CHICAGO, ILLINOIS — Forecast models are beginning to highlight a potential severe weather setup across northern Illinois on Tuesday, with meteorologists watching closely for supercell thunderstorms that could develop along a warm front stretching across the region. New model guidance suggests storms may organize within the warm sector of the system, increasing the possibility of rotating thunderstorms capable of producing tornadoes, large hail, and damaging winds.
The latest model projections show storm development extending from eastern Iowa through northern Illinois and toward the Chicago metro area, with some of the strongest storms appearing near Rockford, Chicago, Peoria, and Davenport during the peak period of instability.
Forecast Models Indicate Supercells May Form Across Northern Illinois
Meteorologists say the RFS model is now within forecasting range for Tuesday’s weather system, and early signals indicate that discrete supercell storms could develop along the warm front positioned across northern Illinois.
If storms remain separated rather than forming into a solid line, the environment may support rotating supercells capable of producing severe weather hazards. The radar projection imagery shows multiple clusters of storms forming across northern Illinois counties between Rockford and Chicago, with additional storms developing farther southwest toward Peoria and central Illinois…