Arctic air will persist across the state of Iowa from today into early Tuesday. This will bring bitterly cold wind chills to the state. There will be brief limited periods this afternoon and again Sunday afternoon when portions of the state may see some improvement in wind chills and then wind chills will again quickly drop into the evening.
Additionally, even colder air will move into the area Sunday into Monday, which is when almost all of the state will then be under a wind chill warning at that time. The wind chill warning will be in effect from now, through noon Tuesday. Expect wind chills to range from 20 below zero to 45 below zero.
The dangerously cold wind chills will cause frostbite in as little as 10 minutes to exposed skin. Frost bite can occur quickly and even hypothermia or death if precautions are not taken. A Wind Chill Warning means the combination of very cold air and the wind will create dangerously low wind chill values. Frost bite can occur quickly and even hypothermia or death if precautions are not taken.