Accumulating snow Friday favors eastern Twin Cites and Wisconsin
Forecasts favor lighter snow west; snow could be heavy in Wisconsin
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Friday brings another interesting weather system to Minnesota and Wisconsin. A low-pressure system passing south of Minnesota will push moisture north into our region.
The system will be moisture starved as it moves into western Minnesota early Friday, but a feed of moisture will inject into the system as it crosses eastern Minnesota. When that moisture feed arrives will determine how much snow we get across the Twin Cities and eastern Minnesota.
The National Oceanic and Atmospheric Administration’s NAM 3 km model is typical of the majority of forecast solutions that develop snow across Minnesota around the midday hours Friday.
On the map below, note how the heaviest snows on this model favors areas east of the Twin Cities into Wisconsin. The forecast model loop below runs between 9 a.m. Friday and 6 a.m. Saturday.
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Most forecast snowfall solutions show snow totals increasing from west to east right across the greater Twin Cities areas.
The majority of models paint a picture similar to the latest NOAA guidance here favoring a range of around 1 to 3 inches across the greater Twin Cities from west to east.
Some develop snow later and produce little accumulation int he Twin Cities especially the western half.
On the other hand, NOAA’s Global Forecast System is on the boom side of snowfall forecasts for the Twin Cities and eastern Minnesota. It injects moisture into the system much quicker, and the result is a pile of snow from around the Twin Cities eastward into Wisconsin.
Temperatures Friday will be a bit milder than we have felt this week.
Let’s see what tonight’s forecast model runs do
Stay tuned.