In reply to Fiskavaig:
I'm sure snow has settled high in Snowdonia but no gully is in going to be in condition after a day or two of snow - plus its around or above freezing now even on the summit of Snowdon. https://www.metoffice.gov.uk/weather/forecast/gcmjghxpx#?date=2019-03-08
The gullies will probably be soft snow over rubble with the added possibility of smacking your axe into, or trampling over, super rare fora.
But one of the rocky ridges will probably be great sport Saturday or Sunday.