Big thunderstorm in the High Pennines this evening around Alston

Numerous properties flooded and roads ripped up, sadly there has been
one fatality, elderley gent bailing out water has suffered a suspected
heart attack, rumours that someon else has been struck by lightning
but this cannot be confirmed

Large amounts of water, lots of debris to sort out in the morning.

Paul
Brampton, Cumbria
www.bramptonweather.co.uk

On Thu, 19 Jul 2007 22:48:28 -0000, wrote:

Big thunderstorm in the High Pennines this evening around Alston

Around 2" (50mm) in the hour from 1700 to 1800 and another 1/2" in the few
hours afterwards. I wasn't here to witness it but it does appear to have
been well defined. Coming home around midnight the roads where dry until
Scotch Corner and only normally wet until entering the top of South
Tynedale, where the amount of run off and debris increased very rapidly.
Debris meaning road covered, verge to verge in stones up to 2" across
mixed with gravel, lots of running and standing water and this several
hours after it stopped.

Large amounts of water, lots of debris to sort out in the morning.

The Garrigill Road from the B6277 is closed beyound Thortergill. Water has
got under the 2" thick tarmac surface and lifted chunks of it away at
Garrigill Bridge and buckled an area. This water then flowed along the
road for several hundred yards at least a foot deep before washing out 20
odd foot section of wall to get back into the river.

Pictures of the aftermath will probably appear on my web site later
tonight.

--
Cheers
Dave. pam is missing e-mail

Dave

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

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

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

Paul
www.bramptonweather.co.uk



On Jul 20, 7:03 pm, "Dave Liquorice" wrote:
On Thu, 19 Jul 2007 22:48:28 -0000, wrote:
Big thunderstorm in the High Pennines this evening around Alston

Around 2" (50mm) in the hour from 1700 to 1800 and another 1/2" in the few
hours afterwards. I wasn't here to witness it but it does appear to have
been well defined. Coming home around midnight the roads where dry until
Scotch Corner and only normally wet until entering the top of South
Tynedale, where the amount of run off and debris increased very rapidly.
Debris meaning road covered, verge to verge in stones up to 2" across
mixed with gravel, lots of running and standing water and this several
hours after it stopped.

Large amounts of water, lots of debris to sort out in the morning.

The Garrigill Road from the B6277 is closed beyound Thortergill. Water has
got under the 2" thick tarmac surface and lifted chunks of it away at
Garrigill Bridge and buckled an area. This water then flowed along the
road for several hundred yards at least a foot deep before washing out 20
odd foot section of wall to get back into the river.

Pictures of the aftermath will probably appear on my web site later
tonight.

--
Cheers
Dave. pam is missing e-mail

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

On Sat, 21 Jul 2007 00:12:42 +0100 (BST), Dave Liquorice 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.

Hum, maybe I'm glad I wasn't he

http://news.bbc.co.uk/1/hi/england/cumbria/6908913.stm

Note to everyone this happened on Thursday 19th early evening not during
the day on Friday 20th.

--
Cheers
Dave. pam is missing e-mail