Trying to move fast, James was linking p. 10 and 11, backcleaning all pieces when a cam that he was yarding on blew, sending him for a good ride, maybe 40+ ft. He ended up missing me at the belay by a few feet. Air Time! At that point, I took the lead up to big sandy, just in time for the Darkness to surround us. The happy little clouds had started to turn angry, and this is where we felt the first snowflakes. Time to climb faster, we thought. Having shaken off his fall, James lead the Zig Zags, and by the time I got to the belay @ pitch 20, the storm was really starting to show it's teeth.