Hard route in cold weather. 40kph winds over Cnicht. Climb over Moelwyn Mawr North Ridge had a serious side wind from the west causing unstable walking. Must have been 50kph+ gusts at times. Brilliant technical route along Craigysgafn and a a lovely steep scramble down the other side. Shame there wasn't enough time or energy to tick off Moelwyn Bach. Finished just before dark.