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 1466/082008-09-11 → 2008-09-18
    Gunnery exercises 1030Z to 2030Z commencing daily 15 thru 18 sep in area bound by 05-52.83S 035-06.50W,…
  2. HYDROLANT 1429/082008-09-05 → 2008-09-11
    Hazardous operations 1000Z to 2050Z daily 10 and 11 sep in area bound by 22-58.72S 042-02.15W, 23-01.00S…
  3. HYDROLANT 1381/082008-08-28 → 2008-08-29
    Hazardous operations 281100Z to 282100Z and 291000Z to 291800Z aug in area bound by 23-27S 043-52W, 23-30S…
  4. HYDROLANT 1369/082008-08-23 → 2008-08-29
    Hazardous operations 1200Z to 1900Z daily 28 and 29 aug within 2.5 miles of 02-17S 044-21W
  5. HYDROLANT 1356/082008-08-20 → 2008-08-25
    Gunnery exercises 251600Z to 252000Z aug in area bound by 09-21.00S 035-04.00W, 09-12.00S 034-59.50W,…
  6. HYDROLANT 1304/082008-08-08 → 2008-08-14
    Hazardous operations 1544Z to 2205Z daily 12 aug thru 12 sep in area bound by 00-44S 000-25E, 02-31S…
  7. HYDROLANT 1274/082008-08-04 → 2008-08-08
    Hazardous operations 0930Z to 2100Z daily 05 thru 08 aug in area bound by 22-58.72S 042-02.15W, 23-01.00S…
  8. HYDROLANT 1246/082008-07-30 → 2008-08-04
    Gunnery exercises 041200Z to 041800Z aug within ten miles of 14-29S 038-20W
  9. HYDROLANT 1197/082008-07-18 → 2008-07-24
    Hazardous operations 1300Z to 1600Z daily 22 thru 24 jul in area bound 40-16.8S 056-48.6W, 40-18.2S…
  10. HYDROLANT 983/082008-06-14 → 2008-06-19
    Hazardous operations 191100Z to 192000Z jun within ten miles of 13-00S 037-00W
  11. HYDROLANT 979/082008-06-13 → 2008-06-18
    Hazardous operations 181100Z to 182000Z jun within ten miles of 13-25S 037-35W
  12. HYDROLANT 894/082008-05-28 → 2008-06-02
    Gunnery exercises 021300Z to 021700Z jun within ten miles of 06-32.23S 034-20.30W
  13. HYDROLANT 744/082008-05-02 → 2008-05-09
    Hazardous operations 070900Z to 092200Z may in area bound by 20-31S 040-05W, 20-22S 038-16W, 21-08S 038-12W,…
  14. HYDROLANT 743/082008-05-02 → 2008-05-14
    Hazardous operations 070900Z to 141200Z may in area bound by 20-40S 040-52W, 21-05S 040-59W, 21-05S 040-37W,…
  15. HYDROLANT 732/082008-04-30 → 2008-05-01
    Hazardous operations 0900Z to 2100Z daily 05 thru 20 may in area bound by 05-39.99S 035-01.89W, 05-39.90S…
  16. HYDROLANT 701/082008-04-24 → 2008-05-01
    Hazardous operations 280200Z apr to 010400Z may in areas bound by: a. 23-22S 042-05W, 24-00S 042-05W, 24-00S…
  17. HYDROLANT 679/082008-04-21 → 2008-04-26
    Hazardous operations 261000Z to 261800Z apr in area bound by 24-42.0S 042-28.0W, 25-08.5S 043-35.0W,…
  18. HYDROLANT 678/082008-04-21 → 2008-04-27
    Hazardous operations 262330Z to 270300Z apr within 25 miles of 25-13S 043-20W
  19. HYDROLANT 613/082008-04-12 → 2008-04-17
    Hazardous operations 171200Z to 172100Z apr in area bound by 26-06.5S 047-42.6W, 25-54.5S 047-25.2W,…
  20. HYDROLANT 558/082008-04-04 → 2008-04-09
    Hazardous operations 091000Z to 092100Z apr in area bound by 23-43.0S 043-11.5W, 23-16.1S 042-30.0W,…
  21. HYDROLANT 362/082008-02-26 → 2008-03-02
    Hazardous operations 021100Z to 021500Z mar in area bound by 00-14S 044-11W, 00-06N 044-07W, 00-13N 044-41W,…
  22. HYDROLANT 356/082008-02-25 → 2008-03-01
    Hazardous operations 011100Z to 011500Z mar in area bound by 01-51S 041-18W, 01-32S 041-19W, 01-17S 041-40W,…
  23. HYDROLANT 351/082008-02-24 → 2008-04-18
    Gunnery exercises 0900Z to 2000Z daily 25 feb thru 18 apr: a. in area bound by 05-42.53S 034-45.02W,…
  24. HYDROLANT 322/082008-02-17 → 2008-02-21
    Hazardous operations 211100Z to 211500Z feb in area bound by 15-01S 037-43W, 15-10S 037-24W, 14-37S 037-07W,…
  25. HYDROLANT 144/082008-01-19 → 2008-01-24
    Hazardous operations 241400Z to 241800Z jan in area bound by 21-02S 039-47W, 21-07S 039-39W, 20-58S 039-32W,…
