I have been in a long discussion with a friend about this ever since we climbed Mont Blanc last July. I have searched far and wide for information on this subject, but have found almost nothing relating specifically to 'can the gravity produced by a large mountain have a significant affect on the weather surrounding it?'. I know the gravitational pull from a large mountain, or mountain range, can be easily measured. But it is my view that such a small pulling force will have no real affect on something as chaotic as the weather (our debate focused on cloud formation).