8:00 am Update: Storms from this morning are beginning to wind down, however, there are a few more showers/storms developing in eastern Iowa that will be here around 10am. Stronger storms are possible from mid-afternoon to this evening as the main low pressure and cold front move through.
If you're a user of the Chicago NWS Radar:
ALL USERS OF THE KLOT WSR-88D ARE REMINDED THAT AFTER FRIDAYS SOFTWARE FAILURE THE KLOT WSR-88D IS OUT OF CALIBRATION AND RUNNING HOT. REFLECTIVITY VALUES APPEAR TO BE RUNNING 10 TO EVEN 15 DBZ TO HIGH. TECHNICIANS ARE AWARE OF THE PROBLEM AND WAITING FOR PARTS TO ARRIVE. IN THE MEANTIME...PLEASE USE CAUTION IN INTERPRETING REFLECTIVITY DATA.
6:35 am Update: Heavy rainfall moving through central and northern Boone County from Belvidere, Poplar Grove and Capron. Heavy rainfall and frequent lightning will occur with these storms as they move east. Further west, moderate to heavy rain will continue for the next hour or so. Nothing severe is expected at this time.
(6:02:23 AM) nwsbot: Local Storm Report by NWS DVN: Mount Carroll [Carroll Co, IL] trained spotter reports HAIL of pea size (E0.25 INCH) at 05:40 AM CST -- delayed report.
Thunderstorms late Monday night produced pea to nickel sized hail across northern Illinois and southern Wisconsin. Once the storms moved north, dense fog developed but within the past two hours visibility has improved in most locations.
Scattered showers and storms will continue to move through the area this morning becoming a little more numerous through the afternoon and evening. Right now, rain with a few embedded thunderstorms are moving into Stephenson and Carroll counties from Freeport, Pearl City to Lanark and Milledgeville. Severe weather isn't expected with these storms but heavy rainfall will be likely.