UPDATE: 4:01PM. TORNADO WARNING JUST ISSUED ON CELL WEST OF ROCKFORD
Tornado warning continues on the storm west of Chicago near Amboy.
The storm west of Rockford is showing signs of rotation and should be carefully watched.
Severe thunderstorm warnings for the Mississippi River-bordering counties of northeast Iowa and southwest Wisconsin for large hail and damaging winds.
|Radar from 3:56pm, click to enlarge|