A storm system moving onto the West Coast will bring snow to much of the Rockies. Heavy snow will be possible through Thursday from portions of Colorado to California. Up to 15 inches of snow will be possible for the higher elevations of Arizona and up to 20 inches in portions of Utah. Travel difficulties, winds to 40 miles per hour, and low visibilities will be possible. Across portions of West Texas, ice accumulations of .15" will be possible through tomorrow afternoon.