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 264/13 · Nav aids2013-01-29 → 2013-02-04Wales-south Coast
- HYDROLANT 206/13 · Nav aids2013-01-23 → 2013-01-24Swansea Bay
- HYDROLANT 2917/12 · Nav aids2012-12-10 → 2012-12-11Cancel this msg 111800Z dec 12
- HYDROLANT 1156/12 · Nav aids2012-05-30 → 2012-06-01Cancel this msg 011700Z jun
- HYDROLANT 326/12 · Nav aids2012-02-08 → 2013-03-02England-southwest Coast
- HYDROLANT 323/12 · Nav aids2012-02-08 → 2012-02-10Bristol Channel
- HYDROLANT 1453/11 · Nav aids2011-09-11 → 2011-09-13Dsc station gower 51-34N 004-17W off air
- HYDROLANT 1054/11 · Nav aids2011-06-26 → 2011-06-27Mrcc hartland point 51-01N 004-31W rt dsc off air
- HYDROLANT 866/11 · Nav aids2011-05-23 → 2011-05-26Nga chart 36044 (1ST ed)
- HYDROLANT 39/11 · Nav aids2011-01-07 → 2011-01-09Nga chart 36044 (1ST ed)
- HYDROLANT 1842/10 · Nav aids2010-09-29 → 2010-11-27Nga chart 36045 (2ND ed)
- HYDROLANT 1132/10 · Wrecks2010-06-17 → 2010-06-19Nga chart 36044 (1ST ed)
- HYDROLANT 947/10 · Nav aids2010-05-25 → 2010-05-27Nga chart 36044 (1ST ed)
- HYDROLANT 2220/09 · Nav aids2009-11-16 → 2009-11-17Nga chart 36039 (3RD ed)
- HYDROLANT 1953/09 · Nav aids2009-10-08 → 2009-10-10Nga chart 36037 (0 ed)
- HYDROLANT 1460/09 · Nav aids2009-08-03 → 2009-08-04Nga chart 36041 (0 ed)
- HYDROLANT 1386/09 · Nav aids2009-07-26 → 2009-07-27Nga chart 36044 (1ST ed)
- HYDROLANT 1306/09 · Nav aids2009-07-13 → 2009-07-14Nga chart 36044 (1ST ed)
- HYDROLANT 1000/09 · Nav aids2009-06-01 → 2009-06-02Nga chart 36041 (0 ed)
- HYDROLANT 916/09 · Nav aids2009-05-19 → 2009-05-21Nga chart 36044 (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.