We were there that day, coming up from WP beginning at at 11 or so to do a one-nighter at TrailCamp, then planned to summit next day (we did). Because of the same storm mentioned here that was going on much higher than us, we hung around Outpost Camp for about 1.5-2 hrs until things improved, and then went on up to TrailCamp. There were a lot of cold, scared people coming down, many who were on the summit ridge and turned around. Mother Nature wins another round.
