On Saturday, August 16, 2014 10:52:16 AM UTC+1, Graham P Davis wrote:
Boscastle floods were 10 years ago today. Met Office article he

http://www.metoffice.gov.uk/news/in-...tent_Boscastle

Graham P Davis, Bracknell

A rather good detailed account here http://www.metlink.org/wp-content/up...astle_burt.pdf

Stephen also points out how relatively frequent such events are in north Cornwall. Boscastle was flooded to a similar level twice in the 1950s. (I've seen photos which show the water at virtually the same level.) As only one of the 1950's events has a reliable rainfall record, most reports have a habit of combining bits of both events. The excessive damage done in the last flood was largely due to the cars being washed out of the nice new large flat tarmac NT car park (which has been rebuilt).

8th June 1957 200m at Wadebridge.

The St Ives flood of april 2009 dropped approx 190mm (based on radar) http://penzanceweather.atspace.com/StIvesFlood.pdf

Another one http://www.turnstone-cottage.co.uk/SrMerrynStorm.PDF , nearer 100mm - but I saw it develop.

A deep valley on the north Cornwall coast is not a good place to live.

Graham
Penzance