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 2216/092009-11-15 → 2009-11-20
    Gunnery exercises 201200Z to 201500Z nov within ten miles of 05-00S 033-00W
  2. HYDROLANT 2170/092009-11-07 → 2009-11-13
    Hazardous operations 0800Z to 2130Z daily 10 thru 13 nov in area bound by 22-58.72S 042-02.15W, 23-01.00S…
  3. HYDROLANT 2127/092009-11-02 → 2009-11-20
    Hazardous operations 1200Z to 1900Z daily 07, 09, 12, 16, 19, 23, 24 and 27 nov within 22 miles of 06-02.0S…
  4. HYDROLANT 2106/092009-10-30 → 2009-11-05
    Hazardous operations 1000Z to 1900Z daily 03 and 05 nov within ten miles of 13-22.8S 038-16.5W
  5. HYDROLANT 2070/092009-10-25 → 2009-10-30
    Gunnery exercises 301100Z to 301700Z oct within 15 miles of 03-44.5S 037-29.5W
  6. HYDROLANT 2065/092009-10-24 → 2009-11-27
    Gunnery exercises 0800Z to 2000Z daily until 27 nov: a. in area bound by 05-42.53S 034-45.02W, 06-09.83S…
  7. HYDROLANT 2054/092009-10-24 → 2009-10-29
    Hazardous operations 290800Z to 291800Z oct in area bound by 24-01S 045-35W, 24-02S 045-46W, 24-14S 045-51W,…
  8. HYDROLANT 2047/092009-10-23 → 2009-10-28
    Hazardous operations 281000Z to 281900Z oct within ten miles of 11-05.87S 036-36.30W
  9. HYDROLANT 2005/092009-10-17 → 2009-10-23
    Hazardous operations 222200Z to 230100Z oct in area bound by 14-17S 037-57W, 14-22S 037-16W, 14-51S 037-18W,…
  10. HYDROLANT 2000/092009-10-16 → 2009-10-31
    Hazardous operations sunrise to sunset daily 19 thru 30 oct in area bound by 23-27.03S 043-52.03W, 23-30.03S…
  11. HYDROLANT 1986/092009-10-14 → 2009-10-16
    Hazardous operations 0600Z to 1800Z daily 19 thru 30 oct in area bound by 23-27.03S 043-52.03W, 23-30.03S…
  12. HYDROLANT 1985/092009-10-14 → 2009-10-23
    Gunnery exercises 1100Z to 1500Z and 1600Z to 2000Z daily 19 thru 23 oct in area bound by 22-57.58S…
  13. HYDROLANT 1984/092009-10-14 → 2009-11-06
    Gunnery exercises 0900Z to 2100Z daily 19 oct thru 06 nov in area bound by 29-20.88S 049-05.88W, 29-27.05S…
  14. HYDROLANT 1983/092009-10-14 → 2009-10-30
    Hazardous operations 0600Z to 1800Z daily 19 thru 30 oct in area bound by 23-53S 044-48W, 24-18S 044-38W,…
  15. HYDROLANT 1944/092009-10-08 → 2009-10-29
    Hazardous operations 0001Z to 2359Z daily 13 thru 28 oct in areas bound by: a. 05-53.93S 035-09.08W,…
  16. HYDROLANT 1943/092009-10-08 → 2009-10-14
    Gunnery exercises 131100Z to 132300Z within ten miles of 29-50S 049-31W
  17. HYDROLANT 1935/092009-10-07 → 2009-10-15
    Gunnery exercises 1100Z to 2000Z daily 08 and 13 thru 15 oct in area bound by 24-00.00S 046-24.00W,…
  18. HYDROLANT 1924/092009-10-06 → 2009-10-09
    Gunnery exercises 1200Z to 1900Z daily 05 thru 09 oct in area bound by 24-00.00S 046-24.00W, 24-10.00S…
  19. HYDROLANT 1909/092009-10-03 → 2009-10-24
    Hazardous operations 0800Z to 2000Z daily 08 oct thru 13 nov: a. in area bound by 05-42.53S 034-45.02W,…
  20. HYDROLANT 1897/092009-10-02 → 2009-10-07
    Gunnery exercises 071000Z to 071900Z oct in area bound by 07-36.00S 034-49.35W, 07-42.35S 034-44.32W,…
  21. HYDROLANT 1844/092009-09-25 → 2009-09-30
    Gunnery exercises 301200Z to 302100Z sep in area bound by 00-40.0S 048-20.0W, 00-42.0S 048-17.5W, 00-37.5S…
  22. HYDROLANT 1791/092009-09-19 → 2009-09-24
    Hazardous operations 240900Z to 241700Z sep in area bound by 26-13.00S 045-31.00W, 26-33.00S 045-04.00W,…
  23. HYDROLANT 1789/092009-09-19 → 2009-09-25
    Hazardous operations 242200Z to 250200Z sep in area bound by 27-31.00S 046-56.00W, 27-53.00S 046-33.00W,…
  24. HYDROLANT 1718/092009-09-09 → 2009-09-14
    Hazardous operations 141200Z to 141800Z sep in area bound by 23-06S 043-09W, 23-13S 043-17W, 23-20S 043-09W,…
