Strong-to-severe thunderstorms will threaten the central U.S. and the Ohio Valley over the next few days. 

RESEARCHERS MAKE DISCOVERY OFF PACIFIC COAST TO BETTER UNDERSTAND EARTHQUAKES: 'MESSENGERS FROM THE DEEP'

The unsettled weather will bring the risk of large hail, damaging winds, heavy rain and tornadoes.

This comes as the potential for dangerous flash flooding will impact much of Texas, with several inches of rain forecast in a short period of time.

Meanwhile, summertime heat is spreading into the Northeast and the Northwest, where record highs are expected later this weekend.