Forecast

In the Casper area, rain should turn to snow Saturday afternoon.

Further south, parts of I-80 and adjacent highways were closed due to winter conditions.

I-25 between Colorado and Casper will also see considerable areas of blowing and drifting snow, Day says, with strong northwest winds Thursday.

Travel could be very difficult, with patchy blowing snow significantly reducing visibility.

Wednesday's temperatures will likely be some 30 degrees colder than Tuesday's high temperatures.

For the latest road conditions, call 511, visit WyoRoad.info or download the Wyoming 511 app.

Thursday also has a 70% chance of precipitation, likely in the form of snow, with a high temperature near 22 F.

Visit WyoRoad.info for current road conditions or download the Wyoming 511 app.

Several hours of sub-freezing temperatures may lead to a killing freeze for the area.

The precipitation is expected to begin late Friday night, with lulls at times through the weekend.

Hikers and campers headed into the impacted areas should be prepared for winter conditions.

The National Weather Service in Riverton earlier Wednesday warned of the potential for numerous severe thunderstorms in the Casper area.