On Feb 9, 8:18*pm, "Will Hand" wrote:
Becoming increasingly confident now that after Monday the snowiest spell of
the winter is about to hit the UK with widespread lowland snow.

The benign cold spell will start to withdraw on Sunday as the high
retrogresses allowing a much colder airmass originating from sub 492 DAM air
near the pole to flood south with sub 522DAM thickness and falling pressure.
Three things will aid snow development:
1. South moving air increasing absolute vorticity forcing ascent and falling
pressure.
2. Decreasing stability forcing convection
3. Northerly jet streak propagating south from Iceland forcing mass ascent
of air on its cold side (over UK).

I have kept quiet till now wanting to see how this was likely to pan out but
now it is becoming clearer when the serious snow will arrive - from Monday
onwards for about a week. Get those snow shovels ready, nobody will be
immune, even lowland coastal SW areas.

Ciao, :-)

Will
--

I do like a nice arctic maritime air mass
It will be great fun seeing those little polar lows spinning down from
the north on the western flank of their big daddy, or should I say
mummy?
A good time to study the sat pics and see the signatures.

Lowland coastal SW areas? Are you referring to my patch Will? :-)
Might have to get rid of Dartmoor for that to happen.

Len Wood
Wembury, SW Devon