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
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05
06
07
08
09
10
11
12
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14
15
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18
19
20
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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 791/01 · Surveys2001-03-09 → 2001-03-12Underwater operations in progress until further notice by M/V havila reel with submersible vicinity of…
- HYDROLANT 778/01 · Surveys2001-03-07 → 2001-03-09Underwater operations in progress until further notice by M/V havila reel vicinity 53-52N 004-06W
- HYDROLANT 765/01 · Nav aids2001-03-07 → 2001-03-14Fog signal at codling lanby 53-03N 005-41W unreliable
- HYDROLANT 749/01 · Nav aids2001-03-05 → 2001-03-07Codling lanby 53-03N 005-41W light and fog signal unreliable
- HYDROLANT 694/01 · Nav aids2001-02-28 → 2001-03-01Baily light 53-21.7N 006-03.1W unreliable
- HYDROLANT 689/01 · Surveys2001-02-28 → 2001-03-09Underwater operations in progress until further notice by M/V shelmalier vicinity of trackline between…
- HYDROLANT 688/01 · Nav aids2001-02-28 → 2001-03-01Dgps station at point lynas 53-25N 003-17W unreliable 281200Z to 281700Z feb and 010900Z to 011200Z mar
- HYDROLANT 615/01 · Surveys2001-02-20 → 2001-02-22Underwater operations in progress until further notice by M/V havila reel vicinity 54-26.0N 004-55.7W
- HYDROLANT 608/01 · Surveys2001-02-19 → 2001-02-20Underwater operations in progress until further notice by M/V havila reel vicinity 53-52N 004-06W
- HYDROLANT 579/01 · Cable ops2001-02-16 → 2001-02-20Underwater operations in progress until further notice by cableship atlantida vicinity of trackline between…
- HYDROLANT 566/01 · Surveys2001-02-15 → 2001-02-18Underwater operations in progress until further notice by M/V havila reel with submersible vicinity 54-15N…
- HYDROLANT 561/01 · Cable ops2001-02-15 → 2001-02-16Underwater operations in progress until further notice by cableship atlantida vicinity of trackline joining…
- HYDROLANT 547/01 · Cable ops2001-02-14 → 2001-02-15Underwater operations in progress until further notice by cableship atlantida vicinity of trackline joining…
- HYDROLANT 522/01 · Surveys2001-02-12 → 2001-02-14Underwater operations in progress until further notice by M/V havila reel vicinity 54-29.5N 004-58.0W
- HYDROLANT 518/01 · Cable ops2001-02-11 → 2001-02-14Underwater operations in progress until further notice by cableship atlantida vicinity 53-56N 004-38W
- HYDROLANT 488/01 · Cable ops2001-02-09 → 2001-02-10Underwater operations in progress until further notice by cableship atlantida vicinity 53-56N 004-38W
- HYDROLANT 484/01 · Surveys2001-02-09 → 2001-02-10Underwater operations in progress until further notice by M/V havila reel vicinity: a. 54-34.8N 005-09.3W,…
- HYDROLANT 482/01 · Surveys2001-02-09 → 2001-02-09Underwater operations in progress until further notice by M/V havila reel vicinity 54-29.3N 004-57.6W
- HYDROLANT 381/01 · Cable ops2001-02-01 → 2001-02-07Underwater operations in progress until further notice by cableship atlantida vicinity of trackline joining…
- HYDROLANT 345/01 · Cable ops2001-01-29 → 2001-01-30Underwater operations in progress until further notice by cableship havila reel vicinity 54-14.5N 004-57.3W
Sea boundaries: Flanders Marine Institute (2018), IHO Sea Areas v3, marineregions.org (CC BY 4.0). Not for navigation — follow official NAVAREA / coastal broadcasts.