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.

Residents in parts of New Jersey and Philadelphia shared photos of yellow sky, as tornado and thunderstorm warnings were in effect. What does it mean?

Severe storms dumped a lot of rain on the Philadelphia region Wednesday night, prompting tornado warnings and flash floods. Some people had to be rescued from their cars.