Military exercises in the North Atlantic Ocean

Gunnery, firing and naval exercise areas.

in force
0
last 12 months
2
vs previous 12 (3)
-33%
since 1998
2,079

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 · 0

No military exercises in force in the North Atlantic Ocean right now.

By year

98
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 North Atlantic Ocean

Archive · 2,079 cancelled

  1. HYDROLANT 1618/262026-08-19 → 2026-08-19
    Hazardous operations take place daily 0800Z to 1830Z from 24 to 28 August and 31 August to 4 September near two positions off Scotland, cancelling HYDROLANT 1610/26.
    North Atlantic · Scotland
  2. HYDROLANT 1595/262026-08-17 → 2026-08-19
    Hazardous operations daily from 0700 UTC to 1700 UTC on 18 through 21 August within 17 miles of 57-24.90N 007-59.70W near Scotland.
    North Atlantic · Scotland
  3. HYDROLANT 2076/242024-09-27 → 2026-08-17
    Hazardous operations occur daily from 0800Z to 1900Z, 30 September through 4 October, within 60 miles of 57°17'N 009°18'W in the Eastern North Atlantic near Scotland.
    Eastern North Atlantic · Scotland
  4. HYDROLANT 1884/242024-08-27 → 2026-08-17
    Hazardous operations take place daily from 0700 UTC to 1800 UTC, September 1 through December 31, in three areas off Morocco in the eastern North Atlantic.
    Eastern North Atlantic · Morocco
  5. HYDROLANT 1863/242024-08-23 → 2026-08-17
    Hazardous operations are in progress off Morocco until 31 December within a defined area.
    Eastern North Atlantic · Morocco
  6. HYDROLANT 767/242024-04-11 → 2024-05-01
    Hazardous operations 150001Z to 302359Z apr in areas bound by: a. 33-41.00N 008-03.00W, 33-41.00N…
    Eastern North Atlantic · Morocco
  7. HYDROLANT 755/242024-04-10 → 2024-04-11
    Gunnery exercises 150001Z to 302359Z apr in areas within 20 miles of: a. 33-41.00N 008-03.00W
    Eastern North Atlantic · Morocco
  8. HYDROLANT 568/242024-03-18 → 2024-03-19
    Hazardous operations 0900Z to 1900Z daily 19 thru 22 mar in area within 55 miles of 57-34.00N 010-32.00W
    Eastern North Atlantic · Scotland
  9. HYDROLANT 521/242024-03-13 → 2024-03-18
    Hazardous operations 0900Z to 1900Z daily 18 thru 22 mar in area within 70 miles of 56-53.00N 009-46.00W
    Eastern North Atlantic · Sea of the Hebrides · Scotland
  10. NAVAREA IV 276/242024-03-13 → 2024-03-22
    Hazardous operations 181000Z to 190100Z, 191000Z to 200100Z, 201000Z to 201630Z, 211000Z to 220100Z and…
    Western North Atlantic · French Guiana
  11. NAVAREA IV 253/242024-03-06 → 2024-03-14
    Hazardous operations 1200Z to 1500Z and 1800Z to 2030Z daily 11 thru 14 mar in area within five miles of…
    Western North Atlantic · French Guiana
  12. HYDROLANT 370/242024-02-22 → 2024-02-22
    Hazardous operations 220800Z to 221700Z feb in area within 40 miles of 46-00.00N 006-40.00W
    Bay of Biscay · Eastern North Atlantic
  13. HYDROLANT 334/242024-02-17 → 2024-02-19
    Gunnery exercises 191200Z to 191700Z feb in area within 30 miles of 12-44.00N 017-47.00W
    Eastern North Atlantic · Senegal
  14. NAVAREA IV 180/242024-02-16 → 2024-02-20
    Hazardous operations 201700Z to 201900Z feb in area within three miles of 04-53.07N 052-12.69W
    Western North Atlantic · French Guiana
  15. HYDROLANT 282/242024-02-09 → 2024-02-13
    Hazardous operations 130900Z to 131800Z feb in area within 40 miles of 46-39.76N 009-00.00W
