Cooler Temperatures, Lots of Incoming Rain For Wednesday
Temperatures will begin to turn cooler across the Cowboy state today (Tuesday) and through Thursday. A slow-moving cold front will allow for plenty of instability and moisture across western and eastern parts of the state. Today, there will be a very good chance for rain showers and developing thunderstorms over all Wyoming counties. Best chance for thunderstorms will be between 3pm – 10pm tonight. Some thunderstorms could be severe, with heavy downpours, hail, and very strong gusty winds.
Wednesday, a significant rain event is likely for southeast Wyoming and parts of the western mountains and canyons will see moderate to heavy rainfall at times. This is going to produce a significant concern for some flooding and land slides in the more mountainous areas. Rivers and creeks will be able to rise rapidly depending on rainfall amounts through mid-week.
Snow is a realistic possibility Wednesday night into Thursday morning across higher terrain areas along I-80 between Cheyenne, Laramie and toward Arlington. A mix of snow and rain is also possible during that time across other parts of eastern and northeast Wyoming.