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 3891/172017-12-02 → 2017-12-02Hazardous operations in progress until 030800Z dec in areas bound by: a. 25-11.49S 046-49.14W, 25-01.17S…Western South Atlantic · Brazil-south Coast
- HYDROLANT 3878/172017-12-01 → 2017-12-06Hazardous operations 061000Z to 061700Z dec in area bound by 30-47.6S 050-27.0W, 30-53.5S 050-16.5W,…Western South Atlantic · Brazil-south Coast
- HYDROLANT 3866/172017-11-30 → 2017-12-07Hazardous operations 041000Z to 072000Z dec in area bound by 23-03.08S 043-58.08W, 23-03.15S 044-01.40W,…Western South Atlantic · Brazil-south Coast
- HYDROLANT 3850/172017-11-28 → 2017-12-09Hazardous operations 040001Z to 082359Z dec in area bound by 02-18.93S 044-22.02W, 02-13.79S 044-22.07W,…Western South Atlantic · Brazil-north Coast
- HYDROLANT 3806/172017-11-25 → 2017-11-30Hazardous operations 301600Z to 301900Z nov in area within ten miles of 23-18.98S 043-08.82WWestern South Atlantic · Brazil-south Coast
- HYDROLANT 3805/172017-11-25 → 2017-11-28Hazardous operations 250800Z to 280800Z nov in areas bound by: a. 25-11.49S 046-49.14W, 25-01.17S…Western South Atlantic · Brazil-south Coast
- HYDROLANT 3790/172017-11-24 → 2017-11-27Hazardous operations 220800Z to 250800Z nov in areas bound by: a. 25-11.49S 046-49.14W, 25-01.17S…Western South Atlantic · Brazil-south Coast
- HYDROLANT 3789/172017-11-24 → 2017-11-29Hazardous operations 291100Z to 291500Z nov in area within five miles of 05-45S 034-45WWestern South Atlantic · Brazil-northeast Coast
- HYDROLANT 3754/172017-11-22 → 2017-11-30Hazardous operations 1000Z to 1900Z daily 27 thru 30 nov in area bound by 32-16S 052-07W, 32-26S 052-14W,…Western South Atlantic · Brazil-south Coast
- HYDROLANT 3753/172017-11-21 → 2017-11-25Hazardous operations 220200Z to 250200Z nov in areas bound by: a. 25-11.49S 046-49.14W, 25-01.17S…Western South Atlantic · Brazil-south Coast
- HYDROLANT 3752/172017-11-21 → 2017-11-25Hazardous operations 220800Z to 250800Z nov in areas bound by: a. 25-11.49S 046-49.14W, 25-01.17S…Western South Atlantic · Brazil-south Coast
- HYDROLANT 3725/172017-11-19 → 2017-11-22Hazardous operations 190200Z to 220200Z nov in areas bound by: a. 25-11.49S 046-49.14W, 25-01.17S…Western South Atlantic · Brazil-south Coast
- HYDROLANT 3717/172017-11-18 → 2017-11-28Hazardous operations 1200Z to 2000Z daily 23 thru 28 nov in area within eight miles of 05-44S 034-53WWestern South Atlantic · Brazil-northeast Coast
- HYDROLANT 3693/172017-11-16 → 2017-11-23Hazardous operations 1500Z to 2000Z daily 21 thru 23 nov in area bound by 32-16S 052-07W, 32-26S 052-14W,…Western South Atlantic · Brazil-south Coast
- HYDROLANT 3608/172017-11-08 → 2017-11-14Hazardous operations 131000Z to 142000Z nov in area bound by 23-03.05S 043-58.05W, 23-03.09S 044-01.24W,…Western South Atlantic · Brazil-south Coast
- HYDROLANT 3604/172017-11-08 → 2017-11-08Hazardous operations 1000Z to 2000Z daily 13 and 14 nov in area bound by 23-03.08S 043-58.08W, 23-03.16S…Western South Atlantic · Brazil-south Coast