  26. HYDROLANT 79/082008-01-10 → 2008-01-15
    Hazardous operations 151600Z to 152100Z jan in area bound by 22-11S 038-54W, 22-00S 038-42W, 21-47S 038-58W,…
  27. HYDROLANT 78/082008-01-10 → 2008-01-15
    Hazardous operations 151500Z to 151800Z jan in area bound by 22-02.0S 039-13.0W, 22-14.7S 038-58.0W,…
  28. HYDROLANT 77/082008-01-10 → 2008-01-16
    Hazardous operations 151930Z to 160001Z jan in area bound by 21-43S 039-10W, 21-47S 038-38W, 21-22S 038-34W,…
  29. HYDROLANT 1985/072007-11-30 → 2007-12-02
    Hazardous operations 040700Z to 041400Z dec in area bound by 24-09.5S 043-30.7W, 24-01.4S 043-10.7W,…
  30. HYDROLANT 1977/072007-11-29 → 2007-11-30
    Hazardous operations 040700Z to 041400Z dec in area bound by 23-49.0S 043-12.5W, 24-07.5S 043-05.5W,…
  31. HYDROLANT 1974/072007-11-28 → 2007-12-20
    Hazardous operations 0800Z to 1200Z daily 03 thru 21 dec in area bound by 06-01.20S 035-06.80W, 06-39.45S…
  32. HYDROLANT 1922/072007-11-20 → 2007-11-26
    Hazardous operations 250900Z to 260100Z nov in area bound by 25-18.5S 045-56.5W, 25-50.0S 044-35.0W,…
  33. HYDROLANT 1913/072007-11-19 → 2007-11-25
    Hazardous operations 241900Z to 250200Z nov within 30 miles of 29-11S 047-43W
  34. HYDROLANT 1868/072007-11-11 → 2007-11-16
    Gunnery exercises 160900Z to 162100Z nov in area bound by 32-54S 051-48W, 33-13S 051-21W, 32-38S 050-48W,…
  35. HYDROLANT 1735/072007-10-16 → 2007-10-22
    Hazardous operations 211800Z to 220300Z oct in area bound by 23-32S 043-41W, 23-46S 043-30W, 24-19S 044-24W,…
  36. HYDROLANT 1721/072007-10-11 → 2007-10-16
    Hazardous operations 160200Z to 161000Z oct in area bound by 23-22.0S 042-29.0W, 23-42.0S 042-06.0W,…
  37. HYDROLANT 1688/072007-10-05 → 2007-10-11
    Hazardous operations 101500Z to 110100Z oct in area bound by 15-57.0S 037-51.0W, 16-14.2S 037-03.0W,…
  38. HYDROLANT 1520/072007-09-03 → 2007-09-09
    Hazardous operations 1100Z to 1600Z daily 08 and 09 sep within ten miles of 16-30S 037-10W
  39. HYDROLANT 1512/072007-09-01 → 2007-09-04
    Hazardous operations 032130Z to 040001Z sep within ten miles of 23-42S 040-58W
  40. HYDROLANT 1396/072007-08-10 → 2007-08-11
    Hazardous operations 131100Z to 201700Z aug along trackline between 04-51.20S 036-33.42W and 04-51.26S…
  41. HYDROLANT 1277/072007-07-20 → 2007-08-25
    Hazardous operations 1300Z to 1900Z daily 25 jul thru 25 aug in areas bound by: a. 05-56.80S 035-11.20W,…
  42. HYDROLANT 1166/072007-07-05 → 2007-07-10
    Hazardous operations 100900Z to 101500Z jul within ten miles of 23-55S 042-48W
  43. HYDROLANT 1134/072007-06-30 → 2007-07-20
    Hazardous operations 1100Z to 1900Z daily 05 thru 20 jul in areas: a. within two miles of 02-19S 044-22W
  44. HYDROLANT 1086/072007-06-23 → 2007-06-29
    Hazardous operations 282100Z to 290001Z jun within 20 miles of 24-00S 040-44W
  45. HYDROLANT 1085/072007-06-23 → 2007-06-28
    Hazardous operations 271300Z to 280300Z jun in area bound by 20-22S 039-43W, 20-38S 039-10W, 20-56S 039-21W,…
  46. HYDROLANT 1074/072007-06-21 → 2007-06-26
    Hazardous operations 261000Z to 261500Z jun within 20 miles of 16-22S 038-00W
  47. HYDROLANT 1065/072007-06-20 → 2007-06-26
    Hazardous operations 252100Z to 260100Z jun within 20 miles of 14-22S 038-04W
  48. HYDROLANT 931/072007-06-01 → 2007-06-06
    Hazardous operations 052100Z to 060100Z jun within 20 miles of 15-00S 037-10W
  49. HYDROLANT 912/072007-05-30 → 2007-06-04
    Gunnery exercises 041100Z to 041400Z jun in area bound by 01-30S 041-58W, 01-13S 041-49W, 01-25S 041-25W,…
  50. HYDROLANT 911/072007-05-30 → 2007-06-02
    Gunnery exercises 0900Z to 2000Z in progress until 02 jun: a. in area bound by 05-42.53S 034-45.02W,…

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 34 · seahazards