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 2747/16 · Nav aids2016-10-19 → 2016-10-20
    Donaghadee harbor light 54-38.7N 005-31.9W unreliable until 200900Z oct
  2. HYDROLANT 2726/16 · Nav aids2016-10-17 → 2016-10-20
    GPS jamming exercises 0700Z to 0800Z and 1600Z to 1700Z daily 18 and 19 oct and 200700Z to 200800Z oct…
  3. HYDROLANT 2707/16 · Nav aids2016-10-15 → 2016-10-16
    Gahmna gigha light 55-43.8N 005-41.1W unlit
  4. HYDROLANT 2664/16 · Nav aids2016-10-12 → 2016-10-14
    GPS jamming exercises 0700Z to 0800Z and 1615Z to 1715Z daily 12 thru 14 oct within 25 miles of 57-51.9N…
  5. HYDROLANT 2663/16 · Nav aids2016-10-12 → 2016-11-22
    Cgoc stornoway mf dsc and r/t services at butt of lewis 58-27.9N 006-14.1W off air
  6. HYDROLANT 2642/16 · Nav aids2016-10-10 → 2016-10-12
    GPS jamming exercises 110800Z to 110900Z, 111200Z to 111300Z oct, 0700Z to 0800Z daily 12 thru 14, 18 and 19…
  7. HYDROLANT 2634/16 · Nav aids2016-10-08 → 2016-10-12
    Cgoc stornoway mf dsc and r/t services at butt of lewis 58-27.9N 006-14.1W off air
  8. HYDROLANT 2612/16 · Nav aids2016-10-06 → 2016-10-07
    Cgoc stornoway mf dsc and r/t services at butt of lewis 58-27.9N 006-14.1W off air
  9. HYDROLANT 2604/16 · Nav aids2016-10-06 → 2016-10-10
    Cgoc belfast mf dsc at tiree 56-30N 006-58W off air
  10. HYDROLANT 2558/16 · Surveys2016-10-01 → 2016-10-21
    Survey operations in progress until 202359Z oct by eight remote controlled vesels within 15 miles of 58-12N…
  11. HYDROLANT 2534/16 · Other2016-09-29 → 2016-10-26
    Navigation prohibited until further notice within 1000 meters of 58-16.6N 006-11.6W
  12. HYDROLANT 2442/16 · Surveys2016-09-19 → 2016-09-23
    Underwater operations in progress until 231700Z sep by tug sd raasay with submersible in area bound by…
  13. HYDROLANT 2360/16 · Nav aids2016-09-11 → 2016-09-11
    Oigh sgeir light 56-58.1N 006-40.8W unlit
  14. HYDROLANT 2349/16 · Surveys2016-09-09 → 2016-10-22
    Scientific moorings established in: a. 56-41.08N 006-07.61W
  15. HYDROLANT 2307/16 · Surveys2016-09-06 → 2016-09-09
    Scientific moorings established in area bound by 56-39.4N 006-07.7W, 56-41.0N 006-08.5W, 56-40.8N 006-01.8W,…
  16. HYDROLANT 2293/16 · Surveys2016-09-05 → 2016-09-09
    Underwater operations in progress until 091800Z sep by M/V sd warden in area bound by 57-38N 006-12W, 57-38N…
  17. HYDROLANT 2184/16 · Nav aids2016-08-25 → 2016-08-26
    Dgps station at butt of lewis light 58-30.9N 006-15.7W off air
  18. HYDROLANT 2148/16 · Nav aids2016-08-22 → 2016-08-25
    NAVTEX station portpatrick 54-50.6N 005-07.5W off air 0830Z to 1430Z daily 23 thru 25 aug
  19. HYDROLANT 1977/16 · Nav aids2016-08-04 → 2016-08-05
    Ness point light 57-25.4N 006-47.3W unlit
  20. HYDROLANT 1911/16 · Nav aids2016-07-28 → 2016-08-02
    Cgoc beflast mf dsc and r/t services at rhu stafnish 55-22N 005-32W 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.