BUCKHANNON — With four to six inches of snow on the way, the National Weather Service office in Charleston has upgraded Upshur County to a winter storm warning that is in effect through Tuesday morning.

“Winter storm warnings and weather advisories have been expanded northwestward for a low pressure system that encroaches from the southwest and brings accumulating snow into Tuesday,” the NWS said in issuing the latest alerts Monday. “Arctic air in place will allow for all snow, heaviest this evening into the overnight hours. This will promote slick and hazardous travel during both rush hour commutes today and the morning rush hour Tuesday.”

Snowfall totals of four to six inches are expected in most of Upshur County, while the higher areas to the east could see eight inches or more.

Frigid temperatures will persist, plummetting to a low of just 7 degrees above zero on Tuesday night.

“Dangerous wind chills could be possible Tuesday and Wednesday,” the NWS warns.

In the higher elevations, the wind chill could be well below zero.

“The cold wind chills as low as 10 below zero could result in hypothermia if precautions are not taken,” according to the NWS.

Looking forward, temperatures are expected to rebound slightly — but still remain at or below freezing — later in the week before dropping again over the weekend. The low temperature Saturday night is 4 degrees, according to the latest forecast.