Paul Hyett wrote:
In uk.sci.weather on Wed, 27 Sep 2006, Chris Curtis
wrote :

I was underneath the 17mm - which all fell within 15 minutes,
accompanied by almost continuous lightning and thunder. The drains
could not cope and there were 25cm deep puddles

I'd call something 10" deep, slightly more than a 'puddle'!

in places with flooding into buildings where it simply came under the
doors. Once the rain diminished the waters receded quickly with
whirlpools showing where the drains were.

Any photos?

Sorry - I was too busy stopping the water ruining things!