An updated tornado warning was issued by the National Weather Service on Tuesday at 5:52 p.m. in effect until 6:30 p.m. for Bucks, Montgomery and Philadelphia counties.

Downpours set off flood warnings Wednesday night for Philly and surrounding areas, and most of Chester County and northern Delaware. These conditions may be around until Monday, maybe longer.

Flood waters are subsiding after Wednesday's rain, but there are more storm chances in the Philly region on Thursday.

People in the warning area are urged to seek immediate shelter inside a sturdy building and to stay away from windows in case a tornado touches down.

A tornado warning issued for Bucks, Montgomery, Chester, and Delaware counties, and Philadelphia has expired. No tornados have been confirmed to have touched down as of Tuesday afternoon.

On Tuesday at 5:19 p.m. the National Weather Service released a tornado warning in effect until 5:45 p.m. for Bucks County.

The stark warning about the threat of a tornado concerns Washington DC, and the surrounding areas, such as the state of Pennsylvania and its large cities like Philadelphia

A hot and muggy Tuesday is ahead for the Philadelphia area with high temperatures in the 90s that will feel more like the triple digits.