Two systems will ride the boundary in the coming days, the first arriving early Friday morning. Potential exists for several inches of snow accumulation in southern Wisconsin by Saturday night. Cold continues into next week.
8-12" is expected near and south of the WI/IL by midnight Friday. Snow is expected to begin at or after 6PM on Thursday and could be heavy at times. Lesser amounts are expected north of I-94, to an inch or less in central Wisconsin. Some adjustments may be needed tomorrow as details become clearer
The storm tonight, Friday, and possibly Saturday belongs to a decreasing PNA/ AO teleconnection regime, the best pattern for heavy snow in Wisconsin. Next week we head deeper into this pattern with a deeper western trough digging in the southern stream. Mid-range models are not that interesting for Wisconsin. They do show a storm system during the 2/13-2/16 timeframe crossing the country further to the south. Maybe models change to support a bigger storm in future runs? At this moment I'm betting that the peak time for this pattern is our current system as we flux into the western trough. Just not thrilled with next week yet.