10:30pm Update: Cold front is now moving through northern Illinois. An isolated shower or two can't be ruled out over the next couple of hours, but skies are expected to remain mostly cloudy. A little more calm for the overnight and into Friday.
6:38pm Update: Severe Thunderstorm Watch cancelled for Green and Rock counties. The watch is also cancelled for Jo Daviess, Stephenson and Carroll counties in NW Illinois, and for Boone, Ogle and Winnebago counties in north-central Illinois. It remains in effect for DeKalb, Whiteside, Lee and Walworth counties.
(5:40:52 PM) nwsbot: Local Storm Report by NWS DVN: ESE Erie [Whiteside Co, IL] trained spotter reports HAIL of quarter size (E1.00 INCH) at 05:37 PM CDT -- also wind gusts to 45 mph.
Outside of this warning, the weather is fairly quiet over northern Illinois and southern Wisconsin. Right now, it appears as if the highest severe threat may be now located a bit further where a little more instability is located - over west-central Illinois.
(3:54:09 PM) nwsbot: Local Storm Report by NWS MKX: Clinton [Rock Co, WI] public reports HAIL of half inch size (E0.50 INCH) at 03:45 PM CDT --
Severe Thunderstorm Warning issued for southern Rock and Walworth counties until 4pm. Quarter sized hail had been reported with this storm in Beloit, WI. Storm is moving to the east at 25 mph. Large hail will be the biggest threat with this storm. Heads up Sharon and Walworth.
(3:37:23 PM) nwsbot: Local Storm Report by NWS MKX: Beloit [Rock Co, WI] law enforcement reports HAIL of quarter size (E1.00 INCH) at 03:29 PM CDT --
A Severe Thunderstorm Warning has been issued for central Green County until 2:45pm for the possibility of ping pong sized hail and 60 mph wind gusts. Those in the path of the storm need to take shelter immediately. The storm is moving east at 35 mph.