Wintry mix spreads across Minnesota

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Get ready for another free sauna Minnesota.

Another hot front blows in on southerly winds Friday. This one may not be quite as hot as last weekend’s heatwave that drove heat index values to 113 in Orono and 116 in St. Peter. But heat index values will top 100 degrees again. 

The National Oceanic and Atmospheric Administration’s North American Mesoscale model drives heat index values over 100 degrees again Friday afternoon across much of Minnesota.

The Twin Cities National Weather Service office has issued yet another 

NOAA’s Global Forecast System model did a pretty good job of gauging high dew point values last weekend. The GFS shows the tropical moisture pump right over Minnesota again this weekend. 

Check out the plume of high dew points in the upper 70s to near 80 degrees Friday through Sunday.

Last weekend marks the second consecutive year we’ve recorded 80-degree dew points in the Twin Cities 

Looking at the records I believe this is the first time on record we’ve logged ultra sweaty 80-degree dew points in consecutive years.

 from the Minnesota DNR Climate Working Group. (Data below through 2018)

Weather and Climate News

Updraft® - Minnesota Weather News

Paul Huttner

Author

Another tropical air mass blows into Minnesota this weekend. That brings the potential for 80-degree dew points and thunderstorms.

Twin Cities National Weather Service

NOAA NAM model forecast heat index for 4 pm Friday

NOAA via tropical tidbits

NOAA NAM 3 km model dew point output Friday through Sunday

Excessive heat warning: Rare 80-degree dew points again this weekend?

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