Winter Storm in Southeast Big Horn Basin, Wyoming

There are numerous reports of 7 to 10 inches of new snow around the city of Worland.

A combination of a cold front moving across the area, lee side cyclogenesis and powerful jet dynamics produced heavy snow across many portions of Wyoming. The snow hampered holiday travel in many areas. The worst conditions were across Johnson County where blizzard conditions developed and Interstate 90 was closed for several hours during Christmas Day. West of the Divide, the heaviest snow fell across the Jackson Valley where many areas had a foot of new snow. Meanwhile, East of the Divide the heaviest snow fell from Riverton and Worland to Casper where from 6 to 10 inches of new snow fell.