"Ron Button" wrote in message
...
I am somewhat surprised by Andrew Bonds rainfall total for Thursday
evening
of 32mm ,should that not be 3.2mm ?

Hi Ron,

32mm or an inch and half in old money, was certainly the heaviest most
sustained rainfall I've experienced. Had it continued for a further 5 or 10
minutes then I daresay I'd still be clearing up.. quite a night! East Ewell
is a fair way south from Thames Ditton when you consider this was a
convective cell as opposed more widespread rainfall.

Cheers,

Andrew

I am somewhat surprised by Andrew Bonds rainfall total for Thursday
evening
of 32mm ,should that not be 3.2mm ?


So was I. Here, just two to three miles WNW of Thames Ditton I recorded 4.7mm
09-09 ending Friday morning, of this around 3.5mm.to 4.0 probably fell in the
heavy evening shower, very similar to Martin's figures for far-off Bracknell.
However, if Peter Clark had 16 in East Ewell, then there certainly was some
abrupt intensification. I would certainly not rule it out judging by the
darkness of the cloud then.

I would be interested to know of Andrew's rainfall total last month, as a cross
check. I had 67mm.

Julian Mayes, West Molesey, Surrey.

"JJCMayes1" wrote in message
...

I would be interested to know of Andrew's rainfall total last month, as a
cross
check. I had 67mm.

Hi guys,

Sorry if I mislead, I don't keep records sadly, although I'm going to buy a
Oregon full kit in the next couple of weeks. My measurement was very
Heath-Robinson like, I had forecast to clients and put on the site that the
front could intensify in the London area and watched one cell make it's way
up the M4, I then dashed out and placed a small plastic rain guage on top of
a post in the garden and waited for the rain. A few drips then all of a
sudden the heavens just opened and it rained solidly for around 15 mins,
even some plants in the garden had their leaves taken off and stalks snapped
due to the ferocity, in all honesty I was surprised that the radar showed
this as yellow/red over me, Lord knows what white must be like!

I didn't measure it until the rain stopped around 8.30pm and it said 32mm
but of course this could have included splash water etc from the fence,
post, nearby trees, plants etc , it was really only put there to measure how
intense it was and the value didn't surprise me. Perhaps others in nearby
Surbiton or Kingston have recordings measured in a more "professional" way
;-)

Cheers,

Andrew