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

  1. HYDROLANT 1564/26in force2026-08-13
    Hazardous operations occur daily from August 18 to 20, 0800Z to 2100Z, within ten miles of 25°06'S 041°13'W.
    South Atlantic
  2. HYDROLANT 1462/26in force2026-07-29
    Hazardous operations are occurring off Brazil in a bounded area from August 3 through September 11.
    South Atlantic · Brazil
  3. HYDROLANT 1457/26in force2026-07-29
    Hazardous 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

  1. HYDROLANT 1457/26in force2026-07-29 · 24 d
    Hazardous operations are in progress in the South Atlantic until 060400Z June 27 near 24-39S 042-30W; two-mile berth requested.
    South Atlantic
  2. HYDROLANT 1462/26in force2026-07-29 · 24 d
    Hazardous operations are occurring off Brazil in a bounded area from August 3 through September 11.
    South Atlantic · Brazil
  3. HYDROLANT 1564/26in force2026-08-13 · 9 d
    Hazardous operations occur daily from August 18 to 20, 0800Z to 2100Z, within ten miles of 25°06'S 041°13'W.
    South Atlantic

By year

99
00
01
02
03
04
05
06
07
08
09
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
26

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

  1. HYDROLANT 3125/132013-12-05 → 2013-12-10
    Hazardous operations
    Brazil-east Coast
  2. HYDROLANT 3124/132013-12-05 → 2013-12-11
    Hazardous operations
    Brazil-south Coast
  3. HYDROLANT 3123/132013-12-05 → 2013-12-10
    Hazardous operations
    Brazil-south Coast
  4. HYDROLANT 3112/132013-12-04 → 2013-12-10
    Hazardous operations
    Brazil-south Coast
  5. HYDROLANT 3111/132013-12-04 → 2013-12-09
    Hazardous operations
    Brazil-south Coast
  6. HYDROLANT 3110/132013-12-04 → 2013-12-09
    Gunnery exercises 091600Z to 092000Z dec within ten miles of 05-30S 034-50W
    Brazil-northeast Coast · Gunnery
  7. HYDROLANT 3063/132013-11-30 → 2013-12-05
    Hazardous operations
    Brazil-south Coast
  8. HYDROLANT 3044/132013-11-29 → 2013-12-06
    Hazardous operations
    Brazil-south Coast
  9. HYDROLANT 3043/132013-11-29 → 2013-12-05
    Hazardous operations
    Brazil-south Coast
  10. HYDROLANT 3042/132013-11-29 → 2013-12-04
    Hazardous operations
    Brazil-south Coast
  11. HYDROLANT 3041/132013-11-29 → 2013-12-04
    Hazardous operations
    Brazil-south Coast
  12. HYDROLANT 3040/132013-11-29 → 2013-12-04
    Gunnery exercises 041000Z to 041400Z dec within ten miles of 17-04.0S 038-42.5W
    Brazil-east Coast · Gunnery
  13. HYDROLANT 2968/132013-11-21 → 2013-11-22
    Hazardous operations
    Brazil-southeast Coast
  14. HYDROLANT 2953/132013-11-21 → 2013-11-26
    Gunnery exercises 261300Z to 262000Z nov within five miles of 13-17.7S 038-21.5W
    Brazil-east Coast · Gunnery
  15. HYDROLANT 2933/132013-11-20 → 2013-11-25
    Hazardous operations
    Brazil-south Coast
  16. HYDROLANT 2899/132013-11-17 → 2013-11-23
    Hazardous operations
    Brazil-northeast Coast
  17. HYDROLANT 2870/132013-11-14 → 2013-11-19
    Gunnery exercises 191800Z to 192100Z nov in area bound by 33-50.2S 053-00.5W, 33-34.8S 052-45.4W, 33-28.5S…
    Brazil-south Coast · Gunnery
  18. HYDROLANT 2858/132013-11-13 → 2013-11-19
    Hazardous operations
    Brazil-south Coast
  19. HYDROLANT 2824/132013-11-09 → 2013-11-14
    Gunnery exercises 140800Z to 141200Z nov within ten miles of 05-45S 034-44W
    Brazil-northeast Coast · Gunnery
  20. HYDROLANT 2809/132013-11-08 → 2013-11-13
    Hazardous operations
    Brazil-south Coast
  21. HYDROLANT 2808/132013-11-08 → 2013-11-14
    Gunnery exercises 1200Z to 1800Z daily 13 and 14 nov within ten miles of 05-40S 034-13W
    Brazil-northeast Coast · Gunnery
  22. HYDROLANT 2798/132013-11-07 → 2013-11-11
    Gunnery exercises 111400Z to 112000Z nov within ten miles of 05-40S 034-13W
