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Old July 21st 07, 12:12 AM posted to uk.sci.weather
Dave Liquorice Dave Liquorice is offline
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First recorded activity by Weather-Banter: Oct 2004
Posts: 1,163
Default Alston Storm - Cumbria

On Fri, 20 Jul 2007 20:45:21 -0000, wrote:

A horrendous evening !! - something I will remember for a long while.
To busy to take my own photos this time around !!


I can imagine, I wish I'd been up here to witness it and possibly get a
few photos, though it all just whooshes past us.

The Alston Rrain gauge measured 33.6mm, with 28mm in the same time
period as yourself !!

Just shows that even a couple of miles away there can be fast
differences in rainfall totals


Well you know I never really trust my gauge but it wasn't windy which is
what really upsets it, just steady very heavy straight down rain rather
than the horizontal stuff which is more the norm. The totals plot is
pretty consistent and the rate not too wild so I'm inclined to believe
it's reasonably accurate.

How does this compare with that t-storm of 2004 ?


2004?

I've found 30th Jul 2002 in my Photos section,. Wanders off to 2004 Events
ahhh, 10th Aug 2004, 35mm for the entire day, the thunderstorm dropped
about 30mm in around 45 mins. 30th July 2002 the guage was not working I
guesstimated 60mm from all three thunderstorms over about 5 hours.

19th July 2007 dropped 50mm in an hour and 70mm in 6hrs. A much bigger
event as far as quantity of rain in period of time.

Photos at:

http://www.howhill.com/weather/view....2007&m=07&d=19

Do the comparison of the water fall at Thortergill, between the 30/7/02
and 19/7/07. That is good 6 to 12" higher level for the 19th. Considering
the general fall on the gill at that point that is a very significant
amount of water. It would have been seriously shifting...

--
Cheers
Dave. pam is missing e-mail