A potent cluster of thunderstorms that ripped down trees and flooded roads in parts of the region may have spawned a tornado in South Jersey on Friday afternoon. The National Weather Service said it would send a team of investigators to Atlantic County to determine whether damages were the result of straight-line winds or the kind that blow in circles.

Many trees and utility poles were damaged, a tree crashed through a house and golf ball-sized hail was reported in one New Jersey town.