Winter storm tracks across northern Minnesota Tuesday

Another subzero arctic air mass blows in Tuesday night for Minnesota.

Forecast snowfall totals
Forecast snowfall totals.
NWS Duluth

Minnesota’s next winter storm takes aim for the northeast.

A strong low-pressure system will track unusually far north for this time of year. That puts the heavy snow zone across southern Canada and northeast Minnesota Tuesday.

A winter storm watch is posted for northeast Minnesota Tuesday.

Northern Cook and Lake-Southern Lake- Including the cities of Isabella, Two Harbors, and Silver Bay

249 AM CST Mon Jan 17 2022


* WHAT...Heavy snow possible. Total snow accumulations of 4 to 7 inches possible. Winds could gust as high as 35 mph.

* WHERE...Northern Cook and Lake and Southern Lake Counties.

* WHEN...From Tuesday morning through Tuesday evening. * IMPACTS...Travel could be very difficult. Patchy blowing snow could significantly reduce visibility. The hazardous conditions could impact the Tuesday evening commute.

The system

A strong Alberta Clipper tracks from southern Alberta Monday through northern Minnesota Tuesday. Snow typically occurs along and north of the low-pressure center track with these systems. Snow will develop across northwest Minnesota overnight, then spread quickly across northeast Minnesota Tuesday.

NOAA GFS model Tuesday
NOAA GFS model between midnight and 6 pm Tuesday.
NOAA via tropical tidbits

Snowfall totals

I like the looks of the Canadian model for snowfall totals across northern Minnesota Tuesday. A zone of 2 to 5 inches or so north of a Hallock to Duluth line looks reasonable. Snowfall totals will increase northward toward the Canadian border, where 5 to 10 inches is likely by late Tuesday.

Canadian model snowfall output
Canadian model snowfall output by Wednesday morning.
Environment Canada via pivotal weather

Winds off of Lake Superior slamming into the higher terrain along the North Shore will produce lake-enhanced snowfall totals. Expect higher snowfall totals in the hills above Tofte through Grand Marais and Grand Portage.

Forecast snowfall totals
Forecast snowfall totals.
NWS Duluth

Arctic air arrives Tuesday night

Gusty northwest winds behind the storm will bring another shot of bitter arctic air to all of Minnesota starting Tuesday night. Temperatures will reach subzero values across most of Minnesota Wednesday morning.

Forecast low temperatures Wednesday
Forecast low temperatures Wednesday morning.

By Thursday morning the Twin Cities will see double-digit subzero readings, with negative 30s again up north.

Forecast minimum temps Thursday
Forecast minimum temps Thursday.
NOAA via pivotal weather

Highs will moderate into the 20s again next weekend.

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