* WHAT…Very cold wind chills of 20 to 30 below zero expected.
* WHERE…Portions of northern, western, and central Iowa.
* WHEN…From 3 AM to 11 AM CST Monday.
* IMPACTS…The dangerously cold wind chills could cause frostbite
on exposed skin in as little as 10 minutes.
* ADDITIONAL DETAILS…Wind chill values will fall to similar or
colder levels again Tuesday morning.