National Weather Service in Riverton

An actual temperature in one Wyoming town was recorded at near 40 below zero.

Two to four inches of snow could fall in the lower elevations, followed by sub-zero temperatures.

The National Weather Service predicts two to four inches of snow and gusty winds, with four to eight inches on Casper Mountain.

Sensitive outdoor plants such as vegetables, fruits, and flowers may be harmed.

Wyoming has seen unusual severe weather from tornadoes and damaging hail, to severe thunderstorms.

NWS Meteorologists say low humidities, unseasonably warm temperatures and strong gusty winds will create erratic fire behavior and new fire starts.