* WHAT...Very cold wind chills as low as 25 below expected.

* WHERE...Portions of east central and northeast Kansas and central, north central, northeast, northwest, and west central Missouri.

* WHEN...From 6 PM this evening to noon CST Tuesday.

* IMPACTS...The dangerously cold wind chills as low as 25 below zero could cause frostbite on exposed skin in as little as 30 minutes.

* ADDITIONAL DETAILS...The coldest wind chill values, between -20 and -25, will be across north central and northeastern Missouri.