Inner Seas off the West Coast of Scotland

IHO sea area 18 · -8° to -4° E, 54° to 59° N

in force
2
last 12 months
2
since 1998
1,216
categories
10

In force now · 2

  1. HYDROLANT 1552/26 · Nav aids2026-08-11
    Mew Island Light at 54-41.90N 005-30.80W in North Channel, Ireland, is unreliable.
  2. HYDROLANT 1532/26 · Nav aids2026-08-08
    MF DSC service is off air at Tiree in the Sea of the Hebrides, Scotland, at 56-30.20N 006-57.80W.

Longest in force

  1. HYDROLANT 1532/26 · Nav aids2026-08-08
    MF DSC service is off air at Tiree in the Sea of the Hebrides, Scotland, at 56-30.20N 006-57.80W.
  2. HYDROLANT 1552/26 · Nav aids2026-08-11
    Mew Island Light at 54-41.90N 005-30.80W in North Channel, Ireland, is unreliable.

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

By category · since 1997

Nav aids95078%
Other968%
Surveys746%
Cable ops544%
Wrecks323%
Mines30%
Derelicts30%
Debris20%
Containers10%
Exercises10%

Archive · 1,214 cancelled

  1. HYDROLANT 1403/19 · Nav aids2019-05-07 → 2019-06-18
    Cgoc stornoway mf dsc and r/t services at butt of lewis 58-30N 006-16W unreliable
  2. HYDROLANT 1108/19 · Nav aids2019-04-08 → 2019-04-11
    AIS at mew island light 54-41.9N 005-30.8W unreliable
  3. HYDROLANT 1101/19 · Nav aids2019-04-08 → 2019-04-10
    RACON at eilean glas light 57-51.4N 006-38.5W unreliable 0800Z to 1700Z daily 08 and 09 apr
  4. HYDROLANT 1035/19 · Nav aids2019-04-02 → 2019-04-09
    Cgoc stornoway mf dsc and r/t services at butt of lewis 58-30N 006-16W unreliable
  5. HYDROLANT 1017/19 · Nav aids2019-03-30 → 2019-04-12
    GPS jamming exercises 31 mar thru 11 apr during daylight hours in areas within: a. 36 miles of 58-36.2N…
  6. HYDROLANT 933/19 · Nav aids2019-03-24 → 2019-03-29
    Cgoc belfast mf r/t and dsc services at tiree site 56-30.2N 006-57.9W off air
  7. HYDROLANT 840/19 · Nav aids2019-03-16 → 2019-03-16
    Rona light 57-34.7N 005-57.5W unreliable
  8. HYDROLANT 628/19 · Nav aids2019-02-26 → 2019-02-27
    Cgoc stornoway dsc and r/t services at torosay site 56-27.5N 005-43.8W unreliable
  9. HYDROLANT 563/19 · Wrecks2019-02-20 → 2019-03-04
    Obstruction reported in 56-15.82N 005-36.36W
  10. HYDROLANT 554/19 · Nav aids2019-02-20 → 2019-02-21
    Dubh artach light 56-08.0N 006-38.1W unreliable
  11. HYDROLANT 551/19 · Nav aids2019-02-20 → 2019-02-20
    Dubh artach light 56-08.0N 006-38.1W unlit
  12. HYDROLANT 448/19 · Nav aids2019-02-10 → 2019-03-24
    Cgoc belfast mf r/t and dsc services at tiree site 56-30.2N 006-57.9W off air
  13. HYDROLANT 335/19 · Nav aids2019-02-01 → 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
  14. HYDROLANT 300/19 · Nav aids2019-01-30 → 2019-01-30
    Oigh sgeir light 56-58.1N 006-40.8W unreliable
  15. HYDROLANT 4072/18 · Nav aids2018-12-30 → 2019-02-10
    Mf r/t and dsc services at tiree site 56-30.2N 006-57.9W off air
  16. HYDROLANT 3955/18 · Nav aids2018-12-19 → 2019-03-15
    Rubha reidh light 57-51.5N 005-48.7W range permanently changed to 18 miles
  17. HYDROLANT 3875/18 · Nav aids2018-12-12 → 2018-12-19
    Rubha reidh light 57-51.5N 005-48.7W range permanently changed to 18 miles
  18. HYDROLANT 3694/18 · Nav aids2018-11-28 → 2018-11-28
    Dgps station at butt of lewis light 58-30.9N 006-15.7W off air 281000Z to 281500Z nov
  19. HYDROLANT 3651/18 · Nav aids2018-11-23 → 2018-11-24
    East maiden light 54-55.7N 005-43.7W unreliable
  20. HYDROLANT 3580/18 · Nav aids2018-11-18 → 2018-12-30
    Mf r/t and dsc services at tiree site 56-30.2N 006-57.9W off air

Sea boundaries: Flanders Marine Institute (2018), IHO Sea Areas v3, marineregions.org (CC BY 4.0). Not for navigation — follow official NAVAREA / coastal broadcasts.