A severe thunderstorm pelted Lawrence on Sunday night with heavy rains and hail that, in places, nearly reached the size of baseballs, such as that pictured above that fell in Old West Lawrence.

Emergency officials across the area received many calls as the storm crept through the area, although residents reported little damage and only sporadic flash flooding as of about 11 p.m. Sunday.

The storm triggered tornado warnings in Jefferson County and produced heavy winds and rain. It also caused power outages in the western two-thirds of Lawrence, a Westar official said.