
"Some cold air pushing in from the north toward the end of the storm could also complicate the forecast, as some places that have rain or a rain and snow mix may end up going to all snow before the storm ends," DeVore said. The track of the storm has shifted southward by 50-100 miles, so correspondingly, the band of heavier snow has also shifted to the south. "The key to who in the Chicago area gets a lot of snow, and who sees more rain at times, is the track of the storm," said AccuWeather Meteorologist Dean DeVore. The amount of snow that will fall is still highly dependent on a few conditions. Have the app? Unlock AccuWeather Alerts™ with Premium+ Motorists heading home in that direction at the end of the day are likely to face increasingly difficult travel conditions. The worst conditions are likely to be south of the city and especially in northern Indiana and over the Lower Peninsula of Michigan. Following an afternoon of wet snow and increasing winds, driving conditions will be poor on many roads for the evening commute before the storm begins to move away Friday night. With temperatures hovering in the 30s, the storm is likely to begin as a mixture of rain and wet snow during the midday hours. This path will allow moisture from the Gulf of Mexico to be drawn in and continue to fuel an outbreak of severe thunderstorms that includes a few tornadoes.

The storm was turning northeastward over the Mississippi Valley Thursday. The storm that will be responsible for the late-week snow in Chicago swung through the Southwest Wednesday after bringing more rain and lower-elevation snow to storm-weary Southern California.
