Avoid outside activities if possible. When outside, make sure you wear appropriate clothing, a hat, and gloves.

WIND CHILL WARNING REMAINS IN EFFECT UNTIL NOON CST MONDAY... ...WIND CHILL ADVISORY REMAINS IN EFFECT FROM NOON MONDAY TO 9 AM CST WEDNESDAY... * WHAT...For the Wind Chill Warning, dangerously cold wind chills expected. Wind chills as low as 35 below zero expected. For the Wind Chill Advisory, very cold wind chills expected. Wind chills as low as 30 below zero expected. * WHERE...McHenry, Lake IL, DuPage and Northern Cook Counties. * WHEN...For the Wind Chill Warning, until noon CST Monday. For the Wind Chill Advisory, from noon Monday to 9 AM CST Wednesday. * IMPACTS...The dangerously cold wind chills could cause frostbite on exposed skin in as little as 10 minutes.