EF1 Tornado — Madison, Illinois

2025-05-16 · near Madison, Madison, Illinois

Event narrative

After crossing from St. Louis City, the tornado weakened. It caused EF-1 structural and tree damage in Granite City and Pontoon Beach before dissipating near Southern Illinois University - Edwardsville.

Wider weather episode

During the afternoon of May 16th, numerous supercells developed ahead of a cold front and within a favorable environment for high-end severe weather. These thunderstorms produced the St. Louis tornado which tracked into Madison County. Elsewhere, there were numerous reports of large hail and damaging winds.

View location on OpenStreetMap → (38.6894, -90.1974)

Source: NOAA Storm Events Database, event_id 1262242. Narrative written by the NWS forecast office that issued the report.