India, Aug. 9 -- Severe thunderstorm warnings were issued for parts of Pennsylvania and the Oklahoma-Texas border area, with forecasters warning of strong winds, hail and possible damage to trees and buildings.

The National Weather Service (NWS) issued a warning for central Mercer County in Pennsylvania, while a separate alert covered parts of northwestern Jefferson County in Oklahoma and northeastern Clay County in Texas. Residents in the warned areas were advised to move indoors, stay away from windows and remain in a safe location until the storms passed.

Pennsylvania Severe Thunderstorm Warning: Affected Areas

The National Weather Service office in Pittsburgh issued a severe thunderstorm warning for central Mercer County. The warni...