As advertised, that strong front is pressing eastward, and it's raising a ruckus just to the west of the region.
The National Weather Service map looks like something out of a '60s day-glo poster, with watches and warnings all over the place.
Philadelphia and all the neighboring counties on both sides of the Delaware are under a flash-flood watch from 10 p.m. until tomorrow morning.
A tornado watch is in effect in portions of Berks County, and a tornado warning was posted right near the Pennsylvania-Maryland border as a strong cell was on the attack, evident in the radar image.
It could be quite a busy night for the grounds crew at Citizens Bank Park, where the Phillies aef hosting the Marlins.
The projected rainfall amounts have been upped since this morning, with as much as 2 inches possible.
We'll keep you apprised.