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 2366/222022-09-18 → 2022-09-23
    Hazardous operations 1000Z to 2100Z daily 19 thru 23 sep in area bound by 24-20.00S 040-32.00W, 24-30.00S…
    Western South Atlantic
  2. HYDROLANT 2330/222022-09-15 → 2022-09-23
    Hazardous operations 1000Z to 2030Z daily 19 thru 23 sep in area bound by 05-51.89S 034-54.35W, 05-47.04S…
    Western South Atlantic · Brazil
  3. HYDROLANT 2276/222022-09-09 → 2022-09-21
    Hazardous operations 110400Z to 202359Z sep in area bound by 20-56.67S 040-32.52W, 20-49.89S 040-41.32W,…
    Western South Atlantic · Brazil
  4. HYDROLANT 2238/222022-09-07 → 2022-09-13
    Hazardous operations 120600Z to 131800Z sep in area within 15 miles of 24-24.20S 041-12.00W
    Western South Atlantic · Brazil
  5. HYDROLANT 2237/222022-09-07 → 2022-09-12
    Hazardous operations 120900Z to 122100Z sep in area within 25 miles of 23-53.10S 042-58.80W
    Western South Atlantic · Brazil
  6. HYDROLANT 2236/222022-09-07 → 2022-09-13
    Hazardous operations 122100Z to 130600Z sep in area within 15 miles of 23-57.68S 042-19.17W
    Western South Atlantic · Brazil
  7. HYDROLANT 2217/222022-09-05 → 2022-09-11
    Hazardous operations 101100Z to 102300Z sep in area within four miles of 23-02.10S 044-05.83W
    Western South Atlantic · Brazil
  8. HYDROLANT 2216/222022-09-05 → 2022-09-15
    Hazardous operations 100300Z to 150600Z sep in areas bound by: a. 24-18.00S 043-20.40W, 24-18.00S…
    Western South Atlantic · Brazil
  9. HYDROLANT 2201/222022-09-03 → 2022-09-06
    Hazardous operations 051200Z to 052300Z sep in area within four miles of 23-02.10S 044-02.83W
    Western South Atlantic · Brazil
  10. HYDROLANT 2200/222022-09-03 → 2022-09-11
    Hazardous operations 040300Z to 110300Z sep in areas within one mile of: a. 23-19.75S 044-09.67W
    Western South Atlantic · Brazil
  11. HYDROLANT 2199/222022-09-03 → 2022-09-06
    Hazardous operations 030300Z to 060300Z sep in area bound by 24-02.80S 043-55.80W, 24-02.80S 043-23.10W,…
    Western South Atlantic · Brazil
  12. HYDROLANT 2186/222022-09-02 → 2022-09-11
    Hazardous operations 1000Z to 2000Z daily 07 thru 11 sep in area bound by 22-48.07S 043-38.97W, 22-55.88S…
    Western South Atlantic · Brazil
  13. HYDROLANT 2116/222022-08-27 → 2022-08-31
    Hazardous operations 311100Z to 312000Z in area within five miles of 05-38.00S 034-53.00W
    Western South Atlantic · Brazil
  14. HYDROLANT 2098/222022-08-25 → 2022-08-29
    Hazardous operations 291500Z to 292100Z aug in area within five miles of 09-51.00S 035-15.00W
    Western South Atlantic · Brazil
  15. HYDROLANT 2091/222022-08-24 → 2022-08-24
    Hazardous operations 241100Z to 242000Z in area within five miles of 05-38.25S 034-53.00W
    Western South Atlantic · Brazil
  16. HYDROLANT 2057/222022-08-19 → 2022-08-24
    Hazardous operations 230900Z to 242200Z aug in area within ten miles of 23-37.00S 043-13.00W
    Western South Atlantic · Brazil
  17. HYDROLANT 2054/222022-08-19 → 2022-08-26
    Hazardous operations 1000Z to 2100Z daily 23 thru 26 aug in area bound by 24-20.00S 040-32.00W, 24-30.00S…
    Western South Atlantic
