A severe thunderstorm warning is in effect for pieces of northern Delaware, Delaware County, South Philly, and South Jersey.
The National Weather Service says a storm capable of producing 60 m.p.h. winds was moving northeast and could affect Philadelphia International Airport by 10.
It's a rather dramatic looking mass, and more of the same is expected later this afternoon into tonight.
After what we went through in July, however, for our money it beats an "excessive heat warning."