In article ,
Dave Cornwell writes:
Well after three weeks of twoing and froing it looks as if the cold will
return in a few days time. Will said - "Note that 850hPa temps. will not be
a useful guide as cold air will be below this to start with. " So I imagine
some of the -15C 850 hPa's being modelled for London in some peturbations
would bring quite chilly conditions ;-)
Dave





Both the 18Z and 00Z GFS operational runs went for very cold NEerlies by
the middle of next week, and so far the 06Z seems to be evolving very
similarly. With such cold air aloft and quite a long sea track over the
North Sea, I imagine that eastern regions could see quite a bit of snow.
But the air would have been warmed in its lowest layer by that longish
sea track, so for places within a mile or two of the coast there might
be a risk of it falling as rain or sleet.
--
John Hall
"Acting is merely the art of keeping a large group of people
from coughing."
Sir Ralph Richardson (1902-83)