Snow squalls are poised to blow through parts of the Midwest, Appalachians and the Atlantic coast as a fresh surge of Arctic air sweeps through the region.
AccuWeather meteorologists warn that the bursts of snow and sudden drop in visibility could lead to dangerous travel conditions, with a brief lake-effect event adding pockets of heavier snowfall.
Snow squalls are the wintertime equivalent of summertime downpours and thunderstorms, as some squalls have been known to produce lightning and thunder. Sometimes, the individual squalls organize into one or more solid lines of snow bursts.
Driving conditions can deteriorate within seconds to a couple of minutes, with visibility dropping to less than 100 feet as dry pavement rapidly becomes wet, then slushy, snow-covered or even icy.
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