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 · 25 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 913/062006-05-13 → 2006-05-19
    Gunnery exercises 182100Z to 190100Z may in area bound by 01-25S 041-37W, 01-11S 041-59W, 00-54S 041-48W,…
  2. HYDROLANT 885/062006-05-09 → 2006-05-16
    Gunnery exercises 1100Z to 1930Z daily 11 thru 16 may in area bound by 05-52.8S 035-06.5W, 05-50.0S…
  3. HYDROLANT 824/062006-04-29 → 2006-05-04
    Gunnery exercises 031700Z to 032300Z may in area bound by 18-47S 038-24W, 18-29S 038-20W, 18-35S 037-48W,…
  4. HYDROLANT 805/062006-04-27 → 2006-05-03
    Gunnery exercises 022130Z to 030100Z may in area bound by 21-57S 039-07W, 21-43S 039-04W, 21-49S 038-32W,…
  5. HYDROLANT 804/062006-04-27 → 2006-05-03
    Gunnery exercises 1030Z to 2100Z daily 02 and 03 may within ten miles of 14-00S 038-00W
  6. HYDROLANT 750/062006-04-20 → 2006-04-21
    Hazardous operations 18 thru 25 apr in area bound by 22-15.75S 040-35.87W, 22-36.38S 040-00.85W, 22-34.73S…
  7. HYDROLANT 749/062006-04-20 → 2006-04-21
    Hazardous operations 18 thru 25 apr daily in area bound by 19-52.30S 039-40.80W, 22-01.10S 039-38.62W,…
  8. HYDROLANT 652/062006-04-03 → 2006-04-12
    Gunnery exercises 1100Z to 1930Z daily 08 thru 12 apr in area bound by 05-52.8S 035-06.5W, 05-50.0S…
  9. HYDROLANT 648/062006-04-01 → 2006-04-06
    Gunnery exercises 060800Z to 061200Z apr in area bound by 20-57S 031-35W, 21-07S 031-33W, 20-51S 031-19W,…
  10. HYDROLANT 647/062006-04-01 → 2006-04-06
    Gunnery exercises 060800Z to 061200Z apr in area bound by 20-58S 031-50W, 21-00S 032-05W, 21-12S 031-46W,…
  11. HYDROLANT 646/062006-04-01 → 2006-04-06
    Gunnery exercises 060800Z to 061200Z apr in area bound by 21-04S 032-34W, 21-17S 032-31W, 21-01S 032-18W,…
  12. HYDROLANT 645/062006-04-01 → 2006-04-06
    Gunnery exercises 052000Z to 060001Z apr in area bound by 21-11S 033-05W, 21-25S 033-02W, 21-14S 033-20W,…
  13. HYDROLANT 621/062006-03-30 → 2006-04-03
    Gunnery exercises 031700Z to 032000Z apr in area bound by 25-08.0S 047-36.5W, 25-50.0S 047-43.0W, 25-49.0S…
  14. HYDROLANT 595/062006-03-25 → 2006-04-15
    Hazardous operations 1000Z to 2030Z daily 30 mar thru 15 apr in areas bound by: a. 29-20.0S 049-05.0W,…
  15. HYDROLANT 576/062006-03-23 → 2006-03-31
    Hazardous operations 1200Z to 1830Z daily 27 and 31 mar within 1.5 miles of 02-17S 044-21W
  16. HYDROLANT 528/062006-03-17 → 2006-03-21
    Gunnery exercises 211100Z to 211400Z mar within six miles of 13-30S 038-00W
  17. HYDROLANT 440/062006-03-03 → 2006-04-30
    Gunnery exercises in progress 0900Z to 2000Z daily until 30 apr in: a. area bound by 05-42.53S 034-45.02W,…
  18. HYDROLANT 280/062006-02-10 → 2006-03-03
    Gunnery exercises 0900Z to 2000Z daily 15 feb thru 03 mar in: a. area bound by 05-42.53S 034-45.02W,…
  19. HYDROLANT 275/062006-02-09 → 2006-02-14
    Gunnery exercises 140800Z to 142200Z feb in area bound by 23-50.00S 043-16.80W, 24-00.00S 043-05.50W,…
  20. HYDROLANT 241/062006-02-03 → 2006-02-08
    Gunnery exercises 080800Z to 081500Z feb in area bound by 23-50.0S 043-16.8W, 24-00.0S 043-05.5W, 23-38.7S…
  21. HYDROLANT 167/062006-01-26 → 2006-02-02
    Hazardous operations 1200Z to 1800Z daily 30 jan thru 02 feb in area bound by 12-45S 038-20W, 13-00S…
  22. HYDROLANT 140/062006-01-22 → 2006-01-26
    Gunnery exercises 261500Z to 262000Z jan in area bound by 19-41S 038-18W, 20-02S 037-53W, 20-32S 038-21W,…
  23. HYDROLANT 88/062006-01-14 → 2006-01-19
    Hazardous operations 191000Z to 191430Z jan in area bound by 15-56S 037-47W, 15-56S 037-22W, 16-16S 037-23W,…
  24. HYDROLANT 69/062006-01-11 → 2006-01-12
    Hazardous operations 121100Z to 122100Z jan in area bound by 12-45S 038-20W, 13-00S 038-00W, 13-40S 038-00W,…
  25. HYDROLANT 63/062006-01-11 → 2006-01-16
