Aids-to-navigation notices in the Inner Seas off the West Coast of Scotland

Lights extinguished, buoys off station, RACON/NAVTEX outages.

in force
2
last 12 months
2
vs previous 12 (1)
+100%
since 1998
951

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 · 2

  1. HYDROLANT 1552/26in force2026-08-11
    Mew Island Light at 54-41.90N 005-30.80W in North Channel, Ireland, is unreliable.
    North Channel · Ireland
  2. HYDROLANT 1532/26in force2026-08-08
    MF DSC service is off air at Tiree in the Sea of the Hebrides, Scotland, at 56-30.20N 006-57.80W.
    Sea of the Hebrides · Scotland

Longest in force

  1. HYDROLANT 1532/26in force2026-08-08 · 14 d
    MF DSC service is off air at Tiree in the Sea of the Hebrides, Scotland, at 56-30.20N 006-57.80W.
    Sea of the Hebrides · Scotland
  2. HYDROLANT 1552/26in force2026-08-11 · 10 d
    Mew Island Light at 54-41.90N 005-30.80W in North Channel, Ireland, is unreliable.
    North Channel · Ireland

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 Inner Seas off the West Coast of Scotland

Archive · 949 cancelled

  1. HYDROLANT 2546/202020-08-17 → 2020-08-18
    Dubh artach light 56-08.0N 006-38.1W AIS unreliable
    Sea of the Hebrides · Scotland
  2. HYDROLANT 1660/202020-05-15 → 2020-07-31
    Cgoc belfast mf dsc and r/t services at tiree site 56-30.2N 006-57.9W off air
    Sea of Hebrides · Scotland
  3. HYDROLANT 1448/202020-04-28 → 2020-04-30
    Eilean glas light 57-51.4N 006-38.5W RACON inoperative
    North Minch · Scotland
  4. HYDROLANT 1276/202020-04-09 → 2020-04-10
    RACON at dubh sgeir light 56-14.8N 005-40.2W inoperative
    Sea of the Hebrides · Scotland
  5. HYDROLANT 1072/202020-03-23 → 2020-03-30
    GPS jamming exercises 28 mar thru 09 apr in areas within: a. 30 miles of 57-52N 005-41W between 285 degrees…
    Eastern North Atlantic · North Minch · Scotland
  6. HYDROLANT 1039/202020-03-19 → 2020-04-30
    Cgoc belfast mf dsc and r/t services at tiree site 56-30.2N 006-57.9W unreliable
    Sea of Hebrides · Scotland
  7. HYDROLANT 761/202020-02-29 → 2020-03-03
    RACON at mew island light 54-41.9N 005-30.8W unreliable
    North Channel · Northern Ireland
  8. HYDROLANT 425/202020-02-07 → 2020-02-07
    RACON at eilean glas light 57-51.4N 006-38.5W inoperative
    North Minch · Scotland
  9. HYDROLANT 414/202020-02-06 → 2020-03-19
    Cgoc belfast mf dsc and r/t services at tiree site 56-30.2N 006-57.9W unreliable
    Sea of Hebrides · Scotland
  10. HYDROLANT 339/202020-01-31 → 2020-02-01
    Oigh sgeir light 56-58.1N 006-40.8W unreliable
    Sea of Hebrides · Scotland
  11. HYDROLANT 3965/192019-12-26 → 2020-02-06
    Cgoc belfast mf dsc and r/t services at tiree site 56-30.2N 006-57.9W unreliable
    Sea of Hebrides · Scotland
  12. HYDROLANT 3814/192019-12-12 → 2021-07-02
    Butt of lewis light 58-30.9N 006-15.7W temporarily changed to fl 5 sec, 37 meters, 12 miles
    Eastern North Atlantic · Scotland
  13. HYDROLANT 3617/192019-11-25 → 2019-11-26
