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 1503/042004-09-16 → 2004-09-24
    Hazardous operations 211100Z to 242030Z sep in areas bound by: a. 23-05S 043-55W, 23-08S 043-57W, 23-08S…
  2. HYDROLANT 1487/042004-09-12 → 2004-09-16
    Hazardous operations 161600Z to 161900Z sep within 10 miles of 13-19S 038-15W
  3. HYDROLANT 1434/042004-09-02 → 2004-09-28
    Hazardous operations: a. 1700Z to 1800Z daily 06, 13, 20, and 27 sep in area between 23-02.0S 23-04.0S and…
  4. HYDROLANT 1330/042004-08-11 → 2004-08-20
    Hazardous operations 1230Z to 2000Z daily 16 to 20 aug within 1.5 miles of 02-17S 044-21W
  5. HYDROLANT 1244/042004-07-25 → 2004-07-31
    Gunnery exercises 301500Z to 302300Z jul within six miles of 35-00S 054-00W
  6. HYDROLANT 1164/042004-07-10 → 2004-07-15
    Gunnery exercise 142230Z 150100Z jul in area bound by 39-19S 059-35W, 39-40S 059-35W, 39-40S 058-57W, 39-19S…
  7. HYDROLANT 535/042004-04-01 → 2004-04-17
    Hazardous operations 1030Z to 2030Z daily 05 thru 20 apr in area bound by 24-14S 045-00W, 23-52S 045-14W,…
  8. HYDROLANT 318/042004-02-24 → 2004-02-27
    Hazardous operations 260030Z to 260551Z feb, alternate 270030Z to 270551Z feb in areas bound by 08-26S…
  9. HYDROLANT 2062/032003-11-02 → 2003-11-07
    Hazardous operations 071000Z to 072000Z nov within ten miles of 32-10S 050-52W
  10. HYDROLANT 2055/032003-11-01 → 2003-11-05
    Hazardous operations 051000Z to 052000Z nov within ten miles of 29-30S 048-30W
  11. HYDROLANT 1788/032003-09-19 → 2003-09-25
    Hazardous operations 251130Z to 252000Z sep: a. in area bound by 05-54.0S 035-11.0W, 05-56.0S 035-11.0W,…
  12. HYDROLANT 1777/032003-09-17 → 2003-09-19
    Hazardous operations 221130Z to 222000Z sep: a. in area bound by 05-54.0S 035-11.0W, 05-56.0S 035-11.0W,…
  13. HYDROLANT 1391/032003-07-19 → 2003-07-24
    Hazardous operations 241300Z to 242000Z jul in area bound by 05-54.0S 035-11.0W, 05-56.0S 035-11.0W,…
  14. HYDROLANT 1002/032003-05-22 → 2003-05-29
    Hazardous operations 271000Z to 291000Z may within 55 miles of 17-58.0S 038-41.5W
  15. HYDROLANT 831/032003-04-23 → 2003-05-09
    Hazardous operations 1130Z to 2000Z daily 28 apr thru 09 may within eight miles of 05-55S 035-02W
  16. HYDROLANT 826/032003-04-22 → 2003-04-25
    Hazardous operations 231820Z to 232337Z apr, alternate 241820Z to 242337Z apr in areas bound by: a. 17-15N…
  17. HYDROLANT 2690/022002-12-06 → 2002-12-13
    Hazardous operations 111950Z to 120105Z dec, alternate 121950Z to 130105Z dec in area bound by 05-57S…
  18. HYDROLANT 2658/022002-12-01 → 2002-12-03
    Hazardous operations 0630Z to 2000Z daily until 04 dec within 2.5 miles of 02-19S 044-22W
  19. HYDROLANT 2635/022002-11-29 → 2002-12-03
    Hazardous operations 0800Z to 1900Z daily 29 nov thru 04 dec in area bound by 01-54S 043-53W, 01-38S…
  20. HYDROLANT 2634/022002-11-29 → 2002-12-01
    Hazardous operations 0800Z to 1900Z daily 29 nov thru 04 dec within 2.5 miles of 02-19S 044-22W
  21. HYDROLANT 2605/022002-11-24 → 2002-11-28
    Hazardous operations 0800Z to 1800Z daily 29 nov thru 04 dec in area bound by 01-33.0S 043-32.0W, 01-22.0S…
  22. HYDROLANT 2604/022002-11-24 → 2002-11-29
    Hazardous operations 0800Z to 1800Z daily 29 nov thru 04 dec within 2.5 miles of 02-19S 044-22W
  23. HYDROLANT 2602/022002-11-23 → 2002-11-27
    Hazardous operations 1100Z to 0001Z commencing daily 23 thru 26 nov within 2.5 miles of 02-19S 044-22W
  24. HYDROLANT 2586/022002-11-22 → 2002-11-27
    Hazardous operations 1830Z to 0001Z commencing daily 23 thru 26 nov in area bound by 02-14.5S 042-09.3W,…
  25. HYDROLANT 2583/022002-11-22 → 2002-11-27
    Hazardous operations 1830Z to 0001Z commencing daily 23 thru 26 nov within five miles of 02-13S 044-16W
  26. HYDROLANT 2415/022002-10-31 → 2002-11-09
