Here is the synoptic situation for the GFS 12Z by saturday
Note the black lines are troughs, I haven't added them until now because they are really hard in my opinion. Anyway this is my best estimate of the synoptic situation.
An occluded front lies across the SW through parts of Ireland, it is likely that this will give some rather substantial snow in the later case and possibly the former case though snow in cornwall is so rare that I wouldn't bank on it.
Not much use for the rest of us, the whole thing is just so far west.
Originally Posted by: Quantum