The Cairngorms will get very little snow from an unstable WNW'ly as they are too far from the coast and also lie in the precipitation shadow of the NW Highlands. An unstable E or NE'ly is much better, if less common, but the main source of snow will be from frontal situations. Interestingly, both these latter two weather types are on offer over the next few days so I wouldn't be surprised to see sufficient skiable snow by the weekend.

Dick Lovett