    Hazardous operations 161200Z to 161800Z jan in area bound by 12-45S 038-20W, 13-00S 038-00W, 13-40S 038-00W,…
  26. HYDROLANT 56/062006-01-10 → 2006-01-11
    Hazardous operations 1200Z to 1800Z daily 09 thru 11 jan in area bound by 12-45S 038-20W, 13-00S 038-00W,…
  27. HYDROLANT 2359/052005-12-17 → 2005-12-23
    Gunnery exercises 220900Z to 222000Z and 230900Z to 231400Z dec in area bound by 23-50.00S 043-16.80W,…
  28. HYDROLANT 2319/052005-12-10 → 2005-12-16
    Hazardous operations: a. 151100Z to 152000Z dec within ten miles of 13-18S 037-42W
  29. HYDROLANT 2308/052005-12-09 → 2005-12-14
    Hazardous operations 141500Z to 142100Z dec in area bound by 23-50.0S 043-16.8W, 24-00.0S 043-05.5W,…
  30. HYDROLANT 2283/052005-12-06 → 2005-12-08
    Hazardous operations 081200Z to 081500Z dec within eight miles of 23-27S 043-09W
  31. HYDROLANT 2181/052005-11-25 → 2005-11-30
    Hazardous operations 301100Z to 301500Z in area bound by 07-36.0S 034-49.4W, 07-42.4S 034-44.3W 07-33.5S…
  32. HYDROLANT 2163/052005-11-23 → 2005-11-24
    Gunnery exercises 281700Z to 282000Z nov within ten miles of 09-14.5S 035-03.0W
  33. HYDROLANT 2071/052005-11-11 → 2005-11-16
    Hazardous operations 161100Z to 161500Z nov in area bound by 07-36.0S 034-49.4W, 07-42.4S 034-44.3W,…
  34. HYDROLANT 2066/052005-11-10 → 2005-11-18
    Gunnery exercises 1100Z to 2000Z daily 13 and 18 nov in area bound by 02-16S 031-45W, 01-50S 032-16W, 00-16N…
  35. HYDROLANT 2058/052005-11-09 → 2005-11-18
    Hazardous operations 0900Z to 2000Z daily in progress until 18 nov: a. in area bound by 05-42.53S…
  36. HYDROLANT 1998/052005-11-02 → 2005-11-20
    Hazardous operations as follows: a. 1600Z to 2100Z daily 07 and 16 nov in area bound by 22-58.72S…
  37. HYDROLANT 1954/052005-10-27 → 2005-12-16
    Hazardous operations 1100Z to 2030Z daily 01 nov thru 16 dec in areas bound by: a. 29-20.0S 049-05.0W,…
  38. HYDROLANT 1947/052005-10-26 → 2005-10-31
    Hazardous operations 311300Z to 311600Z oct within ten miles of 14-30S 038-35W
  39. HYDROLANT 1944/052005-10-25 → 2005-11-01
    Hazardous operations 1200Z to 1930Z daily 30 oct thru 01 nov in area bound by 05-52.8S 035-06.5W, 05-50.0S…
  40. HYDROLANT 1924/052005-10-21 → 2005-10-26
    Gunnery exercises 260900Z to 261300Z oct in area bound by 23-50S 043-16.8W, 24-00S 043-05.5W, 23-38.7S…
  41. HYDROLANT 1895/052005-10-17 → 2005-10-23
    Hazardous operations 1500Z to 1700Z daily 22 and 23 oct in area bound by 23-02S 043-36W, 23-03S 043-35W,…
  42. HYDROLANT 1881/052005-10-15 → 2005-10-18
    Hazardous operations 171400Z to 182000Z oct within ten miles of 32-39S 051-50W
  43. HYDROLANT 1865/052005-10-12 → 2005-11-09
    Hazardous operations 0900Z to 2000Z daily 17 oct thru 11 nov: a. in area bound by 05-42.53S 034-45.02W,…
  44. HYDROLANT 1794/052005-10-01 → 2005-10-06
    Hazardous operations 061400Z to 061700Z oct within ten miles of 05-27.5S 034-55.0W
  45. HYDROLANT 1779/052005-09-29 → 2005-10-05
    Hazardous operations: a. 041500Z to 042100Z oct in area bound by 23-50.0S 043-16.8W, 24-00.0S 043-05.5W,…
  46. HYDROLANT 1767/052005-09-28 → 2005-10-03
    Hazardous operations 031630Z to 031730Z oct in area bound by 20-54.8S 040-22.6W, 20-59.8S 040-23.8W,…
  47. HYDROLANT 1727/052005-09-22 → 2005-09-29
    Hazardous operations 1100Z to 1900Z daily 27 and 29 sep in area bound by 00-30S 030-20W, 00-40S 030-10W,…
  48. HYDROLANT 1689/052005-09-16 → 2005-09-22
    Hazardous operations 0930Z to 2130Z daily 21 and 22 sep in area bound by 22-58.7S 042-02.2W, 23-01.0S…
  49. HYDROLANT 1675/052005-09-14 → 2005-09-22
    Hazardous operations 190900Z to 222100Z sep within 70 miles of: a. 25-39.5S 042-01.2W
  50. HYDROLANT 1658/052005-09-12 → 2005-09-18
    Hazardous operations 1500Z to 1700Z daily 17 and 18 sep in area bound by 23-03.05S 043-35.05W, 23-02.05S…

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 36 · seahazards