SEVERE THUNDERSTORM WATCH 599 IS IN EFFECT UNTIL 1000 PM EDT FOR THE FOLLOWING LOCATIONS OH . OHIO COUNTIES INCLUDED ARE ALLEN ASHLAND ASHTABULA AUGLAIZE CHAMPAIGN CLARK CRAWFORD CUYAHOGA DARKE DEFIANCE DELAWARE ERIE GEAUGA HANCOCK HARDIN HENRY HOLMES HURON KNOX LAKE LOGAN LORAIN LUCAS MAHONING MARION MEDINA MERCER MIAMI MONTGOMERY MORROW OTTAWA PAULDING PORTAGE PREBLE PUTNAM RICHLAND SANDUSKY SENECA SHELBY STARK SUMMIT TRUMBULL UNION VAN WERT WAYNE WOOD WYANDOT