Here's my snowfall forecast for late tonight into early Friday morning. Precipitation will likely begin as rain this evening before changing over to wet snow later this evening and through the overnight hours. Note: The greatest snowfall is expected to remain north of Duluth and Superior but it should be noted that there are a few computer models that bring the 2-5" swath of snow slightly farther south affecting the Twin Ports.
Tonight's low temperature forecast. Source: https://graphical.weather.gov
Friday's high temperature forecast. Source: https://graphical.weather.gov
March 1-15, 2017 temperature departure map. Source: http://mrcc.isws.illinois.edu
March 1-15, 2017 precipitation departure map. Source: http://mrcc.isws.illinois.edu
March 1-15 climate stats for Duluth, Minnesota
Average temperature: 18.0 degrees
Departure: -4.8 degrees below normal
Total precipitation: 0.31"
Departure: -0.36" below normal
Total snowfall: 1.3"
Departure: -6.3" below normal
3 days with a high temperature of at least 40 F
1 day with a high temperature of at least 50 F
4 subzero nights
Weather Synopsis for northeast Minnesota and northwest Wisconsin
A pretty nice day with high temperatures in the low to mid 40s except for 30s closer to Lake Superior. Clouds have been increasing albeit slowly across the Northland this afternoon as low pressure heads into the northern Plains.
It's going to turn a little messy in our area tonight and early Friday morning. Low pressure along with a cold front will track east out of the northern Plains, passing through the upper Midwest late tonight-Friday morning, then exiting to the east Friday afternoon.
This system will bring a variety of precipitation types to the Northland tonight into early Friday morning. Expect rain, wet snow, freezing rain and possibly even some sleet. Temperatures aloft are forecast to hover between -1 and -3 C while surface temperatures fall into the low 30s by late tonight, with these mild temperatures in place the snow that does fall will likely be the wet/slushy kind. Note: Precipitation will likely taper off after midnight especially south of Highway 2 in east central Minnesota into northwest Wisconsin but areas of drizzle could develop in these areas as the steadier precipitation pulls away early Friday morning.
Expect scattered rain and snow showers on Friday as cold air aloft moves over the Northland.
Lows tonight will be in the upper 20s to lower 30s with highs Friday in the upper 30s to low/mid 40s.
Forecast for Duluth and Superior
.Tonight... Rain, sleet or wet snow developing between 8-10 PM. Wet snow or mixed precipitation after midnight. Total snowfall of 1 to 2 inches possible. Low 30 to 33. Wind east to southeast at 10 to 20 mph.
.Friday... Breezy. Considerable cloudiness with scattered rain and snow showers. High 37 to 42. Wind becoming west to southwest at 15 to 25 mph.
Normal temperatures for Friday
Sunrise Friday: 7:17 AM CDT
Sunset Friday: 7:17 PM CDT