    Eastern North Atlantic
  16. NAVAREA IV 141/242024-02-08 → 2024-02-13
    Hazardous operations 131100Z to 131300Z feb in area within three miles of 04-53.07N 052-12.69W
    Western North Atlantic · French Guiana
  17. NAVAREA IV 115/242024-02-02 → 2024-02-07
    Hazardous operations 071100Z to 072200Z feb in area bound by 05-27.40N 052-40.00W, 05-27.40N 052-32.70W,…
    Western North Atlantic · French Guiana
  18. NAVAREA IV 89/242024-01-29 → 2024-02-04
    Hazardous operations 302100Z jan to 040356Z feb in areas bound by: a. 29-00.00N 079-56.00W, 29-05.00N…
    North Atlantic · Western North Atlantic
  19. HYDROLANT 214/242024-01-29 → 2024-02-04
    Hazardous operations 302100 to 040356 feb in areas bound by: a. 29-00.00N 079-56.00W, 29-05.00N 079-35.00W,…
    North Atlantic · Western North Atlantic
  20. HYDROLANT 213/242024-01-28 → 2024-01-29
    Hazardous operations 302100 to 040356 feb in areas bound by: a. 29-00.00N 079-56.00W, 29-05.00N 079-35.00W,…
    North Atlantic · Western North Atlantic
  21. NAVAREA IV 88/242024-01-28 → 2024-01-29
    Hazardous operations 302100 to 040356 feb in areas bound by: a. 29-00.00N 079-56.00W, 29-05.00N 079-35.00W,…
    North Atlantic · Western North Atlantic
  22. HYDROLANT 203/242024-01-27 → 2024-02-01
    Hazardous operations 011100Z to 011500Z feb 24 in area within three miles of 04-56.00N 052-05.00W
    Western North Atlantic · French Guiana
  23. NAVAREA IV 64/242024-01-19 → 2024-01-23
    Hazardous operations 231100Z to 232100Z jan in areas: a. within 15 miles of 06-00.00N 052-30.00W
    Western North Atlantic · French Guiana
  24. HYDROLANT 136/242024-01-17 → 2024-03-10
    Gunnery exercises 220700Z jan to 101800Z mar in areas bound by: a. 29-53.00N 010-15.00W, 29-53.03N…
    Eastern North Atlantic · Western Sahara
  25. NAVAREA IV 55/242024-01-17 → 2024-01-26
    Hazardous operations 221000Z to 261630Z jan in area within three miles of 05-04.99N 052-00.10W
    Western North Atlantic · French Guiana
  26. NAVAREA IV 19/242024-01-05 → 2024-01-10
    Hazardous operations 101200Z to 101500Z jan in area within three miles of 04-56.00N 052-05.00W
    Western North Atlantic · French Guiana
  27. HYDROLANT 2902/232023-12-18 → 2023-12-20
    Hazardous operations 200800Z to 201600Z dec in area within 40 miles of 46-00.00N 006-00.00W
    Bay of Biscay
  28. NAVAREA IV 1439/232023-12-13 → 2023-12-18
    Hazardous operations 181000Z to 181500Z dec in area within three miles of 04-56.00N 052-05.00W
    Western North Atlantic · French Guiana
  29. NAVAREA IV 1405/232023-12-04 → 2023-12-08
    Hazardous operations 081030Z to 081400Z dec in area bound by 05-27.40N 052-40.00W, 05-27.40N 052-32.70W,…
    Western North Atlantic · French Guiana
  30. HYDROLANT 2776/232023-12-01 → 2023-12-06
    Hazardous operations 050900Z to 062100Z dec in area bound by 00-28.00N 048-02.00W, 00-28.00N 048-12.00W,…
    Western North Atlantic · Brazil
  31. HYDROLANT 2730/232023-11-26 → 2023-11-29
    Gunnery exercises 290900Z to 291200Z nov in area within 50 miles of 14-28.0N 017-52.0W
    Eastern North Atlantic · Senegal
  32. NAVAREA IV 1353/232023-11-22 → 2023-12-01
    Hazardous operations 1400Z to 1630Z daily 27 nov thru 01 dec in area within three miles of 05-05.00N…
    Western North Atlantic · French Guiana
