Winter Storm Warning for tonight and tomorrow. The problem areas overnight will be west of Freeport where a rain/snow mix is likely through the overnight. Snowfall accumulations in Jo Daviess Co. may approach 6 inches by morning. Rain will be likely for all other areas, with a few rumbles of thunder. Temperatures will stay in the middle to upper 30s overnight.
Rain will change to snow during the midday hours of Thursday. This will occur from west to east throughout the day. Snow will become heavy with increasing strong wind. Zero visibility blizzard conditions are possible Thursday afternoon and evening areawide. Watch for sustained wind 30-40mph with wind gusts around 55mph. Power outages will be possible!
Snow will taper off rapidly around midnight Thursday night. Total snowfall accumulations will surpass 12″ from Madison, southwest to Dubuque and Cedar Rapids. Freeport and Janesville should expect 6-12″ with 4-8″ likely for the Rockford Metro. 3-6″ is forecast for DeKalb, Rochelle, and Dixon.
Much coler temperatures are expected in the wake of this powerful winter storm. Another winter storm is possible Tuesday and Wednesday of next week.
This post was written by Eric Sorensen on December 19, 2012