The National Weather Service has issued a tornado watch for parts of Philadelphia region, including South Jersey and Delaware.

The watch is in effect until 5 p.m. Saturday.

The Weather Service is watching Southeastern Pa., and 15 New Jersey counties.

Counties in Pennsylvania include: Bucks, Chester, Delaware, Montgomery, Philadelphia and Berks counties.

In New Jersey, the watch includes: Atlantic, Burlington, Camden, Cape May, Cumberland, Gloucester, Ocean and Salem counties.

And, in Delaware, it includes New Castle and Sussex counties.