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Wisconsin Weather

DEC 23, 2020 | Minneapolis MN Blizzard; Heavy Snow Far Northern WI

LAST UPDATE : DEC 26, 2020

WEDS 12/23 - 2:45pm CT

Facebook live video discussing the latest on the storm.

WED 12/23 - 8:51am CT

Increased snow total forecast in northwest WI as recent snowier model trend continues. Blizzard like conditions along WI/MN border tonight. Next update around noon.

TUE DEC 22 - 9:53pm CT

Watching this system for several days but haven't felt the need to post a forecast. A few recent runs - including most of the 12z & 00z short range guidance - warrants a closer look for snow accumulation potential in NW Wisconsin. For Wisconsin as a whole, a chance for rain/snow showers between WEDS & early THU AM with little accumulation - except NW WI.

Big picture - Strengthening low pressure system associated with large scale deepening upper level trough will lead to organization & intensification of a comma head of snow across far NW Wisconsin. Given the somewhat dynamic nature of the system, it wouldn't surprise me to see several inches of snow (perhaps near 12" locally) in the vicinity of a line from Minneapolis to Duluth MN.

Recent trends have trended colder w/ more snow for NW WI, especially short range models. Instead of 1-3", more 2-4" or 3-5" amts. This is at odds with several days of warmer & further west progs from the GFS/EC. Didn't want to act too aggressively w/ this system. With likelihood of dry slot pulling into the backside of the low in western WI. Always seems to lower totals near to the low track.

Additionally, wind gusts will be on the increase Wednesday night...increasing from south to north across Wisconsin into the 30-40 MPH range. Given that NW WI will be under the surface low track...weaker/calm winds will occur for much of WED.

A cold front will sweep through for Thursday, coldest air of the season thus far with single digits likely (colder NW WI with fresh snow). Windchills will dip below zero Thursday morning.

THU AM - Wind chills expected to reach -10 to -20F range in Wisconsin on Thursday morning (colder NW). -20 to -30F in Minnesota.
THU AM - Wind chills expected to reach -10 to -20F range in Wisconsin on Thursday morning (colder NW). -20 to -30F in Minnesota.

I'll check back tomorrow afternoon and post an update if needed. Thanks. -JP


8:56PM CT - Working on forecast. Check back later. Thanks.

Forecast Maps

Snow


Wind Gust

Wind Gust (MPH)
<20 MPH
20-30 MPH
30-40 MPH
40-50 MPH
50-60 MPH
60+ MPH

Verification


Storm Details

Hazards
Winter Storm
Start
WED 10:00 AM - Dec 23, 2020
End
THU 12:00 PM - Dec 24, 2020
Confidence Level
Storm Class

Comments

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Posts

Watching a possible storm for TUE/WED next week. It's persisted on many runs now GFS & EC and could be significant if it actually happens. Still several days away and much could change. I'll take a closer look after Christmas. Happy holidays!
Calm before the storm. Snow will develop quickly today across eastern MN/NW WI.
THU AM - Wind chills expected to reach -10 to -20F range in Wisconsin on Thursday morning (colder NW). -20 to -30F in Minnesota.

