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 1038/172017-03-31 → 2017-04-06
    Hazardous operations 030900Z to 060900Z apr in area bound by 25-25.43S 047-17.38W, 25-05.20S 046-48.05W,…
    Western South Atlantic · Brazil-south Coast
  2. HYDROLANT 996/172017-03-28 → 2017-03-31
    Hazardous operations 280900Z to 310300Z mar in areas bound by: a. 25-19.15S 047-21.90W, 25-01.09S…
    Western South Atlantic · Brazil-south Coast
  3. HYDROLANT 961/172017-03-25 → 2017-03-27
    Hazardous operations 271700Z to 272000Z mar in area bound by 10-53.55S 036-48.90W, 10-54.20S 036-49.20W,…
    Western North Atlantic · Brazil-east Coast
  4. HYDROLANT 832/172017-03-15 → 2017-03-21
    Hazardous operations 1600Z to 1800Z daily 20 and 21 mar in area bound by 23-02.03S 043-51.03W, 23-02.00S…
    Western South Atlantic · Brazil-south Coast
  5. HYDROLANT 780/172017-03-09 → 2017-03-25
    Hazardous operations 0830Z to 2030Z daily 15 thru 25 mar in areas: a. bound by 05-42.53S 034-45.02W,…
    Western South Atlantic · Brazil-northeast Coast
  6. HYDROLANT 681/172017-03-02 → 2017-03-07
    Hazardous operations 071000Z to 071400Z mar in area within ten miles of 05-31S 034-49W
    Western South Atlantic · Brazil-northeast Coast
  7. HYDROLANT 619/172017-02-24 → 2017-02-27
    Hazardous operations 240600Z to 270600Z feb in areas bound by: a. 25-11.50S 046-49.13W, 25-01.17S…
    Western South Atlantic · Brazil-south Coast
  8. HYDROLANT 548/172017-02-17 → 2017-02-22
    Hazardous operations 221000Z to 221400Z feb in area within 20 miles of 23-23S 042-06W
    Western South Atlantic · Brazil-southeast Coast
  9. HYDROLANT 534/172017-02-16 → 2017-02-22
    Hazardous operations 212000Z to 220400Z feb in area bound by 24-00S 042-29W, 24-16S 042-02W, 24-33S 042-12W,…
    Western South Atlantic · Brazil-south Coast
  10. HYDROLANT 516/172017-02-15 → 2017-02-20
    Hazardous operations 201500Z to 201900Z feb in area within 20 miles of 24-23S 045-40W
    Western South Atlantic · Brazil-south Coast
  11. HYDROLANT 473/172017-02-11 → 2017-02-16
    Hazardous operations 161700Z to 162000Z feb in area within 20 miles of 23-46S 044-05W
    Western South Atlantic · Brazil-south Coast
  12. HYDROLANT 471/172017-02-10 → 2017-02-15
    Hazardous operations 142100Z to 150300Z feb in area bound by 23-33S 042-58W, 23-20S 042-43W, 23-31S 042-25W,…
    Western South Atlantic · Brazil-south Coast
  13. HYDROLANT 384/172017-02-03 → 2017-02-07
    Hazardous operations 040600Z to 070600Z feb in areas bound by: a. 25-11.50S 046-49.13W, 25-01.17S 046-20.87W
    Western South Atlantic · Brazil-south Coast
  14. HYDROLANT 294/172017-01-27 → 2017-02-02
    Hazardous operations 011400Z to 012359Z feb in area bound by 23-49S 043-10W, 23-49S 042-28W, 24-10S 042-48W,…
    Western South Atlantic · Brazil-south Coast
  15. HYDROLANT 218/172017-01-21 → 2017-01-26
    Hazardous operations
    Western South Atlantic · Brazil-south Coast
  16. HYDROLANT 201/172017-01-19 → 2017-01-25
    Hazardous operations
    Western South Atlantic · Brazil-south Coast
  17. HYDROLANT 200/172017-01-19 → 2017-01-25
    Hazardous operations
    Western South Atlantic · Brazil-south Coast
  18. HYDROLANT 110/172017-01-11 → 2017-01-16
    Hazardous operations
    Western South Atlantic · Brazil-south Coast
  19. HYDROLANT 108/172017-01-10 → 2017-01-14
    Hazardous operations
    Western South Atlantic · Brazil-south Coast
  20. HYDROLANT 97/172017-01-10 → 2017-01-15
    Hazardous operations
    Western South Atlantic · Brazil-south Coast
  21. HYDROLANT 83/172017-01-09 → 2017-01-14
    Hazardous operations
