Unlike most systems that move through the Midwest and produce snow, this area of low pressure will drop the most snow from the warm front ahead of the actual center. As warm air is forced north and overruns the cold air already in place a lifting mechanism is created. Anytime you get lift in the atmosphere and moisture is in place, precipitation will likely follow, and in this case it will be cold enough for snow. The best place for this meteorological process will be from South Dakota through Lower MichiganMuch of the Midwest will get in on the accumulating snow, some areas will likely approach a foot of snow. The best chances for 10-12" will be across northern Lower Michigan back through eastern Wisconsin. Meanwhile near 6" of snow will set up further west. Most of this snow will be very light and fluffy, piling up quickly. It will not take too much to blow the snow around. As this system pulls away on Sunday, the coldest air in years will fill in behind. Check out the morning wind chills Sunday, forecasted from the GFS model. For more, follow on Twitter and Facebook!
