Cooler but still well above normal this week

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We’re getting the full summer weather smorgasbord just in time for the summer solstice which occurs at 9:42 p.m. CDT Friday night.

A tropical warm front will spawn another round of nocturnal thunderstorms across parts of central and northern Minnesota overnight into early Saturday morning.

The National Oceanic and Atmospheric Administration Storm Prediction Center has posted an enhanced (level 3 of 5) risk zone for most of northern Minnesota overnight through 7 a.m. Saturday morning.

NOAA’s High-Resolution Rapid Refresh model run Friday afternoon shows a line of storms popping along the warm front Friday evening and racing across northern Minnesota. The forecast model loop below runs between 8 p.m. Friday and 7 a.m. Saturday. 

Note the possible bow echo-like signature crossing northern Minnesota in the wee hours Saturday morning. If this develops, the potential for damaging winds increases. 

This weekend brings the hottest, most humid air mass of the year so far into Minnesota. An 

 is in effect for most of central and southern Minnesota this weekend. 

Highs Saturday will approach 95 to 100 degrees across much of southern Minnesota. Heat index values will exceed 100 degrees Saturday. Cooler near your favorite Great Lake.

Sunday will be just about as steamy. Dew point this weekend could reach 80 degrees around southern Minnesota including the Twin Cities area. It’s almost impossible for your body to keep cool in that kind of tropical air mass. 

NOAA’s FV3 model shows the deep tropical moisture plume pulsing over Minnesota this weekend:

Thankfully, this is only about a two-day heat episode for Minnesota. A cold front arrives by Monday with rain chances and much cooler temperatures and lower humidity.

Stay cool and classy out there this weekend, Minnesota!

Weather and Climate News

Updraft® - Minnesota Weather News

Paul Huttner

Author

A tropical warm front will trigger severe storms across much of northern Minnesota overnight. Extreme heat warnings are up for the weekend.

Severe risk north overnight; extreme heat warning this weekend

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