Irish Sea and St. George's Channel
IHO sea area 19 · -7° to -3° E, 52° to 55° N
- in force
- 0
- last 12 months
- 2
- archive messages
- 1,132
- categories
- 12
What the archive shows
1,132 messages are recorded since 1999-01-03 for the Irish Sea and St. George's Channel. The selection uses the IHO sea area; a message may describe an exercise, equipment outage or continuing operation as well as a hazard report.
Nav aids accounts for 656 of 1,132 recorded messages (58%), the largest category group in this selection.
The NGA historical archive froze in 2024-05; live collection began 2026-08-17. Counts around that gap are incomplete, and changes in reporting volume do not establish changes in incident frequency.
In force now · 0
Nothing in force in this sea right now.
By year
99
00
01
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03
04
05
06
07
08
09
10
11
12
13
14
15
16
17
18
19
20
21
22
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26
By month (all years)
J
F
M
A
M
J
J
A
S
O
N
D
By category · available archive
| Nav aids | 656 | 58% |
| Cable ops | 184 | 16% |
| Surveys | 162 | 14% |
| Other | 56 | 5% |
| Wrecks | 47 | 4% |
| Containers | 7 | 1% |
| Derelicts | 7 | 1% |
| Debris | 5 | 0% |
| Exercises | 4 | 0% |
| Restricted | 2 | 0% |
| Structures | 1 | 0% |
| Incidents | 1 | 0% |
Archive · 1,132 cancelled
- HYDROLANT 971/21 · Cable ops2021-04-09 → 2021-04-12Cable operations in progress until further notice by cableship ile daix in vicinity 53-50.6N 004-34.8W
- HYDROLANT 936/21 · Cable ops2021-04-06 → 2021-04-06Cable operations in progress until further notice by cableship ile de aix in vicinity 54-02.3N 004-54.5W
- HYDROLANT 934/21 · Cable ops2021-04-05 → 2021-04-06Cable operations in progress until further notice by cableship ile daix in vicinity 53-55.4N 004-34.0W
- HYDROLANT 904/21 · Nav aids2021-04-03 → 2021-04-10Point of ayre light 54-24-57N 004-22-04W unreliable
- HYDROLANT 903/21 · Cable ops2021-04-03 → 2021-04-04Cable operations in progress until further notice by cableship ile daix in vicinity 53-55.4N 004-34.0W
- HYDROLANT 874/21 · Surveys2021-03-30 → 2021-04-03Underwater operations in progress until further notice by c/s ile daix in vicinity of trackline joining…
- HYDROLANT 828/21 · Surveys2021-03-25 → 2021-05-05Survey operations in progress until further notice by M/V fugro mercator, M/V fugro seeker and M/V spectrum…
- HYDROLANT 814/21 · Other2021-03-23 → 2021-03-25Gpa jamming exercises 1400Z to 1600Z daily 23 thru 25 mar in area within 30 miles of 52-08.5N 004-34.3W
- HYDROLANT 812/21 · Other2021-03-23 → 2021-03-23Gpa jamming exercises 1400Z to 1600Z daily 23 and 24 mar in area within 30 miles of 52-08.5N 004-34.3W
- HYDROLANT 596/21 · Nav aids2021-03-01 → 2021-03-05GPS jamming exercises 0800Z to 1600Z daily 01 thru 05 mar in area within 70 miles of 54-50.3N 004-55.8W
- HYDROLANT 418/21 · Surveys2021-02-11 → 2021-03-25Survey operations in progress until further notice by M/V fugro mercator, M/V fastnet pelican and M/V…
- HYDROLANT 411/21 · Surveys2021-02-11 → 2021-02-11Survey operations in progress until further notice by M/V fugro mercator, M/V fastnet pelican and M/V…
- HYDROLANT 396/21 · Nav aids2021-02-09 → 2021-02-10Point of ayre light 54-24.9N 004-22.1W unreliable
- HYDROLANT 76/21 · Cable ops2021-01-09 → 2021-01-13Cable operations in progress until further notice by cableship ile de batz in vicinity of trackline joining…
- HYDROLANT 22/21 · Cable ops2021-01-04 → 2021-01-09Cable operations in progress until further notice by cableship ile de batz in vicinity of trackline joining…
- HYDROLANT 3987/20 · Cable ops2020-12-27 → 2021-01-04Cable operations in progress until further notice by cableship ile de batz in vicinity of trackline joining…
- HYDROLANT 3943/20 · Cable ops2020-12-22 → 2020-12-27Underwater operations in progress until further notice by cableship ile de batz along trackline joining…
- HYDROLANT 3906/20 · Nav aids2020-12-18 → 2020-12-18Strumble head light 52-01-47N 005-04-25W unreliable
- HYDROLANT 3814/20 · Nav aids2020-12-09 → 2020-12-09RACON at west constable buoy 53-23-08N 003-49-14W inoperative
- HYDROLANT 3764/20 · Cable ops2020-12-03 → 2020-12-19Cable operations in progress until further notice by cableship ile de batz in vicinity of trackline joining…
Sea boundaries: Flanders Marine Institute (2018), IHO Sea Areas v3, marineregions.org (CC BY 4.0). Not for navigation — follow official NAVAREA / coastal broadcasts.