Cooler Than Normal With Rain & Snow Until Friday
A large trough of low pressure remains settled over the Pacific Northwest, California, and the southwest today and Friday. This will continue to funnel subtropical moisture and atmospheric instability into the state of Wyoming during this time. A cool front will also cross the region today and tonight. We will see partly sunny skies this morning and then clouds will thicken by this afternoon and evening. There will be just a small chance for showers early today. Rain and a few thunderstorms will then be likely this evening and overnight across lower elevations. Heavy rain and minor flash flooding will also be a concern for much of the state. Snow is expected in the mountains and higher elevations today, but roads will stay mainly wet. Rain could also mix with snow along higher elevations of I-80 (Cheyenne to Rawlins and near Evanston) by later this afternoon and evening. Temperatures will be cool and near or slightly below normal, with daytime highs in the 50's. Snow or mixed showers will continue for the mountains and higher elevations, including parts of I-80, tonight. This will reduce visibility and will also cause roads to become slick and slushy.
For Friday, we will see cloudy to mostly cloudy skies with heavy rain and a few thunderstorms across lower elevations. Snow will continue in the mountains and higher elevations, where we will continue to see areas of reduced visibility with slick, slushy roadways. Temperatures will also be even cooler and well below average.