    Hazardous operations 1300Z to 1900Z daily 04 thru 09 nov within two miles of 02-17S 044-21W
  27. HYDROLANT 2405/022002-10-30 → 2002-10-31
    Hazardous operations 0900Z to 1700Z daily 04 thru 09 nov within two miles of 02-17S 044-21W
  28. HYDROLANT 2324/022002-10-21 → 2002-10-24
    Hazardous operations 222130Z to 230240Z oct, alternate 232130Z to 240140Z oct in area bound by 05-51S…
  29. HYDROLANT 2291/022002-10-16 → 2002-10-25
    Hazardous operations 0900Z to 1700Z daily 21 thru 25 oct within two miles of 02-17S 044-21W
  30. HYDROLANT 2089/022002-09-18 → 2002-10-04
    Hazardous operations 1300Z to 2000Z daily 23 sep thru 04 oct within 3.5 miles of 05-55S 035-04W
  31. HYDROLANT 2019/022002-09-11 → 2002-09-13
    Hazardous operations 0900Z to 1700Z daily 11 thru 13 sep within two miles of 02-19S 044-22W
  32. HYDROLANT 1876/022002-08-24 → 2002-08-28
    Hazardous operations 281200Z to 282000Z aug in area bound by 05-54S 035-11W, 05-56S 035-11W, 06-04S 034-57W,…
  33. HYDROLANT 1719/022002-08-03 → 2002-08-06
    Hazardous operations 1200Z to 2000Z daily 08 thru 10 aug within five miles of: a. 06-12S 034-39W
  34. HYDROLANT 1256/022002-06-06 → 2002-06-08
    Hazardous operations 1400Z to 2000Z daily 11 and 14 jun within two miles of 02-17S 044-21W
  35. HYDROLANT 1058/022002-05-08 → 2002-05-15
    Hazardous operations 2230Z to 0530Z commencing daily 08 thru 15 may within six miles of 05-53S 030-47W
  36. HYDROLANT 1039/022002-05-04 → 2002-05-16
    Hazardous operations 2230Z to 0530Z commencing daily 08 thru 15 may within six miles of 05-55S 034-57W
  37. HYDROLANT 1027/022002-05-03 → 2002-05-04
    Hazardous operations 2230Z to 0330Z commencing daily 08 thru 15 may within six miles of 05-55S 034-57W
  38. HYDROLANT 1026/022002-05-03 → 2002-05-08
    Hazardous operations 2230Z to 0330Z commencing daily 08 thru 15 may within six miles of 05-53S 030-47W
  39. HYDROLANT 935/022002-04-22 → 2002-04-26
    Hazardous operations 241945Z to 250505Z apr, alternate 251945Z to 260505Z apr in areas bound by: a. 06-42S…
  40. HYDROLANT 850/022002-04-12 → 2002-04-30
    Hazardous operations 1230Z to 2000Z in progress until 30 apr within 3.5 miles of 05-55S 035-04W
  41. HYDROLANT 710/022002-03-28 → 2002-04-18
    Hazardous operations 1230Z to 2000Z daily 01 thru 18 apr within 3.5 miles of 05-55S 035-04W
  42. HYDROLANT 668/022002-03-23 → 2002-03-27
    Hazardous operations 271300Z to 271700Z mar in area bound by 05-54S 035-11W, 05-56S 035-11W, 06-04S 034-57W,…
  43. HYDROLANT 607/022002-03-15 → 2002-03-18
    Hazardous operations 161940Z to 170052Z mar, alternate 171940Z to 180052Z mar in area bound by 08-43S…
  44. HYDROLANT 600/022002-03-15 → 2002-03-15
    Hazardous operations 161940Z to 170052Z mar, alternate 171940Z to 180052Z mar in area bound by 08-43S…
  45. HYDROLANT 3197/012001-12-17 → 2001-12-19
    Hazardous operations 182010Z to 190307Z dec in area bound by 06-18S 017-21W, 08-10S 014-30W, 09-07S 015-07W,…
  46. HYDROLANT 3170/012001-12-13 → 2001-12-14
    Hazardous operations 152010Z to 160107Z dec, alternate 162010Z to 170107Z dec in area bound by 06-18S…
  47. HYDROLANT 3113/012001-12-07 → 2001-12-11
    Hazardous operations 092010Z to 100107Z dec, alternate 102010Z to 110107Z dec in area bound by 06-18S…
  48. HYDROLANT 3053/012001-11-30 → 2001-12-07
    Hazardous operations 1100Z to 1900Z daily 04 thru 07 dec in area bound by 05-54.0S 035-11.0W, 05-56.0S…
  49. HYDROLANT 2913/012001-11-12 → 2001-11-14
    Gunnery exercises 0001Z to 0700Z daily 13 and 14 nov in area bound by 36-25S 055-14W, 35-36S 054-40W, 35-58S…
  50. HYDROLANT 2884/012001-11-08 → 2001-11-14
    Gunnery exercises 140100Z to 141800Z nov in area bound by 37-04S 053-21W, 37-25S 054-10W, 37-43S 053-58W,…

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 38 · seahazards