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 3039/17 · Ordnance2017-09-26 → 2017-09-28Unexploded ordnance in 51-13.44N 003-09.23W
- HYDROLANT 2805/17 · Nav aids2017-09-11 → 2017-09-12Lynmouth foreland light 51-14.7N 003-47.2W unreliable
- HYDROLANT 2770/17 · Wrecks2017-09-08 → 2018-09-07Dangerous wreck, least depth 18 meters, in 51-27.3N 003-53.4W
- HYDROLANT 2674/17 · Ordnance2017-09-01 → 2017-09-04Unexploded ordnance in vicinity 51-13.44N 003-09.23W
- HYDROLANT 2642/17 · Ordnance2017-08-30 → 2017-08-30Unexploded ordnance in vicinity 51-13.43N 003-09.23W
- HYDROLANT 2503/17 · Ordnance2017-08-15 → 2017-08-16Unexploded ordnance in vicinity 51-13.43N 003-09.22W
- HYDROLANT 2489/17 · Nav aids2017-08-14 → 2017-09-12Lynmouth foreland light 51-14.7N 003-47.2W unreliable until 11 sep
- HYDROLANT 2444/17 · Ordnance2017-08-08 → 2017-08-08Unexploded ordnance in vicinity 51-14.2N 003-10.3W
- HYDROLANT 2440/17 · Ordnance2017-08-07 → 2017-08-08Unexploded ordnance in vicinity 51-14.2N 003-10.3W
- HYDROLANT 2331/17 · Wrecks2017-07-28 → 2017-09-08Dangerous wreck, least depth 18 meters, in 51-27.3N 003-53.4W
- HYDROLANT 1896/17 · Nav aids2017-06-19 → 2017-06-19Dgps station at nash point light 51-24.0N 003-33.1W off air 190900Z to 191600Z jun
- HYDROLANT 1569/17 · Nav aids2017-05-18 → 2018-02-06Fog signal at mumbles light 51-34.0N 003-58.3W inoperative
- HYDROLANT 1534/17 · Nav aids2017-05-15 → 2017-05-18Dgps station at nash point light 51-24.1N 003-33.1W off air 0800Z to 1600Z daily 16 thru 18 may
- HYDROLANT 1156/17 · Nav aids2017-04-10 → 2017-04-13Dgps station at nash point light 51-24.1N 003-33.1W off air 0800Z to 1600Z daily 11 thru 13 apr
- HYDROLANT 1101/16 · Nav aids2016-05-09 → 2016-05-13Dgps station at nash point light 51-24.1N 003-33.1W off air 091100Z to 131600Z may
- HYDROLANT 560/16 · Nav aids2016-03-08 → 2016-03-10Dgps station at nash point light 51-24.0N 003-33.1W off air
- HYDROLANT 523/16 · Nav aids2016-03-02 → 2016-03-02Dgps station at nash point light 51-24.0N 003-33.1W off air
- HYDROLANT 448/16 · Nav aids2016-02-22 → 2016-02-22Monkstone rock light 51-24.9N 003-06.0W unlit
- HYDROLANT 44/16 · Cable ops2016-01-04 → 2016-01-06Underwater operations in progress until further notice by cableship ile d'aix vicinity 51-18.0N 003-54.2W
- HYDROLANT 3173/15 · Cable ops2015-12-24 → 2015-12-26Underwater operations in progress until further notice by cableship ile d'aix vicinity 51-18.0N 003-54.2W
Sea boundaries: Flanders Marine Institute (2018), IHO Sea Areas v3, marineregions.org (CC BY 4.0). Not for navigation — follow official NAVAREA / coastal broadcasts.