Prompts winter weather advisories as cold air moves in Friday night

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It’s a clash of seasons across Minnesota Tuesday. A fall-like air mass in northern Minnesota will crash into a steamy summer heat wave in the south. 

The result? A steamy to stormy Tuesday ahead.

The southern half of Minnesota will feel like deep summer Tuesday. A sultry air mass with highs in the low 90s and dew points in the 70s will push heat index values to near 100 degrees Tuesday afternoon in the Twin Cities and southern Minnesota. 

A heat advisory has been issued for the Twin Cities Tuesday between noon and 8 p.m.

To the north, a frontal zone will spawn some nocturnal thunderstorms development overnight into Tuesday morning.

The storms will gradually develop further southward through the afternoon Tuesday. The best chances for storms in the Twin Cities arrives Tuesday evening after about 8 p.m. to 9 p.m.

NOAA’s FV3 model shows storms north early Tuesday and a possible (fading?) line of storms near the Twin Cities Tuesday evening. The forecast model loop below runs between 10 p.m. Wednesday and 10 p.m. Tuesday.

There is a slight risk for severe storms north of the Twin Cities Tuesday with a lower marginal risk zone across most of southern Minnesota. There’s also a slight risk for excessive rainfall north and west of the Twin Cities.

The MPCA has extended the air quality alert for northern Minnesota until 11 p.m. Tuesday for lingering wildfire smoke in the north.

Weather and Climate News

Updraft® - Minnesota Weather News

Paul Huttner

Author

Heat and humidity will drive heat index values to near 100 degrees Tuesday in the Twin Cities.

Hot and stormy Tuesday for much of Minnesota

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