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 2660/212021-10-29 → 2021-11-05
    Dubh artach light 56-07-57N 006-38-05W unreliable
    Sea of Hebrides · Scotland
  2. HYDROLANT 2620/212021-10-24 → 2021-10-24
    Donaghadee harbor light 54-38.7N 005-31.9W unreliable 241800Z to 242300Z oct
    North Channel · Northern Ireland
  3. HYDROLANT 2616/212021-10-23 → 2021-10-23
    Donaghadee harbor light 54-38.7N 005-31.9W unreliable 231800Z to 232300Z oct
    North Channel · Northern Ireland
  4. HYDROLANT 2575/212021-10-19 → 2021-10-20
    Cgoc stornoway mf dsc and r/t services at butt of lewis site 58-27.7N 006-13.9W off air
    Eastern North Atlantic · North Minch · Scotland
  5. HYDROLANT 2387/212021-09-23 → 2021-09-23
    RACON at rathlin east light 55-18.1N 006-10.3W inoperative until 231200Z sep 21
    North Channel · Northern Ireland
  6. HYDROLANT 2362/212021-09-19 → 2021-09-29
    GPS jamming exercises 0600Z to 1900Z daily 20 thru 29 sep in area within 32 miles of 57-52N 005-41W between…
    North Minch · Scotland
  7. HYDROLANT 2262/212021-09-03 → 2021-09-04
    Cgoc stornoway mf dsc and r/t services at rodel site 57-44.9N 006-57.4W off air
    Eastern North Atlantic · North Minch · Scotland
  8. HYDROLANT 2047/212021-08-06 → 2021-08-06
    Black head light 54-46-00N 005-41-20W unreliable
    North Channel · Northern Ireland
  9. HYDROLANT 1602/212021-06-15 → 2021-06-18
    East maiden light 54-55.7N 005-43.7W unreliable
    North Channel · Northern Ireland
  10. HYDROLANT 1507/212021-06-05 → 2021-06-10
    RACON at mew island light 54-41.9N 005-30.8W unreliable
    North Channel · Northern Ireland
  11. HYDROLANT 1401/212021-05-25 → 2021-06-16
    Donaghadee harbor light 54-38.7N 005-31.9W range reduced to 13 miles (white) and ten miles (red) until 15 jun
    North Channel · Northern Ireland
  12. HYDROLANT 1396/212021-05-24 → 2021-05-25
    Donaghadee harbor light 54-38.7N 005-31.9W unreliable
    North Channel · Northern Ireland
  13. HYDROLANT 1391/212021-05-24 → 2021-05-27
    All navigational aids at skerryvore light 56-19.4N 007-06.8W inoperative
    Sea of the Hebrides · Scotland
  14. HYDROLANT 1388/212021-05-24 → 2021-06-09
    Lights unreliable until 08 jun: a. rathlin east light 55-18.1N 006-10.3W
    North Channel · Northern Ireland
  15. HYDROLANT 1330/212021-05-16 → 2021-05-17
    Cairns of coll suil ghorm light 56-42-17N 006-26-44W unlit
    Sea of the Hebrides · Scotland
  16. HYDROLANT 1276/212021-05-09 → 2021-05-20
    GPS jamming exercises 0700Z to 1900Z daily 09 thru 20 may in area within 30 miles of 57-51N 005-48W
    North Minch · Scotland
  17. HYDROLANT 1270/212021-05-09 → 2021-05-09
    GPS jamming exercises 0700Z to 1900Z daily 09 thru 19 may in area within 30 miles of 57-52N 005-41W between…
    North Minch · Scotland
  18. HYDROLANT 1269/212021-05-09 → 2021-05-09
    GPS jamming exercises 0700Z to 1900Z daily 09 thru 19 may in area within 28 miles of 57-52N 005-41W between…
    North Minch · Scotland
  19. HYDROLANT 1260/212021-05-07 → 2021-05-08
    Cairns of coll light 56-42.3N 006-26.7W unlit
    Sea of the Hebrides · Scotland
  20. HYDROLANT 1053/212021-04-18 → 2021-04-18
    GPS jamming exercises 180700Z to 181700Z in areas within: a. three miles of 57-22N 007-13W
    Eastern North Atlantic · Little Minch · Scotland
  21. HYDROLANT 1019/212021-04-14 → 2021-04-22
    Uiginish point light 57-26.8N 006-36.6W unreliable
    Little Minch · Scotland
  22. HYDROLANT 685/212021-03-09 → 2021-03-16
    Dubh artach light 56-07-58N 006-38-05W unreliable
    Sea of the Hebrides · Scotland
  23. HYDROLANT 661/212021-03-06 → 2021-03-15
    Skerryvore light 56-19.4N 007-06.8W unlit and RACON inoperative
    Sea of the Hebrides · Scotland
  24. HYDROLANT 648/212021-03-05 → 2021-03-06
    Skerryvore light 56-19.4N 007-06.8W unlit and RACON inoperative
    Sea of the Hebrides · Scotland
  25. HYDROLANT 638/212021-03-05 → 2021-03-05
    Skerryvore light 56-19.4N 007-06.8W unlit
