In uk.sci.weather on Sun, 24 Oct 2004 at 17:44:27, Norman Lynagh wrote :
I've just experienced some of the heaviest rain I have ever seen in this
country. According to the Davis VP 9.6 mm fell in just over 4 minutes
from 1830 BST, with a maximum rate of 236 mm/hour. The rain was
accompanied by one loud clap of thunder.

Had a pretty beefy shower come through here at around 4.30pm yesterday,
about 7mm in 10 mins.
--
Paul Hyett, Cheltenham