"Eric Ingham" wrote in message
...
In some parts of the UK would it not be right to associate low
temperatures
with lack of cloud cover - no clouds, no snow? Or is this too simplistic?

Not at all. That was precisely what I was saying. Temperatures too low to
trigger convection.

Martin. (I think it was you who started this theme). When you meet those
old ladies in the Post Office queue again, ask them if they were referring
to "conditional instability". I'm sure that's what they had in the back of
their minds.

Jack