Most of West Michigan will see 1-3″ of snow today (Tue.). This will accumulate on the grass and a litttle bit on lesser-traveled roads. A good portion of the snow will melt on more heavily-traveled roads due to some expected road salt and the heat from the friction of the car tires, but some slick spots are possible on main roads, too. As I type this, around 2″ of snow has fallen across the I-96 corridor from G.R. to Lansing. Temperatures should be mainly in the low 30s today, close to the freezing mark. However watch out for slick spots Tue. evening/night as temperatures fall.
Here’s North American Snow and Ice Cover. This is from Sunday AM (13th), so it does not include the snow that has fallen in the last 48+ hours. I’ll update this map later today or this evening. The main point is that we now have an extensive snowpack over much of Canada. Air coming off that snowpack is going to be cold.
More significant snow is likely from Thursday to Saturday from mainly lake-effect – as even colder air moves into Michigan. The overnight run of the GFSX model gives G.R. high temperatures of 28 on Friday, 29 on Saturday and 26 on Sunday – plenty cold enough for perhaps a prolonged period of lake-effect snow and slippery driving conditions.
I think I’ll start a separate thread for the Thurs. – Sun. cold and snow.