Tow truck workers walk along a flooded section of the Cobbs Creek Parkway after freeing a stuck car, Wednesday, April 30, 2014, in Philadelphia. (AP Photo)
A man walks across a flooded section of the Cobbs Creek Parkway as a tow truck worker tries to free a swamped car, Wednesday, April 30, 2014, in Philadelphia. (AP Photo)
A man waves for a tow truck after getting swamped trying to cross a flooded section of the Cobbs Creek Parkway, Wednesday, April 30, 2014, in Philadelphia. (AP Photo)
A car gets swamped by a wave from a passing tow truck as they pass down a flooded section of the Cobbs Creek Parkway, Wednesday, April 30, 2014, in Philadelphia. (AP Photo)
A pedestrian crosses the street in a rainstorm, Wednesday, April 30, 2014, in Philadelphia. The area can expect widespread showers with possible thunderstorms with a flood watch in effect through Thursday morning. (AP Photo)
A man waits for a tow truck after getting swamped trying to cross a flooded section of the Cobbs Creek Parkway, Wednesday, April 30, 2014, in Philadelphia. (AP Photo/)