  18. HYDROLANT 2031/222022-08-15 → 2022-08-18
    Hazardous operations 2230Z to 2345Z daily 15 thru 17 aug in area within seven miles of 23-51.35S 044-40.35W
    Western South Atlantic · Brazil
  19. HYDROLANT 2007/222022-08-13 → 2022-08-18
    Hazardous operations 1100Z to 2000Z daily 17 and 18 aug in area within five miles of 05-38.25S 034-53.00W
    Western South Atlantic · Brazil
  20. HYDROLANT 1995/222022-08-12 → 2022-08-17
    Hazardous operations 171200Z to 172200Z aug in area bound by 24-15.00S 043-16.70W, 23-50.00S 043-16.70W,…
    Western South Atlantic · Brazil
  21. HYDROLANT 1990/222022-08-11 → 2022-08-16
    Hazardous operations 152230Z to 160900Z aug in area within 11 miles of 23-50.00S 044-37.00W
    Western South Atlantic · Brazil
  22. HYDROLANT 1989/222022-08-11 → 2022-10-31
    Hazardous operations 0930Z to 2120Z daily 15 aug thru 31 oct in area bound by 05-42.53S 034-45.02W,…
    Western South Atlantic · Brazil
  23. HYDROLANT 1984/222022-08-10 → 2022-08-12
    Hazardous operations 121500Z to 122100Z aug in area within ten miles of 13-00.00S 037-43.00W
    Western South Atlantic · Brazil
  24. HYDROLANT 1940/222022-08-05 → 2022-08-11
    Hazardous operations 100900Z to 112200Z aug in area bound by 23-30.00S 042-40.00W, 23-10.00S 042-40.00W,…
    Western South Atlantic · Brazil
  25. HYDROLANT 1934/222022-08-04 → 2022-08-12
    Hazardous operations 1000Z to 2100Z daily 09 thru 12 aug in area bound by 24-20.00S 040-32.00W, 24-30.00S…
    Western South Atlantic · Brazil
  26. HYDROLANT 1871/222022-07-28 → 2022-08-02
    Hazardous operations 011800Z to 020001Z aug in area within ten miles of 24-00.00S 043-00.00W
    Western South Atlantic · Brazil
  27. HYDROLANT 1791/222022-07-17 → 2022-08-26
    Hazardous operations 220001Z jul to 252359Z aug in area bound by 24-02.80S 043-55.80W, 24-22.00S 043-55.80W,…
    Western South Atlantic · Brazil
  28. HYDROLANT 1790/222022-07-17 → 2022-07-23
    Hazardous operations 221000Z to 232100Z jul in area bound by 32-22.40S 052-12.40W, 32-30.40S 052-14.10W,…
    Western South Atlantic · Brazil
  29. HYDROLANT 1769/222022-07-15 → 2022-07-23
    Hazardous operations 150900Z to 230001Z jul in area bound by 12-45.00S 037-05.00W, 12-55.00S 036-45.00W,…
    Western South Atlantic · Brazil
  30. HYDROLANT 1764/222022-07-13 → 2022-07-18
    Hazardous operations 181100Z to 182000Z jul in area within five miles of 05-34.74S 034-51.52W
    Western South Atlantic · Brazil
  31. HYDROLANT 1759/222022-07-13 → 2022-07-23
    Hazardous operations 180001Z to 222359Z jul in area bound by 24-00.00S 046-24.00W, 24-09.62S 046-24.65W,…
    Western South Atlantic · Brazil
  32. HYDROLANT 1758/222022-07-13 → 2022-07-22
    Hazardous operations 1000Z to 2030Z daily 18 thru 22 jul in area bound by 05-54.13S 035-10.00W, 05-47.04S…
    Western South Atlantic · Brazil
  33. HYDROLANT 1740/222022-07-10 → 2022-07-12
    Hazardous operations 120100Z to 122000Z jul in area within 15 miles of 13-36.00S 038-27.00W
    Western South Atlantic · Brazil
  34. HYDROLANT 1721/222022-07-07 → 2022-07-08
    Hazardous operations 081000Z to 081400Z jul in area wthin seven miles of 23-51.23S 044-39.50W