Archives

December 23, 2020

24HR Radar Loop
24HR Radar Loop
Snow Accumulation 24Hr
Wind Gusts
Storm Reports

December 24, 2020

24HR Radar Loop
24HR Radar Loop
Snow Accumulation 24Hr
Wind Gusts
Storm Reports

Storm Reports

WIND GUSTS (1)
NON-TSTM WND GST
NON-TSTM WND GST
2 NNE FRENCH ISLAND, WI
58 MPH
SNOW (100)
SNOW
SNOW
GILE, WI
16.0"
HEAVY SNOW
HEAVY SNOW
4 SSE HERBSTER, WI
11.5"
SNOW
SNOW
5 W WASHBURN, WI
10.0"
SNOW
SNOW
3 W BAYFIELD, WI
9.0"
SNOW
SNOW
2 NNW MELLEN, WI
8.8"
SNOW
SNOW
1 S RIVER FALLS, WI
8.5"
SNOW
SNOW
1 SSW RIVER FALLS, WI
8.5"
SNOW
SNOW
1 S ST. CROIX FALLS, WI
8.0"
SNOW
SNOW
1 NNW LAKE NEBAGAMON, WI
8.0"
SNOW
SNOW
2 WNW WASHBURN, WI
8.0"
SNOW
SNOW
3 N AMNICON FALLS S.P., WI
8.0"
HEAVY SNOW
HEAVY SNOW
3 SSE SOUTH RANGE, WI
8.0"
SNOW
SNOW
4 SSE HERBSTER, WI
8.0"
SNOW
SNOW
6 SE OLIVER, WI
8.0"
SNOW
SNOW
1 N CUMBERLAND, WI
7.5"
SNOW
SNOW
BENNETT, WI
7.0"
SNOW
SNOW
5 SW NYE, WI
7.0"
SNOW
SNOW
5 E MELLEN, WI
7.0"
SNOW
SNOW
DELTA, WI
7.0"
SNOW
SNOW
SARONA, WI
7.0"
SNOW
SNOW
CUMBERLAND, WI
6.5"
SNOW
SNOW
1 WSW BALDWIN, WI
6.0"
SNOW
SNOW
4 NNW NEW POST, WI
5.8"
SNOW
SNOW
2 WNW SPOONER, WI
5.7"
SNOW
SNOW
1 SSW ROBERTS, WI
5.6"
SNOW
SNOW
4 WSW NORTHWOODS BEACH, WI
5.5"
SNOW
SNOW
1 SE HUDSON, WI
5.3"
SNOW
SNOW
1 S CORNUCOPIA, WI
5.2"
SNOW
SNOW
2 W HAYWARD, WI
5.0"
SNOW
SNOW
BLUEBERRY, WI
5.0"
SNOW
SNOW
HERTEL, WI
5.0"
SNOW
SNOW
5 SSE BALSAM LAKE, WI
4.6"
SNOW
SNOW
3 E CLAYTON, WI
4.5"
SNOW
SNOW
3 NNE LITTLE ROUND LAKE, WI
4.0"
SNOW
SNOW
4 SSE WEBSTER, WI
4.0"
SNOW
SNOW
5 NE FREDERIC, WI
4.0"
SNOW
SNOW
SOLON SPRINGS, WI
4.0"
SNOW
SNOW
5 N HAYWARD, WI
3.5"
SNOW
SNOW
4 E HANNIBAL, WI
3.5"
SNOW
SNOW
1 E MENOMONIE, WI
3.2"
SNOW
SNOW
PRESQUE ISLE, WI
3.1"
SNOW
SNOW
2 SE CHETEK, WI
3.0"
SNOW
SNOW
3 ESE MENOMONIE, WI
2.7"
SNOW
SNOW
COLFAX, WI
2.5"
SNOW
SNOW
7 NNE HAMBURG, WI
2.4"
SNOW
SNOW
TOMAHAWK, WI
2.3"
SNOW
SNOW
7 NE TILDEN, WI
2.1"
SNOW
SNOW
3 N BOYCEVILLE, WI
2.0"
SNOW
SNOW
1 SW DURAND, WI
2.0"
SNOW
SNOW
1 SSE CHIPPEWA FALLS, WI
1.9"
SNOW
SNOW
1 WNW CHIPPEWA FALLS, WI
1.9"
SNOW
SNOW
1 ENE MEDFORD, WI
1.8"
SNOW
SNOW
3 NE STOCKHOLM, WI
1.8"
SNOW
SNOW
4 NE CHIPPEWA FALLS, WI
1.8"
SNOW
SNOW
3 SSW ALTOONA, WI
1.8"
SNOW
SNOW
3 WNW LADYSMITH, WI
1.6"
SNOW
SNOW
1 NW SAINT GERMAIN, WI
1.6"
SNOW
SNOW
1 ENE BRADLEY, WI
1.5"
SNOW
SNOW
1 ESE CHIPPEWA FALLS, WI
1.5"
SNOW
SNOW
1 SW SPARTA, WI
1.5"
SNOW
SNOW
1 SE WILLOW RESERVOIR, WI
1.5"
SNOW
SNOW
4 NE BAILEYS HARBOR, WI
1.5"
SNOW
SNOW
2 WNW EAU CLAIRE, WI
1.5"
SNOW
SNOW
RHINELANDER, WI
1.5"
SNOW
SNOW
WEST SALEM, WI
1.5"
SNOW
SNOW
EAGLE RIVER, WI
1.5"
SNOW
SNOW
NE WAUSAU, WI
1.5"
SNOW
SNOW
2 E LA CROSSE, WI
1.4"
SNOW
SNOW
2 NNE BLACK RIVER FALLS, WI
1.4"
SNOW
SNOW
1 WSW WEST SALEM, WI
1.4"
SNOW
SNOW
1 ESE OWEN, WI
1.4"
SNOW
SNOW
2 E BRUCE, WI
1.3"
SNOW
SNOW
2 W WOODRUFF, WI
1.3"
SNOW
SNOW
2 SSE HOLMEN, WI
1.3"
SNOW
SNOW
1 S RHINELANDER, WI
1.3"
SNOW
SNOW
2 WSW GALESVILLE, WI
1.3"
SNOW
SNOW
3 NW MATHER, WI
1.2"
SNOW
SNOW
WAUSAU, WI
1.2"
SNOW
SNOW
5 WSW WARRENS, WI
1.0"
SNOW
SNOW
3 NNW FRENCHVILLE, WI
1.0"
SNOW
SNOW
2 SW MELVINA, WI
1.0"
SNOW
SNOW
1 SSE MEDFORD, WI
1.0"
SNOW
SNOW
1 S TREMPEALEAU, WI
1.0"
SNOW
SNOW
1 S BLOOMER, WI
1.0"
SNOW
SNOW
1 NNW SPREAD EAGLE, WI
1.0"
SNOW
SNOW
1 NE FRENCH ISLAND, WI
0.9"
SNOW
SNOW
1 E VIROQUA, WI
0.8"
SNOW
SNOW
1 S DE SOTO, WI
0.8"
SNOW
SNOW
1 NNE FRENCH ISLAND, WI
0.6"
SNOW
SNOW
4 WNW KENDALL, WI
0.5"
SNOW
SNOW
ALMA, WI
0.5"
SNOW
SNOW
ASHWAUBENON, WI
0.5"
SNOW
SNOW
LA FARGE, WI
0.5"
SNOW
SNOW
APPLETON, WI
0.4"
SNOW
SNOW
1 WNW MOUNT ZION, WI
0.3"
SNOW
SNOW
1 WSW HILLSBORO, WI
0.2"
SNOW
SNOW
GENOA, WI
0.2"
SNOW
SNOW
EASTMAN, WI
0.1"
SNOW
SNOW
1 N MENOMONIE, WI
0.1"
Snow
SNOW
OSHKOSH, WI
T
OTHER (3)
NON-TSTM WND DMG
NON-TSTM WND DMG
1 NW SUPERIOR, WI
-
NON-TSTM WND DMG
NON-TSTM WND DMG
2 WSW SUPERIOR, WI
-
NON-TSTM WND DMG
NON-TSTM WND DMG
HOLMEN, WI
-