Summary

Dry and frigid conditions will settle in across Western Wyoming and Eastern Idaho from Sat to Thu with subzero temps expected each day. Sun-Mon will be the coldest days on the slopes with gradual moderation Tue-Thu, while the JH Valley will remain bitterly cold thru Thu due to an inversion. The next chance of snow will be Jan 24-25 with continued low confidence in the pattern for late Jan.

Update