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Winter Storm Update – 6:00 PM, Tuesday, February 17, 2026

A major winter storm is set to roll through the Northland from tonight into Thursday morning, with the worst conditions expected along the North Shore of Lake Superior in northeastern Minnesota.

I had to use the lime green color on my updated snowfall forecast, and I’m not sure I’ve ever used it before—or if I have, it’s definitely a rare occurrence.

…Here’s what I’m forecasting for snowfall totals through 7 AM Thursday…

Note: Snow totals in the Duluth area might end up on the lower side of that range if we get more of a wintry mix tonight.

…Ice Accumulation Forecast…

Areas of freezing rain could lead to ice accumulations ranging from a light glaze to 0.10 inches tonight into Wednesday morning over parts of northeast and east-central Minnesota and far northern Wisconsin.

Euro model simulated radar forecast through 6 AM Thursday.

Euro model wind gust forecast through 6 AM Thursday.

Note: Strong east to northeast winds in Duluth are expected to persist into early Wednesday evening before easing somewhat by Thursday morning.

…Winter Weather Headlines…

…Powerful winds across Lake Superior…

Storm and gale warnings are up for western Lake Superior tonight and Wednesday, with northeast winds blowing 45 to 55 knots. In ice-free spots, waves might climb as high as 7 to 10 feet.

The weather pattern is very active right now.

Goes-19 water vapor loop ending 5:15 PM CT Tuesday, February 17, 2026.

A deep low-pressure system near Sioux Falls, South Dakota, early this evening will slowly move northeast toward central Minnesota on Wednesday, then head east into northwest Wisconsin before weakening by early Thursday morning. At the same time, strong high pressure is centered near Hudson Bay, Canada. The tight pressure gradient between the low and high is creating very windy conditions, especially around Lake Superior tonight and into Wednesday.

Strong moisture transport continues to feed into the approaching low from the southwest tonight.

Powerful upper-level winds reaching up to 160 knots are surging northeast from the southwestern U.S. tonight, along the southeast side of the mid to upper-level trough.

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