Sweaty days ahead as 'prolonged heat wave' set to impact Minnesota

Storms are also possible Friday in southern Minnesota.
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Mother Nature will do Minnesotans no favors beginning Friday as a lengthy blast of heat and humidity is set to swallow the Upper Midwest. 

Highs in the upper 80s and 90s with tropical humidity will make it feel like it's about 100 degrees multiple days over the extended forecast period. There's a chance that clusters of storms help keep temperatures down some of the days, but there's little doubt that the heat will be on for the next couple of weeks. 

"A shift in the weather pattern is around the corner, with a warmer and more humid weather pattern setting up to last much of the rest of the month," says the National Weather Service in the Twin Cities. "Periodic chances for showers and thunderstorms will accompany the hot and humid airmass."

Today is going to be breezy and cooler with spotty showers. Thursday is going to be perfect with calmer winds and a high near 80. Then a "prolonged heat wave" sets in Friday. 


Several days with temps in the 90s are possible next week, and if a tropical system set to impact the Gulf Coast this weekend tracks into the Lower Great Lakes area, it could keep us in a bubble of 90-degree heat through most of next week, the NWS Twin Cities notes. 

The hot temps are one thing, but the high humidity with dewpoints surging into the 70s will make it feel oppressive outside. If you ever wanted a signal for sweat, the GFS model (GIF may not load in all browsers) is it as it shows dewpoints in the 70s to near 80(!) Friday through Friday. 


Another thing to keep an eye on is the potential for strong storms on Friday across southern Minnesota and western Wisconsin. At this point, the main severe modes would be for large hail and damaging winds. 

The Storm Prediction Center currently has southern Minnesota in a marginal risk for severe weather Friday. 

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Bookmark the Weather MN blog and check back for updates. 

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