Weekend snowfall could reach 6 inches in southwest Minnesota; less for the metro

Snow is expected to begin in southwest Minnesota late Saturday night.
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Marshall, Mankato, Pipestone, Worthington, Albert Lea and surrounding areas of southwest and south-central Minnesota could wind up with some rather hefty snow totals from late Saturday night through Sunday. 

A winter weather advisory has been issued for the area where 4-6 inches, possibly isolated amounts of 6+ inches, are expected. 

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Snow totals will taper to the northeast of a line from Granite Falls to Mankato and Albert Lea, with anywhere from a dusting to 2 inches possible in the metro area. 

"Snowfall will develop in southwestern MN this evening and gradually spread east late tonight through Sunday, diminishing Sunday evening," the National Weather Service says. 

A typical snowstorm will have snow/liquid ratios of 10/1, meaning every one inch of liquid results in about 10 inches of snow. This system, according to the NWS, has a much higher ratio of around 18/1, meaning snow will pile up a little faster and lead to higher totals. 

Another storm system could bring snow to southern Minnesota in the Tuesday-Wednesday timeframe, but that's too far out to guarantee or lock down any details about how strong the system might be. 

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