The biggest storm of the winter walloped Southern California on Thursday, forcing the closure of Pacific Coast Highway, damaging homes and vehicles and bringing with it the possibility of "life-threatening" debris flows just a month after fierce Santa Ana winds propelled a firestorm across L.

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.

Severe storms in the South this weekend could lead to flash flooding and even tornadoes.