* WHAT…Very cold wind chills as low as 28 below.
* WHERE…Portions of southwest and west central Iowa and east
central, northeast, and southeast Nebraska.
* WHEN…Until noon CST Tuesday.
* IMPACTS…The dangerously cold wind chills as low as 30 below zero
could cause frostbite on exposed skin in as little as 30 minutes.
Wind chill values can lead to hypothermia with prolonged exposure.