SNIP
On Tuesday, July 18, 2017 at 7:11:57 PM UTC+1, Graham Easterling wrote:
Around 200mm (thanks Bernard) rain fell near Coverack in this afternoons major thunderstorm. Almost all the rain fell prior to this morning Weather Warning start, which was 17:00, by which time the sun was back out in Coverack. The most severe period was 14:00-16:00,
Graham
Penzance
The official figure for the Coverack storm, seems to be just over 100mm, but I've now seen 2 separate reports indicating 160mm & 170mm. A small patch of torrential rain & large hail barely moved for some time.
The 170mm is essentially based on a bucket - but in the absence of anything else.
https://www.coverack.org.uk/pages/news.html
Culdrose received 1mm during the period.
Graham
Penzance