The first (and only) full day of a quick weekend back in SLC started with a morning hike in Big Cottonwood Canyon; revisited Blood's Lake and then headed up Peak 10420 and Clayton Peak. Weather in SLC (approx. 4200'): clear, sunny, dry, 71ºF / weather at the summit(s) (10420'-10721'): high winds, below freezing, snow storm. Photos were taken before the storm set in; I was too busy scurrying back down the trail to take any photos once the snow began.