The NWS offices in Green Bay and Duluth have upgraded their watches and advisories to Heavy Snow Warnings.
The definition of Heavy Snow Warning is:
Heavy Snow with winds less than 25mph and little/no blowing snow.
The warnings across northern Wisconsin are for between 6 and 8 inches of snow by Thursday evening.
Quantitative Precipitation Forecast (QPF) map.
The bullseye of forecasted precipitation is located across central and east-central Wisconsin, showing 0.62" of liquid in the models. This map (to the left) is from the HPC for the next 24 hours.
A ratio of 15:1 produces 9.3 inches of snow, a ratio of 10:1 makes 6.2 inches of snow. The maximum should be located someplace around Wausau or Shawano, with lesser amounts elsewhere.
Closer to home.
NWS Duluth thinks there will be lake enhancement along the south shore of Lake Superior, this could produce 6 to 8 inches of snow across far northern Wisconsin. The map (to the right) is today's weather story from Duluth. Snow amounts are shaded across the region, and expected low temperatures Friday morning are added in blue lettering. NW Wisconsin Weather Blog.
More information about current warnings and advisories for the rest of northwestern Wisdconsin can be found at Derek's NW Wisconsin Weather Blog.