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 1687/122012-07-25 → 2012-07-25
    Gunnery exercises 251130Z to 251400Z jul in area bound by 19-52.0S 038-50.5W, 20-04.0S 038-22.0W, 20-16.0S…
    Brazil-southeast Coast · Gunnery
  2. HYDROLANT 1535/122012-07-11 → 2012-07-21
    Gunnery exercises 1300Z to 2300Z daily 16 thru 20 jul in area bound by 35-30S 055-16W, 35-30S 055-35W,…
    Uruguay-south Coast · Gunnery
  3. HYDROLANT 1507/122012-07-08 → 2012-07-13
    Hazardous operations
    Brazil-east Coast
  4. HYDROLANT 1477/122012-07-05 → 2012-07-09
    Gunnery exercises 091100Z to 092100Z jul within 30 miles of 13-14S 035-38W
    Brazil-east Coast · Gunnery
  5. HYDROLANT 1425/122012-06-29 → 2012-07-04
    Gunnery exercises 041200Z to 041400Z jul in area bound by 32-16.8S 051-41.9W, 32-31.0S 051-25.0W, 32-42.0S…
    Brazil-south Coast · Gunnery
  6. HYDROLANT 1357/122012-06-22 → 2012-06-28
    Gunnery exercisess 272100Z to 280001Z jun within ten miles of 12-50S 037-30W
    Brazil-east Coast · Gunnery
  7. HYDROLANT 1293/122012-06-16 → 2012-06-22
    Hazardous operations
    Brazil-east Coast
  8. HYDROLANT 1291/122012-06-16 → 2012-06-23
    Hazardous operations
    Brazil-north Coast
  9. HYDROLANT 1245/122012-06-10 → 2012-06-14
    Hazardous operations
    Brazil-north Coast
  10. HYDROLANT 1231/122012-06-08 → 2012-06-13
    Hazardous operations
    Brazil-north Coast
  11. HYDROLANT 1220/122012-06-07 → 2012-06-13
    Hazardous operations
    Brazil-south Coast
  12. HYDROLANT 1083/122012-05-20 → 2012-05-24
    Hazardous operations
    Brazil-southeast Coast
  13. HYDROLANT 1042/122012-05-16 → 2012-06-01
    Hazardous operations
    Brazil-north Coast
  14. HYDROLANT 1041/122012-05-16 → 2012-06-01
    Hazardous operations
    Brazil-north Coast
  15. HYDROLANT 978/122012-05-09 → 2012-05-14
    Hazardous operations
    Brazil-northeast Coast
  16. HYDROLANT 977/122012-05-09 → 2012-05-18
    Hazardous operations
    Brazil-south Coast
  17. HYDROLANT 952/122012-05-04 → 2012-05-10
    Hazardous operations
    Brazil-southeast Coast
  18. HYDROLANT 946/122012-05-04 → 2012-05-09
    Gunnery exercises 091200Z to 091400Z may in area bound by 31-25S 050-34W, 31-29S 050-21W, 32-06S 051-09W,…
    Brazil-south Coast · Gunnery
  19. HYDROLANT 936/122012-05-03 → 2012-05-10
    Hazardous operations
    Brazil-south Coast
  20. HYDROLANT 859/122012-04-20 → 2012-04-20
    Hazardous operations
    Brazil-southeast Coast
  21. HYDROLANT 855/122012-04-19 → 2012-04-24
    Hazardous operations
    Brazil-south Coast
  22. HYDROLANT 836/122012-04-15 → 2012-04-17
    Hazardous operations
    Eastern South Atlantic
  23. HYDROLANT 835/122012-04-15 → 2012-04-27
    Gunnery exercises 202200Z to 272200Z apr within 70 miles of 25-46S 040-04W
    Western South Atlantic · Brazil-southeast Coast · Gunnery
  24. HYDROLANT 824/122012-04-14 → 2012-04-15
    Hazardous operations
    Eastern South Atlantic