    Eyre point light 57-20.0N 006-01.3W unlit
    North Minch · Scotland
  14. HYDROLANT 3513/192019-11-15 → 2019-11-19
    RACON at east maiden light 54-55.7N 005-43.7W inoperative
    North Channel · Northern Ireland
  15. HYDROLANT 3497/192019-11-14 → 2019-12-26
    Cgoc belfast mf dsc and r/t services at tiree site 56-30.2N 006-57.9W unreliable
    Sea of Hebrides · Scotland
  16. HYDROLANT 3461/192019-11-10 → 2019-11-11
    Trodday light 57-43.6N 006-17.9W inoperative
    North Minch · Scotland
  17. HYDROLANT 3335/192019-10-31 → 2019-11-01
    RACON at eilean glas light 57-51.4N 006-38.5W inoperative
    North Minch · Scotland
  18. HYDROLANT 3242/192019-10-23 → 2019-10-24
    Donaghadee harbor light 54-38-42N 005-31-51W unreliable 231000Z to 241400Z oct
    North Channel · Northern Ireland
  19. HYDROLANT 3218/192019-10-21 → 2019-10-23
    Rathlin east light 55-18.1N 006-10.3W unreliable until 22 oct
    North Channel · Northern Ireland
  20. HYDROLANT 3166/192019-10-17 → 2019-10-18
    Black head 54-46.0N 005-41.3W light unreliable
    North Channel · Northern Ireland
  21. HYDROLANT 3020/192019-10-04 → 2019-10-18
    GPS jamming exercises 05 thru 17 oct during daylight hours in areas within: a. 36 miles of 58-36.2N…
    North Minch · Scotland
  22. HYDROLANT 3019/192019-10-03 → 2019-11-14
    Cgoc belfast mf dsc and r/t services at tiree site 56-30.2N 006-57.9W unreliable
    Sea of Hebrides · Scotland
  23. HYDROLANT 2567/192019-08-23 → 2019-08-29
    RACON at east maiden light 54-55.7N 005-43.7W unreliable
    North Channel · Northern Ireland
  24. HYDROLANT 2565/192019-08-23 → 2019-10-03
    Cgoc belfast mf dsc and r/t services at tiree site 56-30.2N 006-57.9W unreliable
    Sea of Hebrides · Scotland
  25. HYDROLANT 2512/192019-08-18 → 2019-08-22
    East maiden light 54-55.7N 005-43.7W unreliable
    North Channel · Northern Ireland
  26. HYDROLANT 2335/192019-07-30 → 2019-08-21
    Cgoc stornoway mf r/t and dsc services at butt of lewis 58-27.7N 006-13.9W unreliable
    Eastern North Atlantic · North Minch · Scotland
  27. HYDROLANT 2307/192019-07-28 → 2019-08-15
    Cgoc belfast mf r/t and dsc services at tiree site 56-30N 006-48W off air
    Sea of Hebrides · Scotland
  28. HYDROLANT 2241/192019-07-23 → 2019-08-03
    Butt of lewis light 58-30.9N 006-15.7W unreliable
    Eastern North Atlantic · Scotland
  29. HYDROLANT 1822/192019-06-18 → 2019-08-02
    Cgoc stornoway mf dsc and r/t services at butt of lewis 58-27.7N 006-13.9W unreliable
    Eastern North Atlantic · Scotland
  30. HYDROLANT 1809/192019-06-16 → 2019-07-28
    Cgoc belfast mf r/t and dsc services at tiree site 56-30N 006-48W off air
    Sea of Hebrides · Scotland
  31. HYDROLANT 1409/192019-05-07 → 2019-05-09
    Butt of lewis light 58-30.9N 006-15.7W unlit
    Eastern North Atlantic · Scotland
  32. HYDROLANT 1403/192019-05-07 → 2019-06-18
    Cgoc stornoway mf dsc and r/t services at butt of lewis 58-30N 006-16W unreliable
    Eastern North Atlantic · Scotland
