EF2 tornado in Henry County, Illinois

A brief tornado developed Tuesday morning in Colona, Illinois, and was embedded in a broader swath of damaging straight line winds. The tornado was on the ground for 0.4 miles and west 50 yards wide. the peak estimated winds were 115 MPH. The tornado moved through the northern portion of Colona, and was on the ground for about a half mile. The tornado was captured on video, ripping the entire roof off a gas station and tossing it into a brick building just to the south. The front wall of the building also collapsed. The tornado also uprooted trees, and caused minor house damage.The tornado was rated a low-end EF-2, with maximum winds around 115 mph.

There were two rounds of severe thunderstorms on April 4th. The first round in Illinois occurred during the morning hours. These storms developed in eastern Iowa and moved into northwest Illinois by mid morning. Despite the elevated nature of the storms and a very stable low level, a very strong downdraft surge occurred south of the hail core over the Illinois side of the Quad Cities metro, with the Quad City Airport ASOS measuring a wind gust near 90 MPH. Extensive damage occurred from Rock Island to Colona IL to buildings, trees and power poles, with some structures seeing ripped-off roofs. A survey team determined a brief tornadoes touched down in Moline, Colona, and near Geneseo Illinois.