1. Zonal and mild (poss cold zonal at first) 50%
2. Cold and blocked very cold easterly 20%
3. Uncertain, possibly no-mans land, neither fully blocked nor fully zonal 30%

Of course non of the above takes into account solar factors :-)

Safest bet would be number 1!

It's been that way for much of the last 10 winters why should this one
be any different?

Still we've already had a few cms of the white stuff so musn't grumble
--
Graham