MD out for parts of western, central and northern Minnesota for possible heavy snowfall rates of 1 inch/hour along with marginal blizzard conditions thru late this Thursday evening.
Low pressure over far southeast Minnesota at 8 PM will lift northeast into central Wisconsin later tonight.
Winter Storm Warning in pink
Winter Weather Advisory in purple
These headlines remain in effect thru Friday (9 AM) except along the South Shore in northwest Wisconsin where the warning and advisory are in effect thru Noon or 6 PM Friday respectively.
Note: There will likely be locally higher amounts embedded in that 12-15″ snow band, and the threat for mixed precipitation has pretty much ended as of 8 PM this evening.
00z HRRR model 12-27-18
Simulated radar forecast valid thru 6 AM Friday.
Snow will continue to fall across the Northland tonight, but the snow will diminish from NW-SE Friday morning.
18z NAM-WRF model 12-27-18
Wind Gust Forecast from Midnight tonight to 7 PM Friday
Gusty north winds will spread W-E across the Northland later tonight, and those gusty winds will continue into Friday morning. Areas of blowing snow will occur across parts of the area thru Friday morning as winds increase.
18z NAM-WRF model
Temperature forecast valid from 9 PM tonight to 7 PM Friday.
Much colder temperatures will push SE across the Northland from late tonight thru Friday. Note: Temperatures in Duluth will drop from around 30 degrees at 9 PM tonight to the mid teens to around 20 degrees by 7 AM Friday, and to the single digits by late Friday afternoon.
Goes-16 water vapor satellite loop from Thursday, December 27, 2018
An amazing view of today’s storm per water vapor satellite imagery!
1: The steady stream of deep gulf moisture NE of the low today.
2: Now we’re seeing the deformation snow band setup across central to northeast Minnesota into far northwest Wisconsin or to the N-NW of the surface low while the stream of deep gulf moisture pushes off to the east this evening.
Links to Road Conditions
Wisconsin — https://511wi.gov/map#:Alerts
Forecast for Duluth and Superior
…Winter Storm Warning till 9 AM Friday…
-Snow continues into early Friday morning with an additional 2 to 4 inches of accumulation possible. Storm totals of 8 to 12 inches are expected, with the higher totals found on top of the hill. Localized amounts greater than 12 inches possible on the north side of Duluth.
-Flurries and light snow showers Friday morning with gusty north winds along with areas of blowing snow.
-Some sun expected on Friday, but it will be blustery and much colder