/Issued 5:40 PM CST, Tuesday, January 10, 2017/
20z HRRR model.
Water vapor satellite loop of today's storm - Impressive stuff!
Today's storm deepened rapidly, had quite a bit of energy but was a fast mover -- Check out this map which shows lightning strikes from today's storm, an isolated strike of lightning as far north as near Green Bay, Wisconsin this afternoon! Source: https://www.lightningmaps.org
Tonight's low temperature forecast. Source: http://graphical.weather.gov/
Wednesday's high temperature forecast. Source: http://graphical.weather.gov/
Snowfall reports for January 10, 2017
Cornucopia, WI: 6.0"
Bayfield, WI 3 W: 5.0"
Beaver Bay, MN: 4.8"
Butternut, WI 2 E: 4.5"
Park Falls, WI: 4.0"
Duluth, MN 1 E: 4.0"
Payne, MN 3 E: 4.0"
Bruno, MN 3 SSW: 4.0"
Duluth, MN (Airport) 3.7"
Grand Marais, MN 21 N: 3.6"
Mahtowa, MN 3 N: 3.2"
Lakeside, WI 3 WSW: 3.1"
Two Harbors, MN 5 NW: 2.3"
Silver Bay, MN 11 NE: 2.0"
Iron Junction, MN 3 W: 1.5"
Link to Minnesota road conditions http://lb.511mn.org/mnlb/winterdriving/routeselect.jsf
Link to Wisconsin road conditions http://www.511wi.gov/web/traffic/winterroadconditions
Note: The third round of snow to hit the Northland since Sunday evening occurred today. This snow was caused by a few things, first a strengthening area of low pressure which tracked northeast out of Iowa while an arctic front moved east across the upper Midwest -- The combination of these two features resulted in widespread light to moderate snow across northeast Minnesota and northwest Wisconsin today with bands of heavy snow (Real big snowflakes) affecting parts of the area especially from mid-morning into the mid-afternoon hours. Snowfall totals from the reports I have seen this afternoon range from about 2 inches to 6 inches, not a huge snowstorm for our area but certainly enough snow to cause poor driving conditions due to snow and ice covered roads. Winds have been increasing this afternoon as cold air pours in behind the deepening low to our southeast. A wind shift to the NW has occurred with winds gusting to 20-30 mph. Areas of blowing snow have developed this afternoon, and this will continue to be a problem at least into the evening hours.
-Temperatures which were borderline 'balmy' into early afternoon (Teens, 20s to around 30 degrees) have dropped into the single digits as of 3 PM in north central Minnesota to the 20s in northwest Wisconsin and in far northeast Minnesota.
Low pressure over south central Wisconsin with a pressure of 988mb late this afternoon will lift quickly to the northeast, reaching the south shore of Hudson Bay Canada by daybreak while the low continues to deepen to around 979mb -- Light snow and flurries will be ending in the Northland this evening as this storm pulls away. Mostly cloudy to partly cloudy skies are forecast with lows ranging from the teens below in northern Minnesota to around zero in northwest Wisconsin. Gusty northwest winds will linger this evening which will lead to areas of blowing snow.
Another round of light snow is forecast to develop and affect parts of northeast Minnesota and northwest Wisconsin beginning after 2-3 AM tonight and lasting into the early afternoon hours of Wednesday. Low pressure will move E/SE out of the western High Plains with a brief warm air advection pattern spreading into the upper Midwest late tonight-Wednesday morning, this combined with some decent lift and a cold airmass in place should lead to some snow once again from late tonight into early Wednesday afternoon with high snow ratios in the 15:1 to 25:1 range expected (Similar to Sunday evening) Snow totals of 1" to 3" are forecast on Wednesday with the highest totals looking like they will setup in parts of northwest Wisconsin, possibly extending into portions of east central Minnesota.
Arctic air will move back into the Northland through Friday with the coldest low temperatures expected to occur Thursday morning and Friday morning with widespread teens, 20s and 30s below zero expected. Dangerously low wind chills are also likely Wednesday night-Thursday morning, and again Thursday night-Friday morning.
Forecast for Duluth and Superior
.Tonight... Breezy this evening with areas of blowing snow. Partly to mostly cloudy. Light snow possible again especially after 3 AM. Low 1 above to 4 below. Wind northwest at 15 to 30 mph decreasing to 10 to 15 mph and becoming west to southwest after midnight.
.Wednesday... Light snow especially before Noon. Total snowfall accumulation of around 1" possible. Mostly cloudy with some clearing during the afternoon. High 3 to 8. Wind west to northwest at 10 to 20 mph.
Normal temperatures for Wednesday
Sunrise Wednesday: 7:51 AM CST
Sunset Wednesday: 4:42 PM CST