  33. HYDROLANT 2646/232023-11-17 → 2023-11-21
    Hazardous operations 210800Z to 211800Z nov in area within 40 miles of 45-40.00N 006-20.00W
    Bay of Biscay
  34. NAVAREA IV 1335/232023-11-17 → 2023-11-20
    Hazardous operations 0001Z to 1200Z and 1800Z to 2359Z daily 16 nov thru 01 dec in area within 80 miles of…
    Western North Atlantic
  35. HYDROLANT 2617/232023-11-15 → 2023-11-18
    Gunnery exercises 181200Z to 181600Z nov in area within 50 miles of 14-28.00N 017-52.00W
    Eastern North Atlantic · Senegal
  36. NAVAREA IV 1325/232023-11-15 → 2023-11-23
    Hazardous operations 231200Z to 231500Z nov in area within three miles of 04-56.00N 052-05.00W
    Western North Atlantic · French Guiana
  37. HYDROLANT 2579/232023-11-10 → 2023-11-14
    Gunnery exercises 140800Z to 141200Z nov in area within nine miles of 14-28.00N 017-52.00W
    Eastern North Atlantic · Senegal
  38. HYDROLANT 2577/232023-11-10 → 2023-11-10
    Gunnery exercises 140800Z to 141300Z nov in area within nine miles of 14-28.00N 017-52.00W
    Eastern North Atlantic · Senegal
  39. HYDROLANT 2527/232023-11-04 → 2023-11-10
    Hazardous operations 0900Z to 2230Z daily 06 thru 10 nov in area within 16 miles of 57-27.00N 007-56.00W
    Eastern North Atlantic · Scotland
  40. HYDROLANT 2521/232023-11-04 → 2023-11-09
    Hazardous operations 090800Z to 092100Z nov in areas bound by: a. 00-10.00N 048-02.00W, 00-10.00N…
    Western North Atlantic · Brazil
  41. HYDROLANT 2519/232023-11-03 → 2023-11-05
    Gunnery exercises 051300Z to 051700Z jun in area within 12 miles of 14-28.00N 017-52.00W
    Eastern North Atlantic · Senegal
  42. NAVAREA IV 1273/232023-11-02 → 2023-11-17
    Hazardous operations 0200Z to 1200Z daily 06 nov thru 01 dec in area within 80 miles of 39-21.36N 057-43.60W
    Western North Atlantic
  43. HYDROLANT 2498/232023-11-02 → 2023-12-01
    Hazardous operations 0200Z to 1200Z daily 06 nov thru 01 dec in areas bound by: a. 44-26.33N 001-15.67W,…
    Bay of Biscay · North Atlantic · France
  44. NAVAREA IV 1259/232023-10-30 → 2023-11-03
    Hazardous operations 031200Z to 031500Z nov in area within three miles of 04-56.00N 052-05.00W
    Western North Atlantic · French Guiana
  45. HYDROLANT 2472/232023-10-30 → 2023-11-03
    Hazardous operations 0900Z to 2230Z daily 31 oct thru 03 nov in area within 16 miles of 57-27.00N 007-56.00W
    Eastern North Atlantic · Scotland
  46. NAVAREA IV 1256/232023-10-30 → 2023-11-03
    Hazardous operations 031200Z to 031500Z nov in area within three miles of 04-56.00N 052-05.00W
    Western North Atlantic · French Guiana
  47. HYDROLANT 2431/232023-10-25 → 2023-10-27
    Gunnery exercises 271300Z to 271800Z oct in area within 12 miles of 14-28.00N 017-52.00W
    Eastern North Atlantic · Senegal
  48. NAVAREA IV 1235/232023-10-24 → 2023-10-26
    Hazardous operations 261500Z to 281840Z oct
    North Atlantic · Florida
  49. NAVAREA IV 1233/232023-10-24 → 2023-10-26
    Hazardous operations 261200Z to 261500Z oct in area within three miles of 04-56.00N 052-05.00W
    Western North Atlantic · French Guiana
  50. NAVAREA IV 1222/232023-10-21 → 2023-10-24
    Hazardous operations 261200Z to 261500Z oct in area within three miles of 04-56.00N 052-05.00W
    Western North Atlantic · Brazil · French Guiana

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 North Atlantic Ocean · seahazards