Strong Tornado Area in Effect for Northern Illinois and Southern Wisconsin With EF-2+ Possible and Upgrade Likely as Intense Supercells Target the Region From 3 to 9 PM Today
NORTHERN ILLINOIS/SOUTHERN WISCONSIN — A strong tornado area is in place today, June 11, for northern Illinois and southern Wisconsin, with the primary severe weather window running from 3:00 PM to 9:00 PM. Intense supercells are expected to develop following a morning round of storms, and the extreme shear and instability combination in place today…