JACKSON, Wyo. – The first real taste of winter will arrive in Jackson Hole this weekend as our extended stretch of mild fall weather comes to an end. The National Weather Service in Riverton has issued a Winter Storm Warning for the Teton and Gros Ventre Ranges from 9 p.m. Friday through 6 p.m. Sunday. The Jackson Hole Valley is not included in this warning.
Heavy snow and rain will arrive on Friday night and continue throughout the day on Saturday along with gusty southwest winds. Snow levels will start out around 8,500 feet on Friday night, before lowering on Saturday morning and ranging from 7,500-8,000 feet during the daytime hours.
A cold front will arrive on Saturday evening with snow levels falling to the valley floor, though snowfall will be more showery and intermittent in nature on Saturday evening and Saturday night.
Total snowfall through Sunday morning will range from 7-14 inches above 9,000 feet, 5-10 inches around 8,000 feet and a trace to 2 inches in the Jackson Hole Valley.
Additional light snow showers and flurries will continue possible during the day on Sunday along with much colder temperatures, but the core of the storm will be well to our south at this point so any additional accumulations will be very light.
Travelers should expect winter conditions over Teton Pass this weekend, with a combination of wet and slushy roads during the day on Saturday giving way to icy and snow-packed conditions from early Saturday evening through Sunday.
High temperatures on Saturday will reach the mid-40s in the valley with lows falling into the upper 20s on Saturday night/Sunday morning. Highs on Sunday will only reach the upper 30s. We will see a break in the pattern on Monday, but temperatures will remain chilly with highs in the low 40s.
Alan Smith, Meteorologist
