Be Grateful for the Rain You Get

These are the Severe Weather Outlook maps for today (Thu.), tomorrow ( Fri.) and the next day (Sat.).  SPC upgraded to a Slight Risk Area (in yellow) for SE Wisconsin and N. Illinois with the early PM update.  The Marginal Risk Area (dark green) sneaks into West Michigan west of a line from Benton Harbor to Traverse City.  SPC says:  ” Afternoon heating of the pre-frontal boundary layer will support airmass destabilization sufficient to support development of thunderstorms, with greatest coverage of storms expected from southeast Wisconsin southwestward along the boundary to eastern Iowa/northwest Illinois. Within this area, the strongest…