Bristol Channel
IHO sea area 20 · -5° to -2° E, 51° to 52° N
- in force
- 0
- last 12 months
- 1
- archive messages
- 265
- categories
- 9
What the archive shows
265 messages are recorded since 1997-07-03 for the Bristol 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 135 of 265 recorded messages (51%), 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 | 135 | 51% |
| Cable ops | 54 | 20% |
| Surveys | 50 | 19% |
| Wrecks | 11 | 4% |
| Ordnance | 6 | 2% |
| Other | 3 | 1% |
| Containers | 3 | 1% |
| Restricted | 2 | 1% |
| Incidents | 1 | 0% |
Archive · 265 cancelled
- HYDROLANT 1770/14 · Nav aids2014-07-22 → 2014-07-23Cancel this msg 231300Z jul 14
- HYDROLANT 1388/14 · Nav aids2014-06-03 → 2014-06-05Cancel this msg 051700Z jun 14
- HYDROLANT 557/14 · Nav aids2014-02-22 → 2014-03-05West hawk buoy 51-31.4N 004-23.6W damaged and RACON inoperative
- HYDROLANT 549/14 · Nav aids2014-02-21 → 2014-02-22West hawk buoy 51-31.4N 004-23.6W damaged, unlit and RACON inoperative
- HYDROLANT 407/14 · Nav aids2014-02-09 → 2014-02-17Cancel HYDROLANT 403/14, aid restored
- HYDROLANT 310/14 · Nav aids2014-02-01 → 2014-02-02Wales-south Coast
- HYDROLANT 173/14 · Cable ops2014-01-17 → 2014-01-19Underwater operations in progress until further notice by cableship raymond croze in area bound by 51-18.8N…
- HYDROLANT 172/14 · Cable ops2014-01-17 → 2014-01-17Underwater operations in progress until further notice by cableship raymond croze in area bound by 51-18.8N…
- HYDROLANT 160/14 · Cable ops2014-01-16 → 2014-01-17Underwater operations in progress until further notice by cableship raymond croze in area bound by 51-21.8N…
- HYDROLANT 127/14 · Cable ops2014-01-13 → 2014-01-16Underwater operations in progress until further notice by cableship raymond croze vicinity 51-21.8N 003-53.2W
- HYDROLANT 2855/13 · Cable ops2013-11-12 → 2013-11-16Underwater operations in progress until further notice by cableship ile de aix vicinity 51-14.8N 003-27.7W
- HYDROLANT 2445/13 · Wrecks2013-10-03 → 2013-11-30Carmarthen Bay
- HYDROLANT 2370/13 · Cable ops2013-09-25 → 2013-09-29Underwater operations in progress until further notice by cableship ile de aix vicinity 51-14.8N 003-27.7W
- HYDROLANT 2293/13 · Nav aids2013-09-17 → 2013-09-17Cancel this msg 171700Z sep 13
- HYDROLANT 1939/13 · Nav aids2013-08-08 → 2013-08-09Mrcc hartland point 51-01N 004-31W dsc off air
- HYDROLANT 1609/13 · Wrecks2013-07-04 → 2013-07-04Bristol Channel
- HYDROLANT 1457/13 · Cable ops2013-06-14 → 2013-06-16Underwater operations in progress until futher notice by cableship ile de aix vicinity 51-14N 003-20W
- HYDROLANT 1439/13 · Nav aids2013-06-12 → 2013-06-12Cancel this msg 121800Z jun 13
- HYDROLANT 433/13 · Nav aids2013-02-16 → 2013-03-09Cancel this msg 09 mar 13
- HYDROLANT 415/13 · Cable ops2013-02-15 → 2013-02-19Underwater operations in progress until further notice by cableship raymond croze along trackline between…
Sea boundaries: Flanders Marine Institute (2018), IHO Sea Areas v3, marineregions.org (CC BY 4.0). Not for navigation — follow official NAVAREA / coastal broadcasts.