    Western South Atlantic · Brazil-south Coast
  22. HYDROLANT 74/172017-01-08 → 2017-01-13
    Hazardous operations
    Western South Atlantic · Brazil-south Coast
  23. HYDROLANT 64/172017-01-07 → 2017-01-14
    Hazardous operations
    Western South Atlantic · Brazil-south Coast
  24. HYDROLANT 54/172017-01-06 → 2017-01-10
    Hazardous operations
    Western South Atlantic · Brazil-southeast Coast
  25. HYDROLANT 51/172017-01-05 → 2017-01-09
    Hazardous operations
    Western South Atlantic · Brazil-south Coast
  26. HYDROLANT 49/172017-01-05 → 2017-01-11
    Hazardous operations
    Western South Atlantic · Brazil-south Coast
  27. HYDROLANT 3358/162016-12-13 → 2016-12-15
    Hazardous operations
    Western South Atlantic · Brazil-south Coast
  28. HYDROLANT 3337/162016-12-10 → 2016-12-15
    Hazardous operations
    Western South Atlantic · Brazil-southeast Coast
  29. HYDROLANT 3261/162016-12-03 → 2016-12-08
    Hazardous operations
    Western South Atlantic · Brazil-northeast Coast
  30. HYDROLANT 3240/162016-12-02 → 2016-12-09
    Hazardous operations
    Western South Atlantic · Brazil-southeast Coast
  31. HYDROLANT 3222/162016-11-30 → 2016-12-05
    Hazardous operations
    Western South Atlantic · Brazil-northeast Coast
  32. HYDROLANT 3221/162016-11-30 → 2016-12-15
    Hazardous operations
    Western South Atlantic · Brazil-north Coast
  33. HYDROLANT 3174/162016-11-27 → 2016-12-03
    Hazardous operations
    Western South Atlantic · Brazil-southeast Coast
  34. HYDROLANT 3162/162016-11-25 → 2016-12-03
    Hazardous operations
    Western South Atlantic · Brazil-north Coast
  35. HYDROLANT 3153/162016-11-25 → 2016-12-01
    Hazardous operations
    Western South Atlantic · Brazil-southeast Coast
  36. HYDROLANT 3139/162016-11-24 → 2016-12-01
    Hazardous operations
    Western South Atlantic · Brazil-southeast Coast
  37. HYDROLANT 3138/162016-11-24 → 2016-11-29
    Hazardous operations
    Western South Atlantic · Brazil-northeast Coast
  38. HYDROLANT 3137/162016-11-24 → 2016-11-30
    Hazardous operations
    Western South Atlantic · Brazil-southeast Coast
  39. HYDROLANT 3134/162016-11-23 → 2016-12-03
    Hazardous operations
    Western South Atlantic · Brazil-south Coast
  40. HYDROLANT 3082/162016-11-19 → 2016-11-24
    Hazardous operations
    Western South Atlantic · Brazil-northeast Coast
  41. HYDROLANT 3068/162016-11-18 → 2016-11-25
    Hazardous operations
    Western South Atlantic · Brazil-south Coast
  42. HYDROLANT 3067/162016-11-18 → 2016-11-23
    Hazardous operations
    Western South Atlantic · Brazil-south Coast
  43. HYDROLANT 2926/162016-11-05 → 2016-11-10
    Hazardous operations
    Western South Atlantic · Brazil-south Coast
  44. HYDROLANT 2905/162016-11-03 → 2016-11-09
    Hazardous operations
    Western South Atlantic · Brazil-northeast Coast
  45. HYDROLANT 2896/162016-11-03 → 2016-11-08
    Hazardous operations
    Western South Atlantic · Brazil-northeast Coast
  46. HYDROLANT 2694/162016-10-14 → 2016-10-17
    Hazardous operations
    Western South Atlantic · Brazil-north Coast
  47. HYDROLANT 2656/162016-10-12 → 2016-10-21
    Hazardous operations
    Brazil-south Coast
  48. HYDROLANT 2600/162016-10-05 → 2016-10-11
    Hazardous operations
    Brazil-southeast Coast
  49. HYDROLANT 2458/162016-09-21 → 2016-09-30
    Hazardous operations
    Brazil-south Coast
  50. HYDROLANT 2424/162016-09-17 → 2016-09-22
    Hazardous operations
    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.

Military exercises in the South Atlantic Ocean — page 17 · seahazards