EF1 tornado in Fulton County, Illinois

A tornado crossed into northwest Fulton County from southeast Warren County (NWS Quad Cities) 1.4 miles north-northwest of Avon at 6:56 PM CDT. The tornado tracked northeastward for 2 miles before lifting 2.5 miles north-northeast of Avon at 7:00 PM CDT. The tornado damaged several trees along its path before dissipating in an open field.

An area of low pressure deepened considerably as it tracked from northeast Missouri into southern Wisconsin on March 15th. While the airmass ahead of this system across central Illinois remained capped for much of the day, an approaching upper trough helped weaken the cap and set the stage for scattered severe thunderstorms ahead of an approaching cold front during the evening of the 15th. Several clusters of thunderstorms moved across west-central Illinois, mainly along and west of I-55. The first cluster tracked from just north of Quincy toward the Peoria area, while a second cluster impacted locations from Jacksonville to Springfield. Thanks to moderate instability and strong low-level wind shear near the low track, many of the storms rotated and produced large hail and tornadoes. A total of 4 tornadoes touched down, including an EF-2 just northwest of Trivoli in Peoria County.