Something happened to me a couple days ago I'd read about, but never before personally experienced.** There was about 6" of seemingly dry powder at Heavenly - couldn't make a snowball with a fist full - and it was colder than usual for this time of year. I came to discover just walking a few feet from the paved surface to where I clicked in snow had caked up solidly on my boot soles!
Before clicking in I always religiously whack my boots several times with a ski pole, and also scrape back and forth on the top of the binding to clear snow off, but when I got off the lift and started skiing something was way wrong - my skis were high up on their edges and aggressively wanting to cross. I stopped and clicked out, and there was a 1/4" or more of very solid, hard snow on my boot soles. I had to use the pole tip to aggressively scrape and clear the entire sole surface - it was like it was glued on! Ended up sitting on a bench and sliding my skis under it so I could step/click in without first getting on the snow again - it was that sticky! Just a couple steps in the snow and the whole thing repeated! Guess it was just the right combination of temp and moisture in the snow.
Real eye opener - gotta watch that!