Lots of run to run variability with this one, small shifts will be the difference between rain, ice and snow for peeps in Northern Illinois and Southern MI
SUMMARY...AN UPGRADE TO A TORNADO-DRIVEN MODERATE RISK WILL BE ISSUED WITH THE MIDDAY DAY 1 CONVECTIVE OUTLOOK. DISCUSSION...PLEASE SEE THE FORTHCOMING 1630Z DAY 1 CONVECTIVE OUTLOOK FOR FURTHER DETAILS.