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 2122/112011-12-11 → 2011-12-16
    Hazardous operations
    Brazil-south Coast
  2. HYDROLANT 2121/112011-12-11 → 2011-12-16
    Gunnery exercises 161100Z to 162100Z dec within five miles of 06-12.0S 034-45.3W
    Brazil-northeast Coast · Gunnery
  3. HYDROLANT 2098/112011-12-09 → 2011-12-15
    Gunnery exercises 140700Z to 14100Z dec and 201000Z to 201900Z dec within ten miles of 05-30S 034-50W
    Brazil-northeast Coast · Gunnery
  4. HYDROLANT 2097/112011-12-09 → 2011-12-14
    Gunnery exercises 141100Z to 142100Z dec within five miles of 09-30S 035-07W
    Brazil-east Coast · Gunnery
  5. HYDROLANT 2088/112011-12-09 → 2011-12-16
    Hazardous operations
    Brazil-south Coast
  6. HYDROLANT 2084/112011-12-08 → 2011-12-12
    Hazardous operations
    Brazil-east Coast
  7. HYDROLANT 2038/112011-12-02 → 2011-12-07
    Hazardous operations
    Brazil-southeast Coast
  8. HYDROLANT 2029/112011-11-30 → 2011-12-07
    Gunnery exercises 1200Z to 1900Z daily 05 thru 07 dec in area bound by 24-00S 046-21W, 24-00S 046-24W,…
    Brazil-south Coast · Gunnery
  9. HYDROLANT 2027/112011-11-30 → 2011-12-01
    Hazardous operations
    Brazil-south Coast
  10. HYDROLANT 2026/112011-11-30 → 2011-12-06
    Hazardous operations
    Brazil-south Coast
  11. HYDROLANT 2021/112011-11-29 → 2011-12-04
    Gunnery exercises 041100Z to 041500Z dec within ten miles of 09-00.0S 034-40.6W
    Brazil-east Coast · Gunnery
  12. HYDROLANT 1991/112011-11-26 → 2011-12-01
    Gunnery exercises 011000Z to 011900Z dec within ten miles of 04-20S 037-00W
    Brazil-north Coast · Gunnery
  13. HYDROLANT 1984/112011-11-25 → 2011-11-26
    Gunnery exercises 011000Z to 011900Z dec within ten miles of 04-20S 037-00W
    Brazil-north Coast · Gunnery
  14. HYDROLANT 1970/112011-11-24 → 2011-11-29
    Gunnery exercises 291000Z to 292000Z nov within five miles of 05-36.5S 034-36.5W
    Brazil-northeast Coast · Gunnery
  15. HYDROLANT 1961/112011-11-23 → 2011-11-28
    Gunnery exercises 281100Z to 282000Z nov within five miles of 06-55S 034-30W
    Brazil-east Coast · Gunnery
  16. HYDROLANT 1960/112011-11-23 → 2011-11-30
    Hazardous operations
    Brazil-south Coast
  17. HYDROLANT 1929/112011-11-18 → 2011-11-23
    Gunnery exercises 231000Z to 231900Z nov within ten miles of 08-02S 034-08W
    Brazil-northeast Coast · Gunnery
  18. HYDROLANT 1915/112011-11-16 → 2011-11-23
    Hazardous operations
    Brazil-south Coast
  19. HYDROLANT 1914/112011-11-16 → 2011-11-25
    Gunnery exercises 210600Z to 252200Z nov within 70 miles of 25-46S 040-04W
    Brazil-southeast Coast · Gunnery
  20. HYDROLANT 1838/112011-11-06 → 2011-11-11
    Gunnery exercises 111000Z to 111900Z nov within ten miles of 05-30S 034-50W
    Brazil-northeast Coast · Gunnery
  21. HYDROLANT 1812/112011-11-02 → 2011-11-07
    Gunnery exercises 071000Z to 071900Z nov within 10 miles of 03-56S 037-45W
    Brazil-north Coast · Gunnery
  22. HYDROLANT 1801/112011-11-01 → 2011-11-05
    Hazardous operations
    Brazil-northeast Coast
  23. HYDROLANT 1775/112011-10-28 → 2011-11-03
