An arctic air mass has overtaken the Great Lakes region. The air is more than cold enough to produce lake-effect snow. Lake-effect snow will continue to hammer the Great Lakes region through Friday thanks to an arctic air mass that has invaded the Lower-48 states. Snowfall rates of two inches per hour were reported with a lake-effect snow band east of Lake Erie in Warsaw, New York, late Thursday morning. Four inches of snow was reported in one hour early Thursday afternoon to the southeast of Lake Erie in Perrysburg, New York. More than 17 inches was reported there. 11.5 inches has fallen in East Concord, New York, which is south-southeast of Buffalo.
In Michigan, more than 10 inches of snow fell in Painesdale in a 24 hour span ending Thursday afternoon. Lake-effect snow may have been a contributing factor to a deadly multi-car pileup on I-96 in Lower Michigan on Thursday. Various lake-effect snow warnings, winter storm warnings and advisories have been posted by the National Weather Service in the typical areas that are prone to lake-effect snow, from Upper Michigan to western Lower Michigan. Due to the extremely localized nature of lake-effect snow, some places could pick up 1 to 3 inches of snow in an hour or less, while just 10 miles away there may only be flurries and some breaks of sun. 
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