A tornado warning is in effect for Philadelphia and parts of southeastern Pennsylvania, including Montgomery, Chester, Delaware and Bucks Counties until 5:45 p.m, the National Weather Service says.Tuesday's weather forecast brings two distinct risks to the Philadelphia region — we've issued a NEXT Weather Alert for excessive heat during the day and chances of storms at night.

The flash flood warnings have expired, but on Wednesday night, water quickly pooled on some roads, and drivers needed to be rescued from their cars. Reporter Brandon Goldner is in Chadds Ford, Pennsylvania,