Yeah, that wind up there is no joke. Funny you mention Clingmans Dome, calebh90, because that exact spot taught me the same thing years back. A basic tarp just can't handle those mountain gusts. Had to switch to a heavier, reinforced one for any trip above a certain elevation. The cheap ones turn into confetti real fast.
Is it even a real mountain trip if you don't sacrifice a cheap tarp to the wind gods first, @calebh90? Mine got ripped right off my pack and sailed away like a paper airplane.