Updated: winter storm warning issued through midnight Sunday
LINCOLN - The National Weather Service has issued a winter storm warning for heavy snow beginning at 6 p.m. Saturday through midnight Sunday.
A wind chill warning is also in effect from midnight Sunday to noon Tuesday.
Snow is expected to develop this evening and gradually taper off from west to east late Sunday. The heaviest snow is expected to occur between midnight Saturday and noon Sunday, lingering a bit longer south of Interstate 70.
Accumulations of 5 to 8 inces are possible between the Illinois River Valley and I-72. Locations south of a line from Pana to Danville have the potential to receive 8 to 12 inches of snow, with the highest totals likely south of I-70.
Winds will swing around to the north by late tonight behind a strong cold front. After the frontal passage, winds are expected to increase to 15 to 20 mph with gusts in excess of 30 mph. That will result in blowing snow, especially in East Central Illinois.
Expect hazardous travel conditions later tonight through Sunday. The gusty northerly winds will produce considerable blowing and drifting snow, producing near blizzard conditions at times with rapid changes in visibility. The winds will also contribute to bitterly cold wind chill values by late Sunday night, with wind chill values of 25 below to 40 below zero by Monday