  33. HYDROLANT 1108/192019-04-08 → 2019-04-11
    AIS at mew island light 54-41.9N 005-30.8W unreliable
    North Channel · Northern Ireland
  34. HYDROLANT 1101/192019-04-08 → 2019-04-10
    RACON at eilean glas light 57-51.4N 006-38.5W unreliable 0800Z to 1700Z daily 08 and 09 apr
    North Minch · Scotland
  35. HYDROLANT 1035/192019-04-02 → 2019-04-09
    Cgoc stornoway mf dsc and r/t services at butt of lewis 58-30N 006-16W unreliable
    Eastern North Atlantic · Scotland
  36. HYDROLANT 1017/192019-03-30 → 2019-04-12
    GPS jamming exercises 31 mar thru 11 apr during daylight hours in areas within: a. 36 miles of 58-36.2N…
    North Minch · Scotland
  37. HYDROLANT 933/192019-03-24 → 2019-03-29
    Cgoc belfast mf r/t and dsc services at tiree site 56-30.2N 006-57.9W off air
    Sea of the Hebrides · Scotland
  38. HYDROLANT 840/192019-03-16 → 2019-03-16
    Rona light 57-34.7N 005-57.5W unreliable
    North Minch · Scotland-west Coast
  39. HYDROLANT 628/192019-02-26 → 2019-02-27
    Cgoc stornoway dsc and r/t services at torosay site 56-27.5N 005-43.8W unreliable
    Sea of the Hebrides · Scotland
  40. HYDROLANT 554/192019-02-20 → 2019-02-21
    Dubh artach light 56-08.0N 006-38.1W unreliable
    Sea of the Hebrides · Scotland
  41. HYDROLANT 551/192019-02-20 → 2019-02-20
    Dubh artach light 56-08.0N 006-38.1W unlit
    Sea of the Hebrides · Scotland
  42. HYDROLANT 448/192019-02-10 → 2019-03-24
    Cgoc belfast mf r/t and dsc services at tiree site 56-30.2N 006-57.9W off air
    Sea of the Hebrides · Scotland
  43. HYDROLANT 335/192019-02-01 → 2019-02-15
    GPS jamming exercises 0900Z to 1600Z daily 04 thru 15 feb in area within 70 miles of 57-28.4N 005-52.3W
    Eastern North Atlantic · Sea of the Hebrides · North Minch · Scotland
  44. HYDROLANT 300/192019-01-30 → 2019-01-30
    Oigh sgeir light 56-58.1N 006-40.8W unreliable
    Sea of Hebrides · Scotland
  45. HYDROLANT 4072/182018-12-30 → 2019-02-10
    Mf r/t and dsc services at tiree site 56-30.2N 006-57.9W off air
    Sea of the Hebrides · Scotland
  46. HYDROLANT 3955/182018-12-19 → 2019-03-15
    Rubha reidh light 57-51.5N 005-48.7W range permanently changed to 18 miles
    North Minch · Scotland
  47. HYDROLANT 3875/182018-12-12 → 2018-12-19
    Rubha reidh light 57-51.5N 005-48.7W range permanently changed to 18 miles
    North Minch · Scotland
  48. HYDROLANT 3694/182018-11-28 → 2018-11-28
    Dgps station at butt of lewis light 58-30.9N 006-15.7W off air 281000Z to 281500Z nov
    Eastern North Atlantic · Scotland
  49. HYDROLANT 3651/182018-11-23 → 2018-11-24
    East maiden light 54-55.7N 005-43.7W unreliable
    North Channel · Northern Ireland
  50. HYDROLANT 3580/182018-11-18 → 2018-12-30
    Mf r/t and dsc services at tiree site 56-30.2N 006-57.9W off air
    Sea of the Hebrides · Scotland

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.

Aids-to-navigation notices in the Inner Seas off the West Coast of Scotland — page 4 · seahazards