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 2398/162016-09-15 → 2016-09-22
    Hazardous operations
    Brazil-northeast Coast
  2. HYDROLANT 2352/162016-09-09 → 2016-09-14
    Hazardous operations
    Brazil-south Coast
  3. HYDROLANT 2351/162016-09-09 → 2016-10-28
    Gunnery exercises 0830Z to 2030Z daily 15 sep thru 28 oct: a. in area bound by 05-42.53S 034-45.02W,…
    Brazil-northeast Coast · Gunnery
  4. HYDROLANT 2274/162016-09-03 → 2016-09-08
    Hazardous operations
    Brazil-northeast Coast
  5. HYDROLANT 2273/162016-09-03 → 2016-09-09
    Hazardous operations
    Brazil-southeast Coast
  6. HYDROLANT 2181/162016-08-25 → 2016-08-25
    Hazardous operations
    Brazil-east Coast
  7. HYDROLANT 2161/162016-08-23 → 2016-08-25
    Hazardous operations
    Brazil-east Coast
  8. HYDROLANT 2105/162016-08-18 → 2016-08-23
    Hazardous operations
    Brazil-southeast Coast
  9. HYDROLANT 1845/162016-07-21 → 2016-07-26
    Hazardous operations
    Brazil-south Coast
  10. HYDROLANT 1806/162016-07-17 → 2016-07-21
    Hazardous operations
    Brazil-southeast Coast
  11. HYDROLANT 1727/162016-07-09 → 2016-07-14
    Hazardous operations
    Brazil-northeast Coast
  12. HYDROLANT 1712/162016-07-08 → 2016-07-15
    Hazardous operations
    Brazil-northeast Coast
  13. HYDROLANT 1582/162016-06-23 → 2016-06-30
    Hazardous operations DNC 01
    Brazil-southeast Coast
  14. HYDROLANT 1570/162016-06-22 → 2016-06-29
    Hazardous operations
    Brazil-northeast Coast
  15. HYDROLANT 1550/162016-06-21 → 2016-06-21
    Hazardous operations
    Brazil-southeast Coast
  16. HYDROLANT 1541/162016-06-20 → 2016-06-24
    Hazardous operations DNC 01, DNC 07
    Brazil-south Coast
  17. HYDROLANT 1509/162016-06-17 → 2016-06-21
    Hazardous operations
    Brazil-south Coast
  18. HYDROLANT 1499/162016-06-16 → 2016-06-21
    Hazardous operations
    Brazil-southeast Coast
  19. HYDROLANT 1485/162016-06-15 → 2016-06-24
    Hazardous operations
    Brazil-northeast Coast
  20. HYDROLANT 1481/162016-06-14 → 2016-06-15
    Hazardous operations
    Brazil-east Coast
  21. HYDROLANT 1439/162016-06-11 → 2016-06-16
    Hazardous operations
    Brazil-east Coast
  22. HYDROLANT 1421/162016-06-10 → 2016-06-14
    Hazardous operations
    Brazil-east Coast
  23. HYDROLANT 1360/162016-06-04 → 2016-06-10
    Hazardous operations
    Brazil-southeast Coast
  24. HYDROLANT 1345/162016-06-02 → 2016-06-08
    Hazardous operations
    Brazil-east Coast
  25. HYDROLANT 1088/162016-05-06 → 2016-05-13
    Hazardous operations
    Brazil-southeast Coast
  26. HYDROLANT 932/162016-04-20 → 2016-04-28
    Hazardous operations
    Brazil-northeast Coast
  27. HYDROLANT 931/162016-04-20 → 2016-04-28
    Hazardous operations
    Brazil-northeast Coast
  28. HYDROLANT 901/162016-04-15 → 2016-04-20
    Hazardous operations
    Brazil-south Coast
  29. HYDROLANT 883/162016-04-13 → 2016-04-21
    Hazardous operations
    Brazil-south Coast
  30. HYDROLANT 858/162016-04-11 → 2016-04-15
    Hazardous operations
    Brazil-south Coast
  31. HYDROLANT 841/162016-04-09 → 2016-04-17
    Hazardous operations
    Brazil-south Coast
  32. HYDROLANT 833/162016-04-08 → 2016-04-15
    Hazardous operations
    Brazil-southeast Coast
  33. HYDROLANT 831/162016-04-08 → 2016-04-12
    Hazardous operations
    Brazil-southeast Coast
  34. HYDROLANT 822/162016-04-07 → 2016-04-14
    Hazardous operations
    Brazil-southeast Coast
  35. HYDROLANT 738/162016-03-27 → 2016-03-28
    Hazardous operations
    Brazil-southeast Coast
  36. HYDROLANT 719/162016-03-25 → 2016-04-01
    Hazardous operations
    Brazil-southeast Coast
  37. HYDROLANT 654/162016-03-17 → 2016-03-22
    Hazardous operations
    Brazil-east Coast
  38. HYDROLANT 619/162016-03-13 → 2016-03-16
    Hazardous operations
    Eastern South Atlantic
  39. HYDROLANT 604/162016-03-12 → 2016-03-13
    Hazardous operations
    Eastern South Atlantic
  40. HYDROLANT 570/162016-03-09 → 2016-03-15
    Hazardous operations
    Brazil-northeast Coast
  41. HYDROLANT 521/162016-03-02 → 2016-03-10
    Gunnery exercises 0830Z to 2030Z daily 07 thru 25 mar: a. in area bound by 05-42.53S 034-45.02W, 06-09.83S…
    Brazil-northeast Coast · Gunnery
  42. HYDROLANT 496/162016-02-29 → 2016-03-04
    Hazardous operations
    Brazil-southeast Coast
  43. HYDROLANT 412/162016-02-18 → 2016-02-26
    Hazardous operations
    Brazil-northeast Coast
  44. HYDROLANT 411/162016-02-18 → 2016-02-26
    Hazardous operations
    Brazil-northeast Coast
  45. HYDROLANT 366/162016-02-12 → 2016-02-19
    Gunnery exercises 0900Z to 2300Z daily 15 thru 18 feb in area bound by 39-40S 058-37W, 39-40S 057-00W,…
    Western South Atlantic · Argentina · Gunnery
  46. HYDROLANT 218/162016-01-26 → 2016-01-29
    Hazardous operations
    Brazil-southeast Coast
  47. HYDROLANT 212/162016-01-25 → 2016-01-27
    Hazardous operations
    Brazil-south Coast
  48. HYDROLANT 197/162016-01-22 → 2016-01-27
    Hazardous operations
    Brazil-south Coast
  49. HYDROLANT 190/162016-01-22 → 2016-01-27
    Hazardous operations
    Brazil-south Coast
  50. HYDROLANT 183/162016-01-22 → 2016-01-26
    Hazardous operations
    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 18 · seahazards