/Issued 6:12 PM CST, Thursday, January 11, 2018/
Here we go again, more wind chill headlines in effect for the Northland. Could see some more of these at times through early next week.
Pretty easy to pick out where the arctic boundary was this afternoon – Very impressive temperature gradient today.
Forecast map for Sunday, January 14, 2018
Link to Road Conditions
Wisconsin – https://511wi.gov/map
Snowfall reports from January 10-11, 2018
Winton, MN 1 E: 9.0 inches
Ely, MN: 8.5 inches
Keewatin, MN: 8.5 inches
Soudan, MN 1 SW: 8.0 inches
Cook, MN 6 N: 8.0 inches
Winton, MN: 7.7 inches
Bigfork, MN: 6.5 inches
Ely, MN 25 E: 6.2 inches
Gile, WI: 5.8 inches
Grand Marais, MN 21 N: 5.0 inches
Cass Lake, MN: 4.5 inches
Willow River, MN: 4.0 inches
Cornucopia, WI 4.1 ENE: 3.5 inches
Isabella, MN 14 W: 3.5 inches
Mahtowa, MN 3 N: 3.5 inches
Park Falls, WI: 3.3. inches
Phillips, WI: 3.0 inches
Cloquet, MN 1 N: 3.0 inches
Two Harbors, MN 1 NW: 3.0 inches
Moose Lake, MN 1 S: 3.0 inches
Duluth Airport: 2.8 inches
Patzau, WI 6 ENE: 2.5 inches (Pattison Ranger Station)
Walker, MN: 2.5 inches
Brainerd, MN 3 N: 2.3 inches
Holyoke, MN 2 ENE: 1.6 inches
Record warm LOW temperature at Duluth, Minnesota on January 10, 2018.
New record: 32 degrees
Old record: 30 degrees set on January 10, 1928
A snowy day across most of the Northland as arctic air returns! A broad mid/upper level trough stretched north to south from the upper Midwest to southern Plains with several waves of low pressure riding NE along an arctic front which extended from eastern Lake Superior to east Texas.
Snow last night impacted northern portions of Minnesota with heavy snowfall amounts in the 5-9 inch range reported in a few locations, and about 2 to 4 inches of snow outside of the heavier snow band.
Today, the bulk of the snow fell from eastern to northeast Minnesota into northwest Wisconsin and these areas have picked up generally 2 to 4 inches of snow today.
Wind was a big problem across the area today with northwest winds of 15 to 35 mph which produced considerable blowing and drifting snow along with very poor visibility at times.
The temperature drop was also very impressive today, for instance, the temperature at the Duluth Airport was 32 degrees at Midnight, at 7 AM the temperature was at 17 degrees, and at 3 PM today, 2 degrees! The sharp drop in temperatures resulted in flash freeze conditions occurring on roads and sidewalks in parts of the Northland this morning.
Note: Overall I think the forecast verified nicely. This was a very difficult system to forecast due in part to numerous but rather small bands of moderate to heavy snowfall that developed while affecting different parts of the Northland. These heavier bands of snow developed due to strong F-GEN forcing, and if said bands lingered or kept developing in one particular area for a period of several hours, then snowfall totals got into the 6 to 9 inch range, this was especially true over portions of northern Minnesota (Iron Range vicinity) This was well forecasted as northern Minnesota was one area that was in the 3-6 inch snowfall zone, and I did point out in my post Wednesday evening that a few spots within that 3-6 inch zone could pick up more than 6 inches of snow. For the immediate Duluth-Superior area, my forecast was for 1 to 3 inches of snow, the actual amount ended up on the high end of that range due to a few bursts of heavier snowfall today which accumulated rapidly, I was a little surprised that Duluth got as much snow as they did with today’s event, seems to always be a surprise or two in every snow event.
Tonight: Bitterly cold temperatures return as snow gradually ends in northwest Wisconsin and along the North Shore of Lake Superior. Roads will remain snow covered and slick tonight, and areas of blowing snow will continue even after the snow ends. Partly to mostly cloudy skies are expected tonight with lows in the single digits, teens and 20s below with a few spots up north possibly in the 30s below.
Friday: Very cold but there should be a lot of sunshine tomorrow. Highs will be in the single digits below to single digits above zero with lows Friday night in the teens and 20s below with 30s below possible once again in the typical cold spots.
Note: Arctic high pressure will build southeast out of southern Saskatchewan Province through Saturday, it will move off to our south/east by Saturday night. Our next snow system could be coming on Sunday as a clipper type system drops southeast out of Canada – Depending on the track of this system it could drop around 1 to 3 inches of fluffy snow in parts of the Northland.
Forecast for Duluth and Superior
Event: *Wind Chill Advisory*
Timing: Until Noon CST Friday
Event: *Winter Weather Advisory for Superior*
Timing: Until 9 PM CST Tonight
.Tonight… Frigid. Partly to mostly cloudy. Lingering snow showers and flurries this evening in Superior with additional snowfall accumulations around an inch. Low 14 below to 19 below. Wind north to northwest at 10 to 20 mph. Areas of blowing snow. Wind chills 20 below to around 40 below.
.Friday… Very cold. Mostly sunny. High 3 below to 2 above zero. Wind northwest at 10 to 20 mph. Morning wind chills 20 below to around 40 below.
.Saturday… Very cold. Mostly sunny. High 2 below to 3 above zero. Wind west at 10 to 15 mph.
Normal temperatures for Friday
Sunrise Friday: 7:51 AM CST
Sunset Friday: 4:44 PM CST