...WIND CHILL WARNING REMAINS IN EFFECT UNTIL 11 AM CST THIS
MORNING...

* WHAT...Dangerously cold wind chills. Wind chills as low as 40
  below zero early this morning.

* WHERE...Northern to east central Iowa.

* WHEN...This morning, with conditions slowly improving through
  midday.

* ADDITIONAL DETAILS...The dangerously cold wind chills could
  cause frostbite on exposed skin in as little as 5 minutes.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A Wind Chill Warning means the combination of very cold air and
the wind will create dangerously low wind chill values. Frostbite
can occur quickly and even hypothermia or death if precautions
are not taken.