From NWS:
...WIND CHILL ADVISORY IN EFFECT FROM 1 AM TO 11 AM EST
WEDNESDAY...
* WHAT...Very cold wind chills expected. Wind chills as low as
20 below zero.
* WHERE...Portions of central, east central, north central and
west central Indiana.
* WHEN...From 1 AM to 11 AM EST Wednesday.
* IMPACTS...The cold wind chills could cause frostbite on exposed
skin in as little as 30 minutes.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
Use caution while traveling outside. Wear appropriate clothing, a
hat, and gloves.