  25. HYDROLANT 1717/092009-09-09 → 2009-09-24
    Hazardous operations 1000Z to 2200Z daily 14 thru 24 sep in area bound by 05-51.84S 034-55.40W, 05-57.08S…
  26. HYDROLANT 1690/092009-09-05 → 2009-09-10
    Gunnery exercises 101400Z to 101700Z sep within ten miles of 05-27S 034-47W
  27. HYDROLANT 1668/092009-09-02 → 2009-09-07
    Hazardous operations 0900Z to 2100Z daily 06 and 07 sep in area bound by 22-58.72S 042-02.15W, 23-01.00S…
  28. HYDROLANT 1646/092009-08-29 → 2009-09-03
    Gunnery exercises 031100Z to 031500Z sep within ten miles of 05-27S 034-47W
  29. HYDROLANT 1645/092009-08-29 → 2009-09-10
    Hazardous operations 031100Z to 101100Z sep within one mile of 23-10S 043-09W
  30. HYDROLANT 1625/092009-08-27 → 2009-09-02
    Gunnery exercises 311400Z aug to 022000Z sep in area bound by 13-24S 038-15W, 13-08S 037-52W, 13-25S…
  31. HYDROLANT 1619/092009-08-26 → 2009-10-08
    Gunnery exercises 0800Z to 2000Z daily 26 aug thru 08 oct: a. in area bound by 05-42.53S 034-45.02W,…
  32. HYDROLANT 1596/092009-08-23 → 2009-08-28
    Gunnery exercises 281100Z to 282100Z aug within ten miles of 13-25S 038-15W
  33. HYDROLANT 1591/092009-08-22 → 2009-08-26
    Gunnery exercises 0800Z to 2000Z daily 26 aug thru 19 sep: a. in area bound by 05-42.53S 034-45.02W,…
  34. HYDROLANT 1517/092009-08-12 → 2009-08-17
    Gunnery exercises 171500Z to 172100Z aug within 15 miles of 05-17S 034-48W
  35. HYDROLANT 1485/092009-08-07 → 2009-08-15
    Hazardous operations 10 thru 14 aug: a. within 2.2 miles of 02-19.00S 044-22.05W
  36. HYDROLANT 1450/092009-08-02 → 2009-08-05
    Hazardous operations 050900Z to 051600Z aug within 20 miles of 23-10S 041-24W
  37. HYDROLANT 1448/092009-08-01 → 2009-08-02
    Hazardous operations 060900Z to 061500Z aug within 20 miles of 23-10S 041-24W
  38. HYDROLANT 1447/092009-08-01 → 2009-08-06
    Hazardous operations 060900Z to 061600Z aug in area bound by 23-11S 042-13W, 23-20S 041-56W, 23-40S 042-03W,…
  39. HYDROLANT 1440/092009-07-31 → 2009-08-08
    Hazardous operations 050300Z to 080300Z aug within 40 miles of 25-30S 042-00W
  40. HYDROLANT 1425/092009-07-30 → 2009-08-05
    Hazardous operations 042330Z to 050300Z aug in area bound by 24-24S 042-03W, 24-29S 041-43W, 24-53S 041-50W,…
  41. HYDROLANT 1411/092009-07-29 → 2009-08-03
    Gunnery exercise 031230Z to 031700Z aug within ten miles of 14-24S 038-20W
  42. HYDROLANT 1366/092009-07-23 → 2009-07-28
    Gunnery exercises 281100Z to 281500Z jul within five miles of 32-26S 051-54W
  43. HYDROLANT 1331/092009-07-17 → 2009-07-22
    Gunnery exercises 221100Z to 221500Z jul within 15 miles of 07-11S 032-06W
  44. HYDROLANT 1323/092009-07-16 → 2009-07-23
    Hazardous operations 1100Z to 2100Z daily 21 thru 23 jul in area bound by 23-27.03S 043-52.03W, 23-30.03S…
  45. HYDROLANT 1291/092009-07-12 → 2009-07-15
    Gunnery exercises 160800Z to 161500Z jul within five miles of 30-05.5S 049-31.0W
  46. HYDROLANT 1290/092009-07-12 → 2009-07-15
    Gunnery exercises 161700Z to 162300Z jul within five miles of 29-17.5S 048-55.0W
  47. HYDROLANT 1284/092009-07-10 → 2009-07-16
    Gunnery exercises 151700Z to 160100Z jul within ten miles of 31-50S 051-00W
  48. HYDROLANT 1265/092009-07-08 → 2009-07-17
    Hazardous operations 132100Z to 150230Z, 151100Z to 160230Z, 161100Z to 170230Z and 171100Z to 172100Z jul…
  49. HYDROLANT 1264/092009-07-08 → 2009-07-17
    Gunnery exercises 131000Z to 172030Z jul in area bound by 27-43.9S 047-53.9W, 28-07.6S 048-08.8W, 28-30.3S…
  50. HYDROLANT 1247/092009-07-05 → 2009-07-10
    Gunnery exercises 101100Z to 101500Z jul within 15 miles of 03-44.5S 037-29.5W

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 31 · seahazards