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Sunday morning weather update; Winter Storm Warnings and Advisories in effect for most of the Northland tonight and Monday

-Winter Storm Warning (pink) in effect from Midnight tonight through Monday evening for the South Shore of Lake Superior in northwest Wisconsin including the cities of Superior, Solon Springs, Port Wing, Washburn, Bayfield, Ashland, Hurley and Gile.

-Winter Weather Advisory (purple) in effect from late this evening through Monday afternoon for southern portions of northwest Wisconsin, and for parts of northeast, north-central and east-central Minnesota including the cities of Grantsburg, Minong, Shell Lake, Spooner, Hayward, Grand Marais, Isabella, Silver Bay, Two Harbors, Hibbing, Duluth, Cloquet, Hinckley, Aitkin, Hill City, Grand Rapids, Brainerd and Walker.

-Expect difficult travel conditions from late tonight through Monday afternoon in the warning and advisory areas with accumulating snow and areas of blowing snow. The potential for blowing snow is greatest near Lake Superior, especially along the South Shore where north winds could gust to around 25 mph.

-Plan for snow covered and slippery road conditions and reduced visibilities for the Monday morning commute.

Note: There is a chance that portions of the advisory in northeast and east-central Minnesota are upgraded to a winter storm warning by later today.

Here’s my updated snowfall forecast for tonight’s event.

I’ve increased snow amounts and shifted the gradients around compared to my forecast from Saturday evening, and additional changes to my forecast are possible later today.

*Highest snow totals are expected along the South Shore of Lake Superior where some lake enhancement is expected with N-NE winds. Snow totals of 9 to 12 inches are possible near and slightly east of Superior to Port Wing, Washburn, Bayfield and Ashland.

*A widespread swath of around 5 to 9 inches of snow for Silver Bay, Two Harbors, Duluth, Moose Lake, Sandstone, Aitkin, Brainerd, Walker, Hill City, Grand Rapids and Hibbing.

*3 to 5 inches of snow farther north for Bigfork, Cook, Ely and Grand Marais.

*1 to 3 inches of snow near the Borderland, including Littlefork and International Falls.

Note: There is a chance that precipitation begins as freezing drizzle this evening in parts of eastern Minnesota and northwest Wisconsin with a light glaze of ice possible in those areas.

Outlook for Duluth and Superior

*Winter Storm Warning for Superior from Midnight tonight to 6 PM Monday*

*Winter Weather Advisory for Duluth from 9 PM this evening to Noon Monday*

Today should be dry in the Twin Ports.

Light snow or snow showers are possible this evening along with a chance for patchy light freezing drizzle.

Snow increases overnight with the bulk of the heavier snow occurring from roughly Midnight to 10 AM Monday.

Snow tapers off Monday afternoon.

Total storm accumulations of 5 to 9 inches are possible in Duluth and Superior.

Winds tonight into Monday morning out of the north to northeast at 10 to 20 mph with gusts to 25 mph with areas of blowing snow possible.

Thanks for reading!

Tim

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