    Western South Atlantic · Brazil
  35. HYDROLANT 1708/222022-07-06 → 2022-07-06
    Hazardous operations 060900Z to 061800Z jul in area within seven miles of 24-06.97S 044-58.15W
    Western South Atlantic · Brazil
  36. HYDROLANT 1677/222022-07-02 → 2022-07-06
    Hazardous operations 060900Z to 061800Z jul in area bound by 23-48.00S 044-50.00W, 23-58.00S 044-47.00W,…
    Western South Atlantic · Brazil
  37. HYDROLANT 1663/222022-07-01 → 2022-07-08
    Hazardous operations 061100Z to 082100Z jul in area bound by 23-50.67S 041-52.03W, 23-32.27S 041-52.03W,…
    Western South Atlantic · Brazil
  38. HYDROLANT 1656/222022-06-30 → 2023-04-16
    Hazardous operations 300001Z jun 22 to 160001Z apr 23 in areas bound by: a. 22-44.71S 040-52.97W, 22-42.75S…
    Western South Atlantic · Brazil-southeast Coast
  39. HYDROLANT 1628/222022-06-26 → 2022-07-01
    Hazardous operations 010900Z to 011500Z jul in area within ten miles of 04-14.00S 034-51.00W
    Western South Atlantic · Brazil
  40. HYDROLANT 1621/222022-06-25 → 2022-06-30
    Hazardous operations 300900Z to 301800Z jun in area bound by 23-48.00S 044-50.00W, 23-58.00S 044-47.00W,…
    Western South Atlantic · Brazil
  41. HYDROLANT 1540/222022-06-16 → 2022-06-22
    Hazardous operations 1000Z to 1900Z daily 21 and 22 jun in area bound by 13-24.00S 038-36.00W, 13-14.00S…
    Western South Atlantic · Brazil
  42. HYDROLANT 1428/222022-06-01 → 2022-06-07
    Hazardous operations 060300Z to 062300Z jun in area within six miles of 23-10.00S 043-03.00W
    Western South Atlantic · Brazil
  43. HYDROLANT 1372/222022-05-25 → 2022-06-04
    Hazardous operations in progress until 04 jun in area bound by 02-18.94S 044-22.02W, 02-13.80S 044-22.07W,…
    Western South Atlantic · Brazil
  44. HYDROLANT 1156/222022-04-27 → 2022-05-01
    Hazardous operations 280001Z to 302359Z apr in area within 15 miles of 23-27.33S 041-44.28W
    Western South Atlantic · Brazil-southeast Coast
  45. HYDROLANT 1146/222022-04-26 → 2022-05-05
    Gunnery exercises 01 thru 04 may in area bound by 25-15.5S 014-25.5E, 25-05.5S 014-25.5E, 25-05.5S…
    Eastern South Atlantic · Namibia
  46. HYDROLANT 1142/222022-04-26 → 2022-04-26
    Gunnery exercises 01 thru 04 may in area bound by 22-51.5S 014-25.5E, 25-51.5S 014-25.5E, 22-39.5S…
    Eastern South Atlantic · Namibia
  47. HYDROLANT 1138/222022-04-25 → 2022-05-02
    Hazardous operations in progress until 022100Z may in area bound by 24-06.0S 045-27.0W, 24-01.0S 045-35.0W,…
    Western South Atlantic · Brazil-south Coast
  48. HYDROLANT 1111/222022-04-21 → 2022-04-27
    Hazardous operations 1100Z to 2000Z daily 26 and 27 apr in area within five miles of 05-38.25S 034-53.00W
    Western South Atlantic · Brazil-northeast Coast
  49. HYDROLANT 1107/222022-04-20 → 2022-04-25
    Hazardous operations 250900Z to 251500Z apr in area within ten miles of 14-22S 038-35W
    Western South Atlantic · Brazil-east Coast
  50. HYDROLANT 1106/222022-04-20 → 2022-05-31
    Hazardous operations 252100Z apr to 312100Z may in area within 15 miles of 23-46S 042-22W
    Western South Atlantic · Brazil-southeast 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 5 · seahazards