Tornadoes originate from strong thunderstorms. Thus, because tropical storms and hurricanes are just clusters of thunderstorms, it's possible for tornadoes to form during a tropical storm or hurricane. And that's exactly what happened on this date in 1979 as the remnants of Hurricane David passed through this area.

David began its destructive path in the Caribbean with 150-mph winds. But by the time it reached us, David was just a fast-moving tropical storm with maximum winds around 50 mph. However, David's thunderstorms spawned four tornadoes in this area. One tornado 200 yards wide with winds that topped 100 mph traveled three miles through New Castle county, ripping several homes apart near Claymont. In Pennsylvania, tornadoes touched down in Chester and Berks counties, while a fourth twister struck Cape May County in New Jersey. All told, the tornadoes caused one fatality, ten injuries, and several million dollars in property damage.

So even though we don't usually associate the two, history has demonstrated that a hurricane can spawn a tornado.