Winter Storm in Casper Mountain, Wyoming

A trained spotter measured 32 inches of new snow on Casper Mountain. SNOTEL stations estimated anywhere from 23 to 27 inches of snow.

A strong feed of moisture from the Pacific Ocean combined with favorable upper-level dynamics and low-level upslope flow to produce heavy snow across portions of western and central Wyoming. The heaviest snow fell in Natrona County with Casper Mountain receiving the most snow with as much of 32 inches reported. The city of Casper had 10 to 16 inches with higher amounts in the southern sections of town. Thermopolis and Lander also had favorable upslope flow and averaged around 10 and 8 inches of new snow, respectively. Less snow fell in other areas, but gusty winds combined with the snow to produce near white-out conditions that closed major roads including Interstate 25 and US 20/26. Across the west, the most snow fell in the vicinity of Jackson Hole with reports of 6 to 12 inches fairly common, especially north of the town of Jackson.