Authorities say even colder weather has been detected on its way to much of Iowa and the Midwest.
In an urgent winter weather message, the National Weather Service warned Friday morning that more life-threatening cold will hit the region Saturday night or Sunday morning. The service says temperatures could plummet to minus 30 and wind chill readings could reach minus 60 and remain dangerously low through Tuesday morning.
The service says "this will be the coldest air seen across the area since February 1996."
Most of Iowa is in a deep freeze Friday morning. The weather service reported overnight lows of minus 20 in Waterloo, for example. In Des Moines the low temperature of minus 6 overnight has risen 3 above zero.
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