coast
- HYDROLANT 506/152015-03-01 → 2015-03-06Hazardous operationsBrazil-northeast Coast
- HYDROLANT 466/152015-02-25 → 2015-03-27Hazardous operationsBrazil-northeast Coast
- HYDROLANT 425/152015-02-19 → 2015-02-24Hazardous operationsBrazil-south Coast
- HYDROLANT 402/152015-02-16 → 2015-02-20Hazardous operationsWestern South Atlantic · Brazil-east Coast
- HYDROLANT 210/152015-01-25 → 2015-01-29Hazardous operationsBrazil-south Coast
- HYDROLANT 209/152015-01-25 → 2015-01-30Hazardous operationsBrazil-south Coast
- HYDROLANT 208/152015-01-25 → 2015-01-28Hazardous operationsBrazil-south Coast
- HYDROLANT 174/152015-01-20 → 2015-01-26Hazardous operationsBrazil-east Coast
- HYDROLANT 122/152015-01-15 → 2015-01-20Hazardous operationsBrazil-south Coast
- HYDROLANT 121/152015-01-15 → 2015-01-20Hazardous operationsBrazil-south Coast
- HYDROLANT 120/152015-01-15 → 2015-01-19Hazardous operationsWestern South Atlantic · Brazil-south Coast
- HYDROLANT 94/152015-01-12 → 2015-01-17Hazardous operationsBrazil-south Coast
- HYDROLANT 93/152015-01-12 → 2015-01-16Hazardous operationsBrazil-east Coast
- HYDROLANT 91/152015-01-12 → 2015-01-16Hazardous operationsBrazil-southeast Coast
- HYDROLANT 3023/142014-12-11 → 2014-12-16Brazil-southeast coast hazardous operations
- HYDROLANT 3010/142014-12-10 → 1204-12-13Hazardous operationsBrazil-east Coast
- HYDROLANT 2984/142014-12-06 → 2014-12-11Hazardous operationsBrazil-south Coast
- HYDROLANT 2982/142014-12-06 → 2014-12-10Hazardous operationsBrazil-southeast Coast
- HYDROLANT 2958/142014-12-04 → 2014-12-11Hazardous operationsBrazil-northeast Coast
- HYDROLANT 2955/142014-12-04 → 2014-12-10Hazardous operationsBrazil-southeast Coast
- HYDROLANT 2954/142014-12-04 → 2014-12-11Hazardous operationsBrazil-northeast Coast
- HYDROLANT 2946/142014-12-03 → 2014-12-08Hazardous operationsBrazil-east Coast
- HYDROLANT 2945/142014-12-03 → 2014-12-08Hazardous operationsBrazil-south Coast
- HYDROLANT 2941/142014-12-02 → 2014-12-04Hazardous operationsBrazil-east Coast
- HYDROLANT 2923/142014-12-01 → 2014-12-04Hazardous operationsBrazil-northeast Coast
- HYDROLANT 2922/142014-12-01 → 2014-12-04Hazardous operationsBrazil-northeast Coast
- HYDROLANT 2869/142014-11-26 → 2014-11-26Hazardous operationsBrazil-north Coast
- HYDROLANT 2868/142014-11-26 → 2014-12-02Hazardous operationsBrazil-south Coast
- HYDROLANT 2783/142014-11-17 → 2014-11-23Hazardous operationsBrazil-northeast Coast
- HYDROLANT 2756/142014-11-15 → 2014-11-20Hazardous operationsBrazil-east Coast
- HYDROLANT 2731/142014-11-13 → 2014-11-17Hazardous operationsBrazil-northeast Coast
- HYDROLANT 2730/142014-11-13 → 2014-11-17Hazardous operationsBrazil-northeast Coast
- HYDROLANT 2722/142014-11-12 → 2014-11-18Hazardous operationsBrazil-south Coast
- HYDROLANT 2721/142014-11-12 → 2014-11-15Hazardous operationsBrazil-south Coast
- HYDROLANT 2672/142014-11-06 → 2014-11-11Hazardous operationsBrazil-south Coast
- HYDROLANT 2665/142014-11-05 → 2014-11-11Hazardous operationsBrazil-south Coast
- HYDROLANT 2526/142014-10-17 → 2014-10-23Hazardous operationsBrazil-northeast Coast
- HYDROLANT 2525/142014-10-17 → 2014-10-23Hazardous operationsBrazil-southeast Coast
- HYDROLANT 2524/142014-10-17 → 2014-10-23Hazardous operationsBrazil-southeast Coast
- HYDROLANT 2470/142014-10-11 → 2014-10-17Hazardous operationsBrazil-east Coast
- HYDROLANT 2363/142014-10-01 → 2014-10-10Hazardous operationsBrazil-south Coast
- HYDROLANT 2341/142014-09-28 → 2014-10-03Hazardous operationsBrazil-northeast Coast
- HYDROLANT 2277/142014-09-20 → 2014-09-26Hazardous operationsBrazil-southeast Coast
- HYDROLANT 2249/142014-09-17 → 2014-09-23Hazardous operationsBrazil-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.