EF2 tornado in Sangamon County, Illinois

A tornado touched down in an open field one mile northwest of Sherman at 6:12 PM CDT. It tracked northeastward, causing damage to two houses and two outbuildings before crossing I-55. The tornado caused severe roof and siding damage to numerous homes and damaged many outbuildings and detached garages in a subdivision immediately east of I-55. It continued northeastward into a largely rural area, damaging two large barns at a horse farm and throwing sheet metal into open fields before dissipating just west of Wolf Creek about 2 miles southeast of Williamsville at 6:20 PM CDT.

Two rounds of strong to severe thunderstorms spawned 13 tornadoes across central Illinois during the afternoon and evening of March 31st...including an EF-3 tornado that killed 3 people in Robinson in Crawford County. The first round of convection developed along a warm front lifting northeastward through the area during the afternoon. These storms were primarily very large hail-producers, with up to baseball-sized (2.75 diameter) hail being reported in the town of Banner in Fulton County. Once the warm front lifted into northern Illinois, a modestly unstable but highly sheared environment was in place during the late afternoon and evening...with CAPE values of 1500-2500J/kg and 0-6km bulk shear in excess of 70kt. As a trailing cold front approached from the west, additional supercell thunderstorms developed that produced tornadoes, very large hail, and damaging wind gusts. The cells eventually congealed into a broken line as they pushed eastward to the I-57 corridor by mid-evening. Meanwhile, a discrete supercell ahead of the line tracked south of I-70, dropping the EF-3 tornado in Crawford County.