- HYDROLANT 3602/172017-11-08 → 2017-11-14Hazardous operations 1000Z to 2100Z daily 13 and 14 nov in area bound by 05-54.13S 035-10.00W, 05-47.04S…Western South Atlantic · Brazil-northeast Coast
- HYDROLANT 3570/172017-11-04 → 2017-11-07Hazardous operations 040900Z to 070900Z nov in areas bound by: a. 25-19.15S 047-21.90W, 25-01.09S…Western South Atlantic · Brazil-south Coast
- HYDROLANT 3569/172017-11-04 → 2017-11-13Hazardous operations 1100Z to 1800Z daily 09 thru 13 nov in area within eight miles of 05-35S 034-57WWestern South Atlantic · Brazil-northeast Coast
- HYDROLANT 3492/172017-10-28 → 2017-11-02Gunnery exercises 020700Z to 021800Z nov in area bound by 22-45S 014-30E, 22-45S 014-45E, 22-30S 013-45E,…Eastern South Atlantic · Namibia
- HYDROLANT 3483/172017-10-27 → 2017-10-30Hazardous operations 270800Z to 300800Z oct in areas bound by: a. 25-11.50S 046-49.13W, 25-01.17S…Western South Atlantic · Brazil-south Coast
- HYDROLANT 3461/172017-10-25 → 2017-10-30Hazardous operations 301000Z to 302000Z oct in area bound by 32-12.45S 052-08.42W, 32-12.10S 052-09.19W,…Western South Atlantic · Brazil-south Coast
- HYDROLANT 3441/172017-10-24 → 2017-10-26Hazardous operations 250900Z to 280900Z oct in areas bound by: a. 25-11.50S 046-49.13W, 25-01.17S…Western South Atlantic · Brazil-south Coast
- HYDROLANT 3351/172017-10-19 → 2017-10-26Hazardous operations 1100Z to 1500Z daily 24 thru 26 oct in area within eight miles of 05-35S 034-57WWestern South Atlantic · Brazil-northeast Coast
- HYDROLANT 3335/172017-10-18 → 2017-10-27Hazardous operations 231100Z to 272100Z oct in areas bound by: a. 23-27.03S 043-52.03W, 23-30.03S…Western South Atlantic · Brazil-south Coast
- HYDROLANT 3334/172017-10-18 → 2017-10-27Hazardous operations 0900Z to 1700Z daily 23 thru 27 oct in area bound by 24-01.04S 046-23.92W, 24-10.00S…Western South Atlantic · Brazil-south Coast
- HYDROLANT 3310/172017-10-16 → 2017-10-20Hazardous operations 171000Z to 202000Z oct in area bound by 23-03.05S 043-58.05W, 23-03.10S 044-01.25W,…Western South Atlantic · Brazil-south Coast
- HYDROLANT 3307/172017-10-16 → 2017-10-17Hazardous operations 171000Z to 171400Z oct in area bound by 21-26.40S 034-51.85W, 21-47.05S 034-52.00W,…Western South Atlantic
- HYDROLANT 3257/172017-10-12 → 2017-10-17Hazardous operations 170800Z to 171200Z oct in area bound by 21-26.40S 034-51.85W, 21-47.05S 034-52.00W,…Western South Atlantic
- HYDROLANT 3255/172017-10-12 → 2017-10-16Hazardous operations 171000Z to 202000Z oct in area bound by 23-03.08S 043-58.08W, 23-03.08S 044-04.00W,…Western South Atlantic · Brazil-south Coast
- HYDROLANT 3252/172017-10-11 → 2017-10-18Hazardous operations 1000Z to 1900Z daily 16 thru 20 oct in area bound by 32-16S 052-07W, 32-23S 051-56W,…Western South Atlantic · Brazil-south Coast
- HYDROLANT 3224/172017-10-10 → 2017-10-13Hazardous operations 100900Z to 130900Z oct in areas bound by: a. 25-11.50S 046-49.13W, 25-01.17S…Western South Atlantic · Brazil-south Coast
- HYDROLANT 3199/172017-10-07 → 2017-10-13Hazardous operations 131300Z to 131700Z oct in area within eight miles of 05-35S 034-57WWestern South Atlantic · Brazil-northeast Coast
