The storm will affect heavily traveled stretches of Interstate 68, I-70, I-76, I-78, I-80, I-81, I-83, I-84, I-87, I-90 and I-95.
Major travel delays and disruptions to daily activities are likely from accumulations ranging from a slushy coating to as much as 12 inches. The snow could fall at the rate of 2 inches per hour. Thunder and lightning can accompany the snow in some locations. Harrisburg, Pennsylvania, had thundersnow early Thursday morning.
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