A quick round of snow and wind this evening will usher in the polar air that we have been talking about.
Already Wednesday morning we had a frigid start to the day. Our coldest reported temperatures came from the Cedarville area where it dropped to -21F and also north of Epoufette in Mackinac County where a viewer reported -22F Wednesday morning, the coldest they have had all season.
A quick hitting and relatively fast moving arctic front will pass Wednesday evening with snow developing just ahead of the front. We expect snow to blossom in the late afternoon hours and then quickly cross through Northern Michigan after the sun goes down. The airmass is pretty dry, so not much more than an inch or two is forecasted, but it will come down quickly once it does with gusty winds leading to blowing and even some drifting of snow. Much of the snow will wind down after midnight.
The bitter cold sweeps in Thursday with daytime highs struggling to get to 5F and some places may even remain below zero all day Thursday. Brisk northwest winds will add to the cold making it feel more like -20F to -40F. There will continue to be snow showers or flurries at times drifting in off of Lake Michigan.
The coldest period will be Thursday night as winds diminish some and skies partially clear. I would be at all be surprised to see a few -30F readings Friday morning in our coldest locations. Snow is looking increasingly likely along/south of highway M-32 Friday afternoon/evening with several inches of accumulation possible. Highs this upcoming weekend will stay chilly, between 10-15F degrees.