/Issued 5:17 PM CST, Monday, January 15, 2018/
South Shore snowfall totals so far today per NWS Duluth, Minnesota
Oulu, WI 1 SE: 11.7 inches
Port Wing, WI 2 S: 7.5 inches
Amnicon Falls State Park, WI 3 N: 7.0 inches
Wentworth, WI 2 NNE: 6.5 inches
Herbster, WI 4 SSE: 5.0 inches
Note: The Advisory for Douglas County has been upgraded to a Winter Storm Warning. Lake effect snow will persist tonight along the South Shore of Lake Superior but the snow will begin to diminish later in the night into Tuesday morning.
Note: A heads up for late this weekend as a potential storm system could impact portions of the central Plains, upper Midwest and Great Lakes with possible snow and wind. Stay tuned as the storm track, and area with greatest snow potential becomes clearer in coming days.
It’s been a windy day across the Northland thanks to a tight pressure gradient between a 1024mb low over southeast Wisconsin and ~1052mb high building into the northern Plains.
Snow has been falling near Lake Superior with the heaviest snow occurring along the South Shore. The setup for lake effect snow today is a good one E/NE winds over the lake and northerly winds on land with strong convergence in place along the South Shore and over Lake Superior. There’s a 12-16 degree difference between lake water and 850mb temps, and there’s even some weak instability over Lake Superior today with Surface-Based CAPE ~50 j/kg late this afternoon per meso-analysis. This has generated heavier lake effect snow bands today which have affected northern portions of Douglas and Bayfield County.
High temperatures today ranged from the teens in northwest Wisconsin and near Lake Superior with single digits north central Minnesota.
Tonight: Breezy and cold. Lake effect snow for the South Shore which will be heavy at times especially this evening. Snow showers along the North Shore should come to an end this evening. Partly to mostly cloudy skies with lows in the teens and 20s below zero in north central Minnesota to the single digits below to single digits above zero over northwest Wisconsin.
Tuesday: Flurries and snow showers are still possible especially in the morning along the South Shore of Lake Superior otherwise mainly dry conditions under partly to mostly cloudy skies. Highs will range from around zero to the teens above zero with lows Tuesday night in the teens below to single digits above zero.
Note: We’re warming up mid to late week as another thaw sets up over the upper Midwest. Potential for daytime highs at or above the freezing mark for Thursday, Friday and Saturday. There is also a potential storm system which may or may not impact the Northland late this weekend, however, there is a great deal of uncertainty regarding the storm track.
Link to Road Conditions
Wisconsin – https://511wi.gov/map
Forecast for Duluth and Superior
Event: *Winter Storm Warning for Superior*
Timing: Until Midnight CST tonight
Event: *Wind Chill Advisory for Duluth*
Timing: Until 9 AM CST Tuesday
.Tonight… Windy with blowing snow. Snow showers and flurries this evening. Additional snowfall less than an inch. Heavier snow showers this evening mainly east of Superior with 3 to 6 inches of snow. Partly to mostly cloudy. Low 2 below to 7 below. Wind north to northwest at 10 to 20 mph with gusts to 30 mph. Wind chills 20 below to 30 below zero.
.Tuesday… Partly to mostly cloudy. High 7 to 12 above. Wind west to northwest at 10 to 20 mph. Morning wind chills 20 below to 30 below.
.Wednesday… Partly to mostly cloudy. High 20 to 25. Wind southwest at 10 to 20 mph.
Normal temperatures for Tuesday
Sunrise Tuesday: 7:49 AM CST
Sunset Tuesday: 4:49 PM CST