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
By month (all years)
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 1338/15 · Nav aids2015-06-02 → 2015-06-04Loran-c station anthorn (54-54N 003-16W), rate 6731-Y, off air 040900Z to 041600Z jun
- HYDROLANT 1334/15 · Nav aids2015-06-01 → 2015-07-13All navigational aids at wind turbine G1, 54-45.3N 003-44.6W inoperative
- HYDROLANT 1138/15 · Nav aids2015-05-10 → 2015-05-22GPS jamming exercises 0700Z to 1700Z daily 13 thru 22 may within ten miles of 54-48.7N 004-57.4W
- HYDROLANT 1091/15 · Nav aids2015-05-05 → 2015-05-07Loran-c station anthorn (54-54N 003-17W), rate 6731-Y, off air 070900Z to 071600Z may
- HYDROLANT 959/15 · Other2015-04-21 → 2015-06-01All navigational aids at wind turbines inoperative: a. G1, 54-45.3N 003-44.6W
- HYDROLANT 924/15 · Cable ops2015-04-17 → 2015-05-02Underwater operations in progress until further notice by cableship wave sentinel vicinity 53-48.3N 004-29.7W
- HYDROLANT 845/15 · Cable ops2015-04-10 → 2015-04-13Underwater operations in progress until further notice by cableship wave sentinel vicinity 53-48.3N 004-29.7W
- HYDROLANT 627/15 · Nav aids2015-03-15 → 2015-03-17RACON at skerries light 53-25.3N 004-36.4W inoperative
- HYDROLANT 603/15 · Nav aids2015-03-13 → 2015-03-18Loran-c station anthorn (54-54N 003-17W), rate 6731-Y, off air 180800Z to 181800Z mar
- HYDROLANT 585/15 · Nav aids2015-03-10 → 2015-03-13Loran-c station anthorn (54-54N 003-17W), rate 6731-Y, off air 0800Z to 1800Z daily until 15 mar
- HYDROLANT 572/15 · Other2015-03-09 → 2015-04-21All navigational aids at wind turbines inoperative: a. G1, 54-45.3N 003-44.6W
- HYDROLANT 535/15 · Nav aids2015-03-06 → 2015-03-10Loran-c station anthorn (54-54N 003-17W), rate 6731-Y, off air 0800Z to 1800Z daily until 12 mar
- HYDROLANT 523/15 · Nav aids2015-03-03 → 2015-03-06Loran-c station anthorn (54-54N 003-17W), rate 6731-Y, off air 0800Z to 1800Z daily until 08 mar
- HYDROLANT 407/15 · Nav aids2015-02-16 → 2015-02-18RACON at point of ayre light 54-24.9N 004-22.1W unreliable
- HYDROLANT 400/15 · Nav aids2015-02-16 → 2015-02-17Dpgs station at point lynas light 53-25.0N 004-17.3W off air 161200Z to 161600Z and 170900Z to 171600Z feb
- HYDROLANT 320/15 · Cable ops2015-02-07 → 2015-02-13Underwater operations in progress until further notice by cableship pierre de fermat with submersible…
- HYDROLANT 278/15 · Cable ops2015-02-01 → 2015-02-07Underwater operations in progress until further notice by cableship pierre de fermat with submersible…
- HYDROLANT 98/15 · Other2015-01-12 → 2015-02-12Mrcc liverpool 53-30.0N 003-03.0W will close at 161600Z jan
- HYDROLANT 40/15 · Nav aids2015-01-05 → 2015-01-20Lightning knoll buoy 53-59.8N 003-14.3W off station
- HYDROLANT 3142/14 · Nav aids2014-12-26 → 2014-12-27Fog signal at calder platform 110/7A, 53-48.4N 003-39.8W inoperative
Sea boundaries: Flanders Marine Institute (2018), IHO Sea Areas v3, marineregions.org (CC BY 4.0). Not for navigation — follow official NAVAREA / coastal broadcasts.