    Sea of the Hebrides · Scotland
  26. HYDROLANT 633/212021-03-04 → 2021-03-05
    Skerryvore light 56-19.4N 007-06.8W unreliable
    Sea of the Hebrides · Scotland
  27. HYDROLANT 621/212021-03-04 → 2021-03-05
    Rubha reidh light 57-51.5N 005-48.7W unreliable
    North Minch · Scotland
  28. HYDROLANT 606/212021-03-02 → 2021-03-30
    Cgoc belfast mf r/t services at tiree site 56-30.2N 006-57.9W off air
    Sea of Hebrides · Scotland
  29. HYDROLANT 301/212021-02-02 → 2021-02-09
    NAVTEX station portpatrick (o) 54-50.6N 005-07.5W off air
    North Channel · Scotland
  30. HYDROLANT 231/212021-01-26 → 2021-01-27
    Dubh artach light 56-08.0N 006-38.1W unlit
    Sea of the Hebrides · Scotland
  31. HYDROLANT 52/212021-01-08 → 2021-01-13
    Dubh artach light 56-08.0N 006-38.1W unreliable
    Sea of the Hebrides · Scotland
  32. HYDROLANT 33/212021-01-05 → 2021-01-11
    Toward point light 55-51.7N 004-58.8W unlit
    North Channel · Scotland
  33. HYDROLANT 5/212021-01-02 → 2021-01-04
    East maiden light 54-55.7N 005-43.7W unreliable
    North Channel · Northern Ireland
  34. HYDROLANT 3942/202020-12-22 → 2020-12-23
    NAVTEX station portpatrick (o) 54-50.6N 005-07.5W off air 0900Z to 1530Z daily 22 and 23 dec
    North Channel · Scotland
  35. HYDROLANT 3772/202020-12-04 → 2020-12-30
    Cgoc stornoway mf r/t service at butt of lewis site 58-27.7N 006-13.9W off air
    Eastern North Atlantic · North Minch · Scotland
  36. HYDROLANT 3761/202020-12-02 → 2020-12-30
    Cgoc belfast mf dsc and r/t services at tiree site 56-30.2N 006-57.9W unreliable
    Sea of the Hebrides · Scotland
  37. HYDROLANT 3530/202020-11-13 → 2020-11-15
    Skerryvore light 56-19.4N 007-06.8W unreliable and RACON inoperative
    Sea of the Hebrides · Scotland
  38. HYDROLANT 3520/202020-11-12 → 2020-11-13
    Skerryvore light 56-19.4N 007-06.8W unreliable and RACON inoperative
    Sea of the Hebrides · Scotland
  39. HYDROLANT 3516/202020-11-12 → 2020-11-12
    Skerryvore light 56-19.4N 007-06.8W unreliable and RACON inoperative
    Sea of the Hebrides · Scotland
  40. HYDROLANT 3503/202020-11-11 → 2020-11-12
    Skerryvore light 56-19.4N 007-06.8W unreliable
    Sea of the Hebrides · Scotland
  41. HYDROLANT 3386/202020-11-04 → 2020-11-04
    Rhinns of islay light 55-40-22N 006-30-48W unlit
    North Channel · Sea of the Hebrides · Scotland
  42. HYDROLANT 3125/202020-10-14 → 2020-10-16
    Eilean glas light 57-51.4N 006-38.5W RACON inoperative
    North Minch · Scotland
  43. HYDROLANT 3117/202020-10-13 → 2020-11-04
    Cgoc belfast mf r/t services at tiree 56-30.2N 006-57.9W unreliable
    Sea of the Hebrides · Scotland
  44. HYDROLANT 3094/202020-10-11 → 2020-10-16
    GPS jamming exercises 0800Z to 2000Z daily 12 thru 16 oct in area within 17 miles of 57-28N 005-52W
    North Minch · Scotland
  45. HYDROLANT 3090/202020-10-11 → 2020-10-13
    Cgoc belfast mf dsc and r/t services at tiree 56-30.2N 006-57.9W unreliable
    Sea of the Hebrides · Scotland
  46. HYDROLANT 3034/202020-10-06 → 2020-10-06
    GPS jamming exercises in progress until 10 oct in areas within: 28 miles of 57-52N 005-41W between 285…
    North Minch · Scotland
  47. HYDROLANT 3035/202020-10-06 → 2020-10-10
    GPS jamming exercises 0800Z to 1730Z daily until 10 oct in area within: 28 miles of 57-52N 005-41W between…
    North Minch · Scotland
  48. HYDROLANT 3022/202020-10-05 → 2020-10-11
    Cgoc belfast mf r/t at tiree 56-30.2N 006-57.9W unreliable
    Sea of the Hebrides · Scotland
  49. HYDROLANT 3007/202020-10-03 → 2020-10-06
    GPS jamming exercises 04 thru 15 oct in areas within: 28 miles of 57-52N 005-41W between 285 degrees and 040…
    North Minch · Scotland
  50. HYDROLANT 2597/202020-08-22 → 2020-08-25
    Dgps station at butt of lewis light 58-30-55N 006-15-42W off air 0700Z to 1600Z daily 22 thru 25 aug
    Eastern North Atlantic · 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 3 · seahazards