COLD WEATHER ADVISORY IN EFFECT FROM 6 PM MONDAY TO 10 AM EST TUESDAY... * WHAT...Very cold wind chills as low as 20 below zero expected. * WHERE...Portions of northern Indiana, southwest Michigan, and northwest Ohio. * WHEN...From 6 PM Monday to 10 AM EST Tuesday. * IMPACTS...The dangerously cold wind chills as low as 20 below zero 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.