- HYDROLANT 3174/172017-10-06 → 2017-10-10Hazardous operations 101300Z to 101700Z oct in area within eight miles of 05-35S 034-57WWestern South Atlantic · Brazil-northeast Coast
- HYDROLANT 3166/172017-10-05 → 2017-10-06Hazardous operations 1300Z to 1700Z daily 10 thru 13 oct in area within eight miles of 05-35S 034-57WWestern South Atlantic · Brazil-northeast Coast
- HYDROLANT 3162/172017-10-04 → 2017-10-08Hazardous operations 050900Z to 080900Z oct in areas bound by: a. 25-11.48S 046-49.13W, 25-01.17S…Western South Atlantic · Brazil-south Coast
- HYDROLANT 3147/172017-10-04 → 2017-10-04Hazardous operations 040900Z to 070900Z oct in areas bound by: a. 25-11.48S 046-49.13W, 25-01.17S…Western South Atlantic · Brazil-south Coast
- HYDROLANT 3133/172017-10-02 → 2017-10-06Hazardous operations 030900Z to 060900Z oct in areas bound by: a. 25-11.48S 046-49.13W, 25-01.17S…Western South Atlantic · Brazil-south Coast
- HYDROLANT 3129/172017-10-02 → 2017-10-27Hazardous operations 0830Z to 2030Z daily 02 thru 27 oct in area bound by 05-42.53S 034-45.02W, 05-56.88S…Western South Atlantic · Brazil-northeast Coast
- HYDROLANT 3112/172017-09-30 → 2017-10-02Hazardous operations 010900Z to 040900Z oct in areas bound by: a. 25-11.48S 046-49.13W, 25-01.17S…Western South Atlantic · Brazil-south Coast
- HYDROLANT 3051/172017-09-26 → 2017-09-27Hazardous operations in progress until 270900Z sep in areas bound by: a. 25-11.48S 046-49.13W, 25-01.17S…Western South Atlantic · Brazil-south Coast
- HYDROLANT 3035/172017-09-26 → 2017-09-30Hazardous operations 270900Z to 300900Z sep in areas bound by: a. 25-11.48S 046-49.15W, 25-01.17S…Western South Atlantic · Brazil-south Coast
- HYDROLANT 3028/172017-09-25 → 2017-09-29Hazardous operations 260900Z to 290900Z sep in areas bound by: a. 25-11.50S 046-49.13W, 25-01.17S…Western South Atlantic · Brazil-south Coast
- HYDROLANT 3027/172017-09-25 → 2017-09-26Hazardous operations in progress until 270900Z oct in areas bound by: a. 25-11.48S 046-49.15W, 25-01.17S…Western South Atlantic · Brazil-south Coast
- HYDROLANT 3002/172017-09-24 → 2017-09-29Hazardous operations 291100Z to 291500Z sep in area within eight miles of 05-35S 034-49WWestern South Atlantic · Brazil-northeast Coast
- HYDROLANT 2999/172017-09-24 → 2017-09-25Hazardous operations 240900Z to 270900Z sep in areas bound by: a. 25-11.48S 046-49.15W, 25-01.17S…Western South Atlantic · Brazil-south Coast
- HYDROLANT 2975/172017-09-22 → 2017-10-01Hazardous operations 1000Z to 2100Z daily 27 sep thru 01 oct in area bound by 05-54.12S 035-09.96W,…Western South Atlantic · Brazil-northeast Coast
- HYDROLANT 2957/172017-09-21 → 2017-09-22Hazardous operations 1000Z to 2100Z daily 27 sep thru 01 oct in area bound by 05-54.12S 035-09.96W,…Western South Atlantic · Brazil-northeast Coast
- HYDROLANT 2955/172017-09-21 → 2017-09-27Hazardous operations 271300Z to 271900Z sep in area bound by 23-02.02S 043-36.03W, 23-13.05S 043-56.92W,…Western South Atlantic · Brazil-south Coast
- HYDROLANT 2954/172017-09-21 → 2017-09-27Hazardous operations 0900Z to 1700Z daily 27 thru 29 sep in area bound by 24-00.00S 046-24.00W, 24-10.00S…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.