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 899/072007-05-29 → 2007-06-03
    Hazardous operations 030001Z to 030600Z jun in area bound by 23-29.0S 042-47.2W, 23-24.0S 042-04.3W,…
  2. HYDROLANT 803/072007-05-13 → 2007-05-16
    Hazardous operations 140600Z to 180600Z may in area bound by 08-56S 002-40W, 09-35S 003-08W, 13-18S 001-20E,…
  3. HYDROLANT 759/072007-05-06 → 2007-05-10
    Gunnery exercises 101600Z to 102100Z may in area bound by 39-51S 060-30W, 39-18S 059-20W, 40-00S 059-05W,…
  4. HYDROLANT 738/072007-05-03 → 2007-05-08
    Gunnery exercises 081100Z to 081400Z may in area bound by 00-02S 045-05W, 00-17S 045-01W, 00-12S 044-34W,…
  5. HYDROLANT 737/072007-05-03 → 2007-05-08
    Gunnery exercises 071200Z to 071500Z and 071600Z to 072100Z may in area bound by 40-00S 060-22W, 39-27S…
  6. HYDROLANT 731/072007-05-02 → 2007-05-30
    Gunnery exercises 0900Z to 2000Z daily 07 may thru 01 jun: a. in area bound by 05-42.53S 034-45.02W,…
  7. HYDROLANT 730/072007-05-02 → 2007-05-07
    Gunnery exercises 071030Z to 071400Z may in area bound by 01-30S 041-59W, 01-12S 041-40W, 01-27S 041-20W,…
  8. HYDROLANT 679/072007-04-24 → 2007-04-29
    Hazardous operations 291030Z to 291400Z apr in area bound by 14-41S 037-23W, 14-35S 037-42W, 15-01S 037-51W,…
  9. HYDROLANT 671/072007-04-23 → 2007-04-29
    Hazardous operations 282100Z to 290400Z apr in area bound by 31-30S 049-58W, 31-50S 049-16W, 32-43S 049-50W,…
  10. HYDROLANT 658/072007-04-21 → 2007-04-26
    Hazardous operations 260900Z to 261500Z apr within ten miles of 21-06S 032-30W
  11. HYDROLANT 612/072007-04-14 → 2007-04-19
    Hazardous operations 192000Z to 192100Z apr in area bound by 23-46.33S 042-10.32W, 24-18.43S 042-10.65W,…
  12. HYDROLANT 544/072007-04-05 → 2007-04-13
    Hazardous operations 0900Z to 1830Z daily 10 thru 13 apr vicinity 02-17S 044-21W
  13. HYDROLANT 508/072007-03-30 → 2007-03-04
    Hazardous operations 041000Z to 041430Z apr in area between 23-55S 24-12S 042-38W 043-00W
  14. HYDROLANT 493/072007-03-28 → 2007-04-02
    Gunnery exercises 021800Z to 022000Z apr in area bound by 25-58.00S 047-36.30W, 25-50.00S 047-43.00W,…
  15. HYDROLANT 342/072007-03-04 → 2007-03-09
    Gunnery exercises 082300Z to 090130Z mar in area bound by 38-38S 057-36W, 38-46S 057-30W, 38-58S 057-50W,…
  16. HYDROLANT 321/072007-03-02 → 2007-03-06
    Gunnery exercises 061100Z to 062000Z mar within eight miles of 28-19.20S 048-22.50W
  17. HYDROLANT 111/072007-01-19 → 2007-01-24
    Hazardous operations 241000Z to 241600Z jan within 30 miles of 13-23.6S 037-05.2W
  18. HYDROLANT 99/072007-01-18 → 2007-01-23
    Hazardous operations 231400Z to 232130Z jan in area bound by 10-03S 035-35W, 10-18S 034-53W, 11-12S 035-15W,…
  19. HYDROLANT 98/072007-01-18 → 2007-01-24
    Hazardous operations 232030Z to 240230Z jan within 30 miles of 11-34S 035-50W
  20. HYDROLANT 62/072007-01-12 → 2007-01-18
    Hazardous operations 171400Z to 172300Z jan in area bound by 10-14S 035-46W, 09-29S 035-05W, 09-57S 034-36W,…
  21. HYDROLANT 24/072007-01-05 → 2007-01-10
    Hazardous operations 100830Z to 101500Z jan in area bound by 19-34.0S 038-34.0W, 19-40.0S 038-03.3W,…
  22. HYDROLANT 17/072007-01-04 → 2007-01-10
    Hazardous operations 092100Z to 100200Z jan in area bound by 21-28.00S 039-12.83W, 21-38.00S 038-48.00W,…
  23. HYDROLANT 16/072007-01-04 → 2007-01-09
    Hazardous operations 090800Z to 091600Z jan in area bound by 23-23S 040-32W, 22-53S 040-04W, 23-13S 039-39W,…
  24. HYDROLANT 2056/062006-11-12 → 2006-11-18
    Hazardous operations 172000Z to 180600Z nov in area bound by 31-35.5S 050-34.0W, 31-48.0S 050-16.0W,…
  25. HYDROLANT 1976/062006-10-28 → 2006-11-02
    Hazardous operations 021600Z to 022130Z nov in area bound by 34-25.0S 052-34.0W, 34-48.0S 051-57.5W,…
