The Lunchtime Telly has now said that there will be rain in Leeds at 4pm, but clearing through fairly quickly, so that west of York is sunny by 6 pm.
In light of that, I think it may be worth a try seeing how things are at Almscliff at 5.45 or so, and take it from there.
Dave I can be at Fox by 4.40 if you want to RV
Andrew