The southerlies picked up in earnest on Friday night and Saturday. At noon on Saturday, peering into the Salt Lake Valley from above White Pine Canyon, one could see significant clearing in portions of the Salt Lake Valley, but thick smog remained over the lowlands further north.
That portion of the cold pool over the Great Salt Lake and West Desert has been incredibly stingy, like a bad cold unwilling to go away. Even by Sunday afternoon, despite a tempest blowing at upper elevations, the cold pool remained. Check out the observations below from 3 PM MST (2200 UTC) Sunday. 50s across the Salt Lake Valley, but 33˚F on Hat Island, 33˚F along I-80 in the West Desert, and 34˚F in Wendover!