  26. HYDROLANT 1975/062006-10-28 → 2006-11-02
    Hazardous operations 012300Z to 020159Z nov in area bound by 36-17.0S 051-57.0W, 35-42.0S 052-25.0W,…
  27. HYDROLANT 1891/062006-10-14 → 2006-10-19
    Gunnery exercises 191300Z to 192100Z oct within 15 miles of 07-35S 033-35W
  28. HYDROLANT 1862/062006-10-11 → 2006-10-16
    Hazardous operations 1200Z to 1600Z and 1800Z to 2200Z daily 13 thru 16 oct in area bound by 35-20.00S…
  29. HYDROLANT 1825/062006-10-05 → 2006-10-13
    Hazardous operations 2200Z to 0159Z commencing daily 09 thru 12 oct in area bound by 35-29S 054-09W, 35-17S…
  30. HYDROLANT 1824/062006-10-05 → 2006-10-12
    Hazardous operations 1300Z to 1600Z daily 09 thru 12 oct in area bound by 35-55.0S 054-30.0W, 35-25.0S…
  31. HYDROLANT 1810/062006-10-04 → 2006-10-10
    Hazardous operations 091600Z to 092300Z oct in area bound by 39-21.0S 061-03.5W, 39-33.0S 060-50.0W,…
  32. HYDROLANT 1780/062006-09-30 → 2006-10-05
    Gunnery exercises 051200Z to 051700Z oct within ten miles of 17-45S 037-42W
  33. HYDROLANT 1731/062006-09-22 → 2006-09-28
    Hazardous operations 272100Z to 280100Z sep within 15 miles of 23-57S 041-10W
  34. HYDROLANT 1727/062006-09-22 → 2006-09-27
    Hazardous operations 262200Z to 270300Z sep in area bound by 21-21S 039-09W, 21-45S 038-50W, 21-57S 039-07W,…
  35. HYDROLANT 1706/062006-09-17 → 2006-09-23
    Hazardous operations 222100Z to 230200Z sep within 15 miles of 19-39S 038-36W
  36. HYDROLANT 1697/062006-09-15 → 2006-09-21
    Hazardous operations 202130Z to 202300Z sep in area bound by 41-57S 062-43W, 42-10S 062-20W, 42-30S 062-40W,…
  37. HYDROLANT 1684/062006-09-14 → 2006-09-16
    Gunnery exercises 160100Z to 160230Z sep in area bound by 40-50S 061-29W, 41-04S 061-12W, 41-20S 061-36W,…
  38. HYDROLANT 1586/062006-08-31 → 2006-09-06
    Hazardous operations 052100Z to 060100Z sep within 15 miles of 20-19S 038-34W
  39. HYDROLANT 1580/062006-08-30 → 2006-09-03
    Hazardous operations 031700Z to 031900Z sep in area bound by 41-23S 059-02W, 41-09S 058-44W, 41-25S 058-20W,…
  40. HYDROLANT 1579/062006-08-30 → 2006-09-03
    Hazardous operations 031200Z to 031300Z sep in area bound by 40-42S 060-03W, 40-27S 059-45W, 40-43S 059-22W,…
  41. HYDROLANT 1544/062006-08-24 → 2006-08-29
    Hazardous operations 291100Z to 291400Z aug within six miles of 13-30S 037-57W
  42. HYDROLANT 1280/062006-07-08 → 2006-07-13
    Hazardous operations 131200Z to 131500Z jul within ten miles of 21-05S 039-51W
  43. HYDROLANT 1248/062006-07-02 → 2006-07-12
    Hazardous operations: a. 071100Z to 071230Z and 112359Z to 120130Z jul in area bound by 42-08S 062-58W,…
  44. HYDROLANT 1246/062006-07-01 → 2006-07-06
    Hazardous operations 061530Z to 062000Z jul in area bound by 19-21S 038-54W, 19-39S 038-27W, 20-05S 038-45W,…
  45. HYDROLANT 1238/062006-06-30 → 2006-07-05
    Hazardous operations 051000Z to 051430Z jul in area bound by 15-19S 037-49W, 15-29S 037-20W, 15-57S 037-31W,…
  46. HYDROLANT 1187/062006-06-23 → 2006-06-28
    Gunnery exercises 281000Z to 281500Z jun in area bound by 02-07S 040-09W, 01-31S 039-49W, 01-50S 039-15W,…
  47. HYDROLANT 1177/062006-06-22 → 2006-06-28
    Gunnery exercises 272100Z to 280100Z jun within 30 miles of 00-53S 041-36W
  48. HYDROLANT 1022/062006-05-26 → 2006-05-31
    Hazardous operations 310900Z to 311400Z may in area bound by 23-30S 040-19W, 23-08S 039-57W, 23-18S 039-45W,…
  49. HYDROLANT 963/062006-05-19 → 2006-05-24
    Hazardous operations 241000Z to 242000Z may in area bound by 23-50.0S 043-16.8W, 24-00.0S 043-05.5W,…
  50. HYDROLANT 914/062006-05-13 → 2006-05-18
    Gunnery exercises 181500Z to 182200Z may in area bound by 01-30S 041-28W, 01-13S 041-16W, 01-43S 040-33W,…

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 35 · seahazards