* WHAT...Heavy snow totals from multiple consecutive storms through Saturday night. See Additional Details for specifics.

* WHERE...The Wasatch Mountains, Western Uinta Mountains, and Wasatch Plateau/Book Cliffs.

* WHEN...Until 11 PM MST Saturday.

* IMPACTS...Travel will be very difficult at times. Traction law restrictions may be enacted.

* ADDITIONAL DETAILS...Areas favored by moist northwest flow such as the Upper Cottonwoods, Ben Lomond Peak vicinity, and the Bear River Mountains have a near 100% chance of exceeding 18 inches over a multi-day period between Thursday and Saturday, with a 30-40% chance of exceeding 30 inches. The highest chances are farther north in the Bear River Mountains. The snow will be denser than normal, with warming temperatures bringing rising snow levels through the weekend. There is further possibility of an additional storm Sunday into Monday which would bring a return to colder temperatures and shift the threat of snow southward.