Wintry mix spreads across Minnesota

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Another slowly moving moisture-rich low-pressure system tracks through the Upper Midwest through Friday.

This system has all the ingredients to produce widespread 

 (horizontal) rain across our region. These longer-duration soaking rain systems are precisely the type of weather systems we need to crawl our way out of drought.

Thursday’s U.S. Drought Monitor update for Minnesota shows continued gradual improvement. 

Much of northeastern Minnesota was removed from drought this week. Note the area between Duluth, Two Harbors, Silver Bay, and much of St. Louis County to the north. Also, note that Washington County in the eastern Twin Cities is no longer in a drought zone.

The weather maps continue to track a slowly moving soggy low-pressure system through Iowa Friday. That will pump waves of moderate to heavier rainfall across southern Minnesota. The heaviest rains will fall overnight into Friday midday.

I like the looks of the National Oceanic and Atmospheric Administration’s FV3 model and the way it handles embedded heavier rain cells within the overall rain shield. The forecast model loop below runs between 4 p.m. Thursday and 7 a.m. Saturday.

The forecast models I trust the most continue to lay our widespread soaking multi-inch rainfall totals across central and southern Minnesota through Friday.

A widespread area of 1 to 3 inches looks almost certain. Locally some areas could see 3 to 4 inches. The best chance for 4 inches of rain favors southwest Minnesota. 

Here’s NOAA’s Global Forecast System model rainfall output through Saturday: 

And here’s the European Centre for Medium-Range Weather Forecasts model:

This magnitude and distribution of this rain should help knock back drought another category or so in much of the rain zone for next week’s drought monitor update.

Weather and Climate News

Updraft® - Minnesota Weather News

Paul Huttner

Author

A soggy weather system brings significant rain through Friday. 

Twin Cities National Weather Service office

National Drought Mitigation Center, NOAA,USDA

NOAA via tropical tidbits

NOAA via pivotal weather 

Environment Canada via pivotal weather

European model (ECMWF) precipitation output

Drought-easing rains through Friday

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