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 963/10 · Nav aids2010-05-27 → 2010-07-17Nga chart 36002 (0 ed)
- HYDROLANT 924/10 · Nav aids2010-05-22 → 2010-05-23Nga chart 36007 (1ST ed)
- HYDROLANT 910/10 · Nav aids2010-05-20 → 2010-05-22Nga chart 36002 (0 ed)
- HYDROLANT 659/10 · Nav aids2010-04-16 → 2010-04-17Nga chart 36007 (1ST ed)
- HYDROLANT 652/10 · Other2010-04-15 → 2010-06-12Nga chart 36025 (1ST ed)
- HYDROLANT 648/10 · Nav aids2010-04-15 → 2010-04-15Nga chart 36025 (1ST ed)
- HYDROLANT 555/10 · Nav aids2010-03-31 → 2010-03-31Nga chart 36006 (1ST ed)
- HYDROLANT 514/10 · Nav aids2010-03-24 → 2010-03-25Nga chart 36007 (1ST ed)
- HYDROLANT 458/10 · Nav aids2010-03-17 → 2010-03-21Nga chart 36007 (1ST ed)
- HYDROLANT 384/10 · Surveys2010-03-03 → 2010-04-14Underwater operations in progress until further notice by M/V fugro synergy vicinity 53-12.7N 005-40.4W
- HYDROLANT 273/10 · Nav aids2010-02-12 → 2010-04-03Nga chart 36025 (1ST ed)
- HYDROLANT 257/10 · Nav aids2010-02-10 → 2010-02-12Nga chart 36025 (1ST ed)
- HYDROLANT 230/10 · Surveys2010-02-05 → 2010-03-03Underwater operations in progress until further notice by M/V fugro synergy vicinity 53-12.9N 005-39.0W
- HYDROLANT 197/10 · Nav aids2010-01-31 → 2010-05-01Nga chart 36025 (1ST ed)
- HYDROLANT 189/10 · Nav aids2010-01-30 → 2010-04-14Nga chart 36025 (1ST ed)
- HYDROLANT 44/10 · Nav aids2010-01-09 → 2010-02-08Nga chart 36007 (1ST ed)
- HYDROLANT 2507/09 · Nav aids2009-12-25 → 2009-12-30Nga chart 36025 (1ST ed)
- HYDROLANT 2505/09 · Surveys2009-12-25 → 2010-02-05Underwater operations in progress until further notice by M/V fugro synergy vicinity 53-12.9N 005-39.0W
- HYDROLANT 2294/09 · Nav aids2009-11-25 → 2009-11-28Nga chart 36006 (1ST ed)
- HYDROLANT 2238/09 · Nav aids2009-11-18 → 2009-11-19Nga chart 36007 (1ST ed)
Sea boundaries: Flanders Marine Institute (2018), IHO Sea Areas v3, marineregions.org (CC BY 4.0). Not for navigation — follow official NAVAREA / coastal broadcasts.