/Issued 5:11 PM CST, Monday, December 18, 2017/
**Here’s what I’m thinking for the mid to late week snow event**
-Snow moves into Duluth late Wednesday afternoon/evening, sometime in the 3 PM-6 PM time frame (Timing subject to change during the next 24 hours)
-Snow Wednesday night with some more snow for Thursday.
-East to northeast wind Wednesday night through Thursday morning turning more to the north-northeast Thursday afternoon. Note: Greatest chance for some lake enhanced/lake effect snow in Duluth will occur when the wind is out of the east/northeast, once the wind turns north/northeast that will end the chance for lake effect snow in Duluth.
-Right now I’m thinking the Twin Ports area will end up with around 4 inches of snow from Wednesday evening through Thursday (Locally higher amounts are possible)
Check out those temperatures from late this afternoon in southwest Minnesota, 40s and even a 50 degree reading on December 18, nice!
Note: There has been a southeast shift in the storm track for late this week per model guidance, this could mean that most of the snow we get in our local area comes late Wednesday through Thursday with the second wave of snow possibly staying south of our area from late Thursday into Friday. Stay tuned.
12z European computer model from Monday, December 18, 2017.
850mb temperature forecast valid from Sunday morning through Thursday morning, December 24-28, 2017. A bitterly cold airmass settles into the Northland this weekend and looks to persist into next week.
850mb temperatures are forecast to range from around -25 to as low as -35 degrees Celsius between December 24-28, this could result in daytime highs remaining below zero while overnight lows range from 15 below to as cold as 35 below zero! And yes wind chill temperatures will be even colder, 40 below or lower wind chills possible at times next week.
Low pressure was centered well north of Minnesota this afternoon with an occluded front attached to this low extending southwest into the northwest half of Minnesota — There’s been an area of snow which has been moderate to even heavy at times moving east impacting parts of northern Minnesota today, this area of snow has moved into northeast Minnesota and far northwest Wisconsin as of 4 PM. Highs today were generally in the low to mid 30s which is 10-15 degrees above average for the 18th of December.
Tonight: Snow will continue early this evening before ending from west to east by mid or late evening. Patchy freezing drizzle could also develop over parts of the Northland tonight. Mostly cloudy skies are expected with lows in the upper teens to middle 20s. Could be a tad breezy at times with westerly winds at 15 to 20 mph with gusts to 30 mph.
Tuesday: A cold front will push south and through the Northland while low pressure heads into the northern Rockies. Mainly dry weather on the way for Tuesday although a few stray snow flurries can’t be ruled out in spots. Highs will be in the lower 20s to around 30 degrees with lows ranging from around zero in northern Minnesota to around 20 degrees in far southern portions of the area. Gusty west/northwest winds are expected Tuesday at 15 to 30 mph.
Wednesday: Should see some snow develop or move into the western-southern portions of the area during the afternoon with snow possible over most areas Wednesday night. Low pressure is forecast to head out into the central Plains with high pressure to our north — An overrunning snow event is expected to develop Wednesday which will impact parts of the northern Plains and upper Midwest. Highs Wednesday will range from the lower teens to lower 20s.
Link to Road Conditions
Forecast for Duluth and Superior
.Tonight… Snow ending around 7 PM. Total snowfall accumulations around an inch or less. Mostly cloudy with patchy freezing drizzle possible. Low 23 to 27. Wind southwest becoming west at 10 to 20 mph with higher gusts possible.
.Tuesday… Breezy. Partly to mostly cloudy. High 27 to 30. Wind west to northwest at 15 to 25 mph.
.Wednesday… Increasing cloudiness. High 15 to 20. Wind becoming east at 5 to 15 mph.
Normal temperatures for Tuesday
Sunrise Tuesday: 7:50 AM CST
Sunset Tuesday: 4:22 PM CST