  25. HYDROLANT 823/122012-04-14 → 2012-04-15
    Hazardous operations
    Eastern South Atlantic
  26. HYDROLANT 812/122012-04-12 → 2012-04-14
    Hazardous operations
    Eastern South Atlantic
  27. HYDROLANT 790/122012-04-10 → 2012-04-20
    Hazardous operations
    Brazil-southeast Coast
  28. HYDROLANT 773/122012-04-07 → 2012-04-11
    Hazardous operations
    Brazil-east Coast
  29. HYDROLANT 737/122012-04-04 → 2012-04-10
    Hazardous operations
    Brazil-south Coast
  30. HYDROLANT 699/122012-03-29 → 2012-04-04
    Hazardous operations
    Brazil-south Coast
  31. HYDROLANT 698/122012-03-29 → 2012-04-03
    Hazardous operations
    Brazil-south Coast
  32. HYDROLANT 697/122012-03-29 → 2012-04-03
    Hazardous operations
    Brazil-south Coast
  33. HYDROLANT 696/122012-03-29 → 2012-04-04
    Hazardous operations
    Brazil-south Coast
  34. HYDROLANT 690/122012-03-28 → 2012-04-04
    Hazardous operations
    Brazil-south Coast
  35. HYDROLANT 677/122012-03-26 → 2012-03-28
    Hazardous operations
    Brazil-east Coast
  36. HYDROLANT 542/122012-03-09 → 2012-03-15
    Hazardous operations
    Brazil-south Coast
  37. HYDROLANT 515/122012-03-07 → 2012-03-30
    Gunnery exercises 1000Z to 2100Z daily 12 thru 30 mar in area bound by 27-50S 048-21W, 27-47S 048-27W,…
    Brazil-south Coast · Gunnery
  38. HYDROLANT 513/122012-03-07 → 2012-03-12
    Gunnery exercises 121100Z to 122100Z mar within three miles of 07-56.5S 034-34.5W
    Brazil-northeast Coast · Gunnery
  39. HYDROLANT 512/122012-03-07 → 2012-03-07
    Gunnery exercises 1000Z to 2100Z daily 12 thru 30 mar in area bound by 27-50S 048-21W, 27-47S 048-27W,…
    Brazil-south Coast · Gunnery
  40. HYDROLANT 511/122012-03-07 → 2012-04-05
    Gunnery exercises 0800Z to 2100Z daily 12 mar thru 05 apr: a. in area bound by 05-42.53S 034-45.02W,…
    Brazil-northeast Coast · Gunnery
  41. HYDROLANT 508/122012-03-06 → 2012-03-06
    Hazardous operations
    Brazil-east Coast
  42. HYDROLANT 423/122012-02-24 → 2012-02-29
    Hazardous operations
    Brazil-southeast Coast
  43. HYDROLANT 397/122012-02-20 → 2012-02-24
    Hazardous operations
    South Atlantic
  44. HYDROLANT 312/122012-02-08 → 2012-02-16
    Hazardous operations
    Brazil-south Coast
  45. HYDROLANT 151/122012-01-20 → 2012-01-25
    Hazardous operations
    Brazil-south Coast
  46. HYDROLANT 150/122012-01-20 → 2012-01-26
    Hazardous operations
    Brazil-southeast Coast
  47. HYDROLANT 142/122012-01-19 → 2012-01-25
    Hazardous operations
    Brazil-south Coast
  48. HYDROLANT 66/122012-01-08 → 2012-01-14
    Hazardous operations
    Brazil-south Coast
  49. HYDROLANT 2168/112011-12-16 → 2011-12-21
    Hazardous operations
    Brazil-east Coast
  50. HYDROLANT 2159/112011-12-15 → 2011-12-21
    Gunnery exercises 201000Z to 201900Z and 211300Z to 211600Z dec within ten miles of 05-30S 034-50W
    Brazil-northeast Coast · Gunnery

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 26 · seahazards