A few thunderstorms could be strong to severe in the Central Valley. Best time frame for stronger thunderstorms will be from 10a through 5p Thursday. Although the chance is low, damaging winds, funnel clouds or an isolated tornado cannot be ruled out. pic.twitter.com/uPjbvYBLld

Sign up for the Morning Brief email newsletter to get weekday updates from The Weather Channel and our meteorologists. S​evere thunderstorms and tornadoes are a threat in the South this weekend as a dangerous threat of flooding rain spreads as far north as the Ohio Valley and central Appalachians.

Strong tornadoes are possible across the South as storms pass through the Gulf Coast region. Some locations could see half a foot of rain, worsening flooding.