JACKSON, Wyo. — The National Weather Service in Riverton has issued a Winter Storm Warning for all of Teton County from 11 p.m. on Tuesday through 11 p.m. on Thursday. The warning also includes Star Valley and the Upper Green River Basin.
Back-to-back storms will impact Northwest Wyoming during this period with heavy snow and strong winds resulting in dangerous travel conditions. Wind gusts of 30-40 mph and 60+ mph over the higher elevations can be expected at times during these storms.
The first storm will impact the area from Tuesday night through Wednesday afternoon with snow totals ranging from 7-15 inches in the Tetons and 2-6 inches in the Jackson Hole Valley. This will be the colder of the two storms with lighter/more powdery snow as a result. Wednesday morning will offer the most difficult travel conditions due to heavy snowfall rates and blowing snow.
After a relative lull on Wednesday night, the second storm will impact the area from Thursday morning through Thursday night with snow totals ranging from 7-15 inches in the Tetons and 1-4 inches in the valley (isolated higher amounts possible for higher elevation valley areas).
Warmer air will be arriving with the second storm with temperatures rising into the upper 30s in the valley on Thursday afternoon. Some rain could even mix in around Jackson. This will result in a transition to sloppy/wet/slushy conditions in the valley with wet/heavy snow in the Tetons. Travel conditions will be most difficult on Thursday afternoon, especially over the passes.
Alan Smith, Meteorologist
