Despite some other models, WX still maintaining the picture over both weeks of freezing weather restricted to Scandinavia and Russia, bulking up the ultra-cold somewhat, over N Scandinavia week 1 then over Russia week 2. The Scottish Highlands get just a brief freeze in week 1.
GFS Op - some N-lies appearing over Scotland today but the real action starts on Thu when the LP from the SW reaches the W of Ireland 975mb and begins to draw in colder air from the E. This LP stays further S than shown by this model yesterday (rather like yesterday's ECM) developing a trough from the Irish Sea to Biscay by Sun 11th; but that development also brings up air from the S over Europe, meaning that any E-lies for Britain are not that cold. By Wed 14th there is a ridge of HP from Spain to Britain to Norway, becoming a centre 1040mb Baltic Fri 16th, fading and moving NE by Wed 21st allowing LP to reach SW of Ireland 970mb bringing back cold weather from the NW.
ECM - brings in the LP as above but then keeps it as a centre over Britain (975mb Sat 10th) until Tue 13th when it is filling in the N Sea. The ridge of HP does not develop , simply a HP 1040 mb Fri 16th N Norway but with shallow LP over France and a weak E-ly for Britain.
GEFS - Much less agreement between ens members than usual only lasting to Sat 10th; from Wed 7th mild and very wet in the S; cold, then milder in N England, rain and especially snow towards the NE starting a bit later; rather cold in Scotland with snow likely from Fri 9th. A range of cool to very cold options everywhere to Fri 16th, mostly dry; then so much variation as to make generalisation impossible.
Synoptics don't tell you everything, but my guess would be wet snow widely this week, not lying in the south, but enough to be disruptive over hills in the north.
War does not determine who is right, only who is left - Bertrand Russell
Chichester 12m asl