This is an evaluation of mean snowfall accumulated over 12 hours. The model is the SREF.
Below is where we’ll start off, with the SREF image of about 30 hours out from now.
We see heavy snowfall totals centered around the Dakota areas, with upwards of 15” in 12 hours.
A blizzard is expected in the Dakotas.
We also see precipitation beginning to spread eastward into the Great Lakes and putting down widespread 4-6” totals in 12 hours.
Below is the next 12 hours image from the SREF.
12 hours later, we see heavy snowfall being projected in the Upper Midwest, particularly Minnesota into Central Wisconsin, even back into New York. The Dakotas will still be in bands of heavier snowfall.