    Gunnery exercises 031400Z to 032000Z nov within five miles of 13-12.5S 038-11.5W
    Brazil-east Coast · Gunnery
  24. HYDROLANT 1744/112011-10-22 → 2011-10-28
    Gunnery exercises 281000Z to 281900Z oct within ten miles of 05-30S 034-50W
    Brazil-northeast Coast · Gunnery
  25. HYDROLANT 1738/112011-10-22 → 2011-10-28
    Hazardous operations
    Brazil-south Coast
  26. HYDROLANT 1699/112011-10-16 → 2011-10-22
    Hazardous operations
    Brazil-south Coast
  27. HYDROLANT 1685/112011-10-14 → 2011-10-19
    Hazardous operations
    Brazil-east Coast
  28. HYDROLANT 1684/112011-10-14 → 2011-10-20
    Hazardous operations
    Brazil-east Coast
  29. HYDROLANT 1675/112011-10-13 → 2011-10-18
    Hazardous operations
    Brazil-east Coast
  30. HYDROLANT 1632/112011-10-06 → 2011-10-11
    Hazardous operations
    Brazil-east Coast
  31. HYDROLANT 1623/112011-10-05 → 2011-10-10
    Hazardous operations
    Brazil-east Coast
  32. HYDROLANT 1596/112011-09-30 → 2011-10-03
    Hazardous operations
    Brazil-south Coast
  33. HYDROLANT 1590/112011-09-30 → 2011-10-08
    Hazardous operations
    Brazil-northeast Coast
  34. HYDROLANT 1589/112011-09-30 → 2011-10-08
    Hazardous operations
    Brazil-northeast Coast
  35. HYDROLANT 1583/112011-09-29 → 2011-10-05
    Hazardous operations
    Brazil-south Coast
  36. HYDROLANT 1580/112011-09-28 → 2011-10-20
    Hazardous operations
    Brazil-north Coast
  37. HYDROLANT 1579/112011-09-28 → 2011-10-20
    Hazardous operations
    Brazil-north Coast
  38. HYDROLANT 1555/112011-09-24 → 2011-09-30
    Gunnery exercises 1000Z to 1900Z daily 29 and 30 sep in area bound by 07-36.00S 034-49.35W 07-42.35S…
    Brazil-east Coast · Gunnery
  39. HYDROLANT 1544/112011-09-23 → 2011-09-29
    Gunnery exercises 1100Z to 2000Z daily 28 and 29 sep in area bound by 32-12.50S 052-12.00W, 32-22.32S…
    Brazil-south Coast · Gunnery
  40. HYDROLANT 1542/112011-09-23 → 2011-10-04
    Hazardous operations
    Brazil-northeast Coast
  41. HYDROLANT 1490/112011-09-16 → 2011-09-21
    Hazardous operations
    Brazil-southeast Coast
  42. HYDROLANT 1488/112011-09-16 → 2011-09-21
    Gunnery exercises 211300Z to 211500Z sep within ten miles of 12-30S 037-30W
    Brazil-east Coast · Gunnery
  43. HYDROLANT 1471/112011-09-14 → 2011-09-23
    Hazardous operations
    Brazil-south Coast
  44. HYDROLANT 1462/112011-09-12 → 2011-11-01
    Hazardous operations
    Brazil-northeast Coast
  45. HYDROLANT 1449/112011-09-11 → 2011-09-12
    Hazardous operations
    Brazil-northeast Coast
  46. HYDROLANT 1436/112011-09-09 → 2011-09-13
    Hazardous operations
    Brazil-northeast Coast
  47. HYDROLANT 1434/112011-09-08 → 2011-09-13
    Hazardous operations
    Brazil-northeast Coast
  48. HYDROLANT 1369/112011-08-28 → 2011-09-02
    Hazardous operations
    Brazil-southeast Coast
  49. HYDROLANT 1368/112011-08-27 → 2011-08-31
    Hazardous operations
    Brazil-south Coast
  50. HYDROLANT 1353/112011-08-24 → 2011-09-07
    Hazardous operations
    Brazil-north 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 27 · seahazards