On 29/06/2012 08:57, Pete B wrote:

Bit further to the SW of Herefordshire then - already expanding by the
time they'd moved into this area.


One JMason's post to the Guardian at 10.09 in the comments on this
article (wish I could link to the comment) blames ingredients and then
the Brecon Beacons as being the catalyst:

http://www.guardian.co.uk/uk/2012/ju...rt-power-homes

It concludes

"It's like an obscure recipe: you need all the ingredients although some
are hard to get hold of. Yesterday, all the ingredients were to hand:
stacks of moisture (hence the flooding incidents), a warm profile, cold
air aloft, low-level directional and mid to high-level speed-shear. It
is unusual to get the whole lot together in the UK, but it can happen,
as yesterday demonstrated."