Looking at the latest rainfall radar, heavy precipitation seems to be merging around the Nevis / Glencoe area. In addition to the strong NW'ly wind as Firefly mentions above, I think there's a fair chance lasting snow for the winter has arrived here meaning Ob Gully, Point 5, Beag and probably Coasters Cave are home and dry...
Here is summit of Meall a' Bhuiridh 3600' (1st image) which is right in the middle of the firing zone http://www.glencoemo...uk/webcams.html