"Martin Rowley" wrote in message
...
"Ken Cook" wrote

The 48mm (I think) in 15 minutes at Carlton in Cleveland, North
Yorkshire - Mike Cinderey's site- on August 10th 2003 is not on the
Met O list for some reason. It was verified by the Met O and Stephen
Burt and, I think, Will Hand did some work on it.
I bring it up occasionally just to remind people. One day the Met O
might give it an airing!


... I *think* the 15 min. record is still the 55.9 mm at Bolton on 18th
July, 1964. Anyone confirm? I didn't post that one (or indeed the
Carlton-in-Cleveland figure) as I don't think we are dealing with that
sort of intensity - looking at the radar data on the day, but of course I
could well be proved wrong.

Martin.


Martin, without checking, from memory that is correct. I wrote a paper
published in Meteorological Applications on 20th Century Extreme rainfalls
and that was one of the 50 in that paper. I have Carlton-in-Cleveland down
as a 21st Century extreme event, along with Boscastle (16/8/04),
Carlisle(7/1/05) etc.
The criteria for an extreme event is high, basically it is a rainfall depth
as a function of duration, all explained in the paper.

See http://adsabs.harvard.edu/abs/2004MeApp..11...15H (abstract only)

but for a full report based on the paper see,
http://www.metoffice.gov.uk/research...84/FRTR384.pdf

For a more up to date study including "less extreme" events see my full
paper at
http://www.metoffice.gov.uk/research...76/FRTR476.pdf

Cheers,

Will (Haytor, Devon, 1017 feet asl)
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