A Wind Chill Warning for the entire area from this evening to Thursday afternoon. Dangerously cold wind chills are expected to last for a couple days and could be life-threatening.

What to expect: …Frigid Temperatures with Extremely Dangerous Wind Chills Expected This Evening Through Thursday Afternoon for all of Northern Ohio and Northwest PA…

Today:  Temperatures fall throughout the day after the passage of a strong cold front.  Temperatures will reach single digits by evening. Wind chill values will drop below zero beginning in the late afternoon.

Tonight:  Temperatures will continue to drop overnight, falling below zero after midnight. Winds will be blustery all night and wind chill readings by after midnight will be colder than -20F. Wind chill readings could be as cold as -35F by daybreak, which would yield frostbite in as little as 10 minutes.

Wednesday: Little recovery in temperatures with most areas likely staying below zero.  Dangerous wind chills will continue with values staying below -25F. 
Wednesday Night: Lows well below zero and the coldest wind chills of this stretch expected.  Winds remain elevated. Wind chill readings could be as cold as -35F to 40F by daybreak, which would yield frostbite in as little as 10 minutes.

Thursday: High temperatures in the single digits. Wind chills improve through the day as winds begin to diminish across the area. Wind chills go above -20F by Thursday afternoon and continue to improve overnight.

Friday:  Temperatures continue to recover with high temperatures back in the teens to lower 20s by late afternoon.

…Wind Chill Criteria…Wind Chill Warning:  Wind chills of -25F or colder for more than a few hours with wind of 6 MPH or greater.
Wind Chill Advisory: Wind chills of -10F to -24 for more than a few hours and with wind of 6 MPH or greater.