

This record of 22 tornadoes was initially set on June 30th, 2014 during the infamous "Double Derecho" event. The 22 tornadoes that occurred here on March 31st tie the record for most tornadoes to occur in a single calendar day or a 24-hour span in the NWS Chicago forecast area (official NWS tornado records began in 1950).EF-2 near Oxford and Round Grove, IN (ended in NWS Northern Indiana's forecast area).EF-1 near Wellington, IL (started in NWS Lincoln's forecast area).EF-1 from Caledonia, IL to Sharon, WI (ended in NWS Milwaukee's forecast area).EF-1 from Davis Junction to Belvidere, IL.EF-1 from Sublette to West Brooklyn, IL.EF-2 near Amboy, IL (impacting the Woodhaven Lakes Campground).EF-1 near Lanark and Baileyville, IL (started and ended in NWS Quad Cities' forecast area).

EF-1 near Deer Grove, IL (started in NWS Quad Cities' forecast area).A total of 22 tornadoes were confirmed in the NWS Chicago forecast area. Please reference the Tornadoes tab for additional details on these tornadoes.The first round produced mainly scattered instances of large hail across northern Illinois and northwest Indiana, while the second round produced numerous tornadoes and significant damage across the eastern half of Iowa through northern and central Illinois and into Indiana. Locally, two rounds of severe thunderstorms occurred on Friday, March 31: one in the afternoon and another, more intense and widespread round during the evening.A historic severe weather outbreak occurred across the Midwest, Southeast, and Mid-Atlantic regions of the United States on March 31 and April 1, 2023.
