A Tornado Watch remains in effect until 800 PM CDT for northwestern Illinois...and east central Iowa. Remain alert for a possible tornado! Tornadoes can develop quickly from severe thunderstorms. If you spot a tornado go at once into the basement or small central room in a sturdy structure.

At 712 PM CDT, a severe thunderstorm was located over South Sabula Lake Park, or 8 miles west of Mount Carroll, moving northeast at 45 mph. HAZARD...60 mph wind gusts. SOURCE...Radar indicated. IMPACT...Expect damage to roofs, siding, and trees. Locations impacted include... Savanna, Sabula, Argo Fay, Thomson, Mississippi Palisades State Park, South Sabula Lake Park, Wacker, Ideal, Camp Miss-Elk-Ton, Center Hill, and Thomson Causeway.