Cold Weather Advisory issued February 19 at 1:36PM CST until February 20 at 9:00AM CST by NWS Des Moines IA

* WHAT…Very cold wind chills as low as 20 to 30 below expected.

* WHERE…Much of northern, central, and southern Iowa.

* WHEN…From 9 PM this evening to 9 AM CST Thursday.

* IMPACTS…The dangerously cold wind chills as low as 30 below zero
could cause frostbite on exposed skin in as little as 10 minutes.
Frostbite and hypothermia will occur if unprotected skin is
exposed to these temperatures. Wind chill values can lead to
hypothermia with prolonged exposure.