F2 tornado in La Salle County, Illinois

The tornado formed on the ridge northeast of Utica and moved across County Road 2803, west of 10th Street. A garage was destroyed and trees were damaged. The tornado became a wide multiple vortex tornado at this point. It caused damage to 2 homes, trees and outbuildings on Route 6, west of 11th Street. Part of the roof of a house was torn off. A storage building was damaged and a garage roof removed on 11th Street. A garage and grain bin were destroyed on County Road 2950. The tornado crossed I-80 at 12th Street damaging a building and flipping a semi-tractor trailer. The driver was not injured. North of I-80 a small satellite tornado formed behind the large parent tornado. It had a damage path 2 miles long and 5 to 20 yards wide. Its track was about 1/4 to 3/4 mile south of the main track. It caused no damage. The main tornado destroyed a machine shed on 13th Street and knocked down power poles. On 31st Street west of 14th big pine trees were snapped and a house suffered roof damage. A barn was destroyed on 14th north of 31st. On 32nd Street west of 15th, a two story house was hit. The top floor was mostly destroyed. A machine shed was destroyed on 16th between 32nd and 33rd. The tornado ended at 33rd and Route 23 where there was minor tree damage.