    Brazil-northeast Coast · Gunnery
  23. HYDROLANT 2787/132013-11-06 → 2013-11-07
    Gunnery exercises 111200Z to 111800Z nov within 15 miles of 06-00S 034-38W
    Brazil-northeast Coast · Gunnery
  24. HYDROLANT 2674/132013-10-25 → 2013-10-31
    Hazardous operations
    Brazil-east Coast
  25. HYDROLANT 2656/132013-10-24 → 2013-10-29
    Hazardous operations
    Brazil-south Coast
  26. HYDROLANT 2642/132013-10-22 → 2013-10-28
    Gunnery exercises 281700Z to 282000Z oct in area bound by 32-58.8S 052-13.1W, 32-39.5S 052-07.2W, 32-36.0S…
    Brazil-south Coast · Gunnery
  27. HYDROLANT 2606/132013-10-19 → 2013-10-25
    Hazardous operations
    Brazil-northeast Coast
  28. HYDROLANT 2594/132013-10-18 → 2013-10-27
    Gunnery exercises 1200Z to 1500Z and 1600Z to 1800Z daily 24 thru 27 oct in area bound by 23-06.93S…
    Brazil-south Coast · Gunnery
  29. HYDROLANT 2544/132013-10-14 → 2013-10-27
    Gunnery exercises 1100Z to 1500Z and 1600Z to 2000Z daily 19 thru 27 oct in area bound by 23-03.73S…
    Brazil-south Coast · Gunnery
  30. HYDROLANT 2493/132013-10-08 → 2013-10-18
    Gunnery exercises 1200Z to 2000Z daily 14 thru 18 oct in area bound by 24-00.00S 046-24.00W, 24-10.00S…
    Brazil-south Coast · Gunnery
  31. HYDROLANT 2438/132013-10-02 → 2013-10-26
    Hazardous operations
    Brazil-south Coast
  32. HYDROLANT 2432/132013-10-02 → 2013-10-02
    Gunnery exercises 1500Z to 0300Z commencing daily 07 thru 25 oct in area bound by 29-20.88S 049-05.88W,…
    Brazil-south Coast · Gunnery
  33. HYDROLANT 2368/132013-09-25 → 2013-09-27
    Gunnery exercises 270900Z to 271500Z sep within ten miles of 05-21.5S 034-58.5W
    Brazil-northeast Coast · Gunnery
  34. HYDROLANT 2230/132013-09-12 → 2013-09-16
    Gunnery exercises 161200Z to 161600Z sep within ten miles of 05-21.5S 034-58.5W
    Brazil-northeast Coast · Gunnery
  35. HYDROLANT 2220/132013-09-11 → 2013-09-20
    Hazardous operations
    Brazil-south Coast
  36. HYDROLANT 2120/132013-08-31 → 2013-09-04
    Gunnery exercises 041800Z to 042000Z sep in area bound by 30-45.8S 050-26.0W, 30-48.9S 050-20.8W, 31-03.5S…
    Brazil-south Coast · Gunnery
  37. HYDROLANT 2119/132013-08-31 → 2013-09-04
    Hazardous operations
    Brazil-south Coast
  38. HYDROLANT 2118/132013-08-31 → 2013-09-05
    Hazardous operations
    Brazil-south Coast
  39. HYDROLANT 2097/132013-08-29 → 2013-10-11
    Gunnery exercises 0800Z to 2100Z daily 02 sep thru 11 oct: a. in area bound by 05-42.53S 034-45.02W,…
    Brazil-northeast Coast · Gunnery
  40. HYDROLANT 2067/132013-08-24 → 2013-08-27
    Hazardous operations
    Brazil-northeast Coast
  41. HYDROLANT 2066/132013-08-24 → 2013-09-17
    Hazardous operations
    Brazil-south Coast
  42. HYDROLANT 2030/132013-08-20 → 2013-08-23
    Gunnery exercises 231600Z to 232000Z aug within five miles of 05-30S 034-50W
    Brazil-northeast Coast · Gunnery
  43. HYDROLANT 1805/132013-07-25 → 2013-07-31
    Hazardous operations
    Brazil-south Coast
  44. HYDROLANT 1804/132013-07-25 → 2013-07-30
    Hazardous operations
    Brazil-south Coast
  45. HYDROLANT 1803/132013-07-25 → 2013-07-31
    Hazardous operations
    Brazil-south Coast
  46. HYDROLANT 1792/132013-07-24 → 2013-08-02
    Hazardous operations
    Brazil-southeast Coast
  47. HYDROLANT 1791/132013-07-24 → 2013-07-29
    Hazardous operations
    Brazil-south Coast
  48. HYDROLANT 1790/132013-07-24 → 2013-07-30
    Hazardous operations
    Brazil-south Coast
  49. HYDROLANT 1607/132013-07-04 → 2013-07-09
    Gunnery exercises 091100Z to 091500Z jul within ten miles of 16-15S 037-00W
    Brazil-east Coast · Gunnery
  50. HYDROLANT 1574/132013-06-29 → 2013-07-04
    Hazardous operations
    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.

Military exercises in the South Atlantic Ocean — page 23 · seahazards