Thunderstorm Wind in Greene County, Illinois

Thunderstorm winds destroyed an open sided barn on the east side of Illinois Route 267, that was about six tenths of a mile north northeast of the intersection of Illinois Routes 267 and 108. Also, a few large tree limbs were blown down.

On Monday, October 11th 2021 (Columbus Day), the potential for severe weather existed across east-central/northeast Missouri and most of central and northern Illinois. Despite limited instability (energy for storms to develop), plentiful shear (changing wind speed or direction with height) from a potent mid-level storm system provided the potential for severe storms. Though most storms never became strong or severe, one supercell in particular became organized enough to produce a tornado.