Schools, businesses and organizations are remaining closed or opening late Thursday morning because of the arctic cold front that's descended upon eastern Nebraska and most of Iowa.
Temperatures will be about 10-20 degrees below average in the northern and central Plains, the National Weather Service said. Wind chills as low as 30 below zero were expected in some spots. The extreme cold could keep some parts of both states in a deep chill Friday as well.
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The weather service also warned of icy roadways and sidewalks because of the rapidly falling temperatures overnight. Surfaces that look wet may be icy.
In Lincoln, the morning low dropped to minus 1 and the wind chill was as low as minus 22, according to the National Weather Service. A wind chill advisory remained in effect for much of eastern Nebraska until 10 a.m.
The Weather Service said on Twitter that the lowest wind chill reported was minus 28 in both Norfolk and Wayne.
The cold spell should be short- lived. After a high only in the teens Thursday, temperatures are supposed to warm back into the mid-30s Friday in Lincoln and then to near 50 both Saturday and Sunday.