In reply to mike lawrence?:
Ogwen was dry last weekend for this sort of thing -
Amphitheatre Buttress (VD) was dry and solo-able, and the wall with
Mur y Niwl (VS 4c) looked dry from where I was. Tryfan also dry on the usual route and the east face looked similar. No idea on Lliwedd I'm afraid. Hasn't rained much/at all since.