"Will Hand" wrote in message
...
Well according to UKMO outputs. On the face of it we have the continuation
of
high pressure, but .... if you calculate the thickness from the 500 mb
height
field you will see a 528 DAM cold pool migrating NW'wards on Tuesday
across SW
England and Wales. Cold pools can give an hour or two of continuous snow
especially if it is deep and extends to 300 hPa level (which I cannot
see), but
certainly something to watch out for despite the high pressure. Sea temps.
could
enhance the snow too maybe giving substantial falls over high ground SW
England
and Wales given the cold surface feed off the continent.

Will.

Will, don't want to get you too excited but the 12Z EC operational run has
quite a bit of precipitation over the SW on Tuesday and Wednesday; seemingly
tied to a disturbance moving north from Biscay. The 12Z GM has the cold pool
of sorts again moving NW across southern parts but little precipitation this
time and hence didn't look as threatening. I'm putting the sledge purchase
on hold for now but something to keep an eye on !

Jon.