A big winter storm is cranking up across the Plains and Midwest today and is forecast to move across the Mississippi and Tennessee River valleys on Saturday. 

BETTY WHITE-OUT? MICHIGAN NAMES SNOWPLOW AFTER LEGENDARY ACTRESS

Southeast futuretrack

Southeast futuretrack (Credit: Fox News)

Depending on where you live and the air temperature as the storm moves in, there is the possibility for a variety of precipitation: from rain to freezing rain, ice and the potential for snow.  

Eastern ice potential

Eastern ice potential (Credit: Fox News)

Heavy snow can be expected for the Appalachians, an icy mix for the Carolinas and what looks like an "all snow" event for the interior Northeast and New England.  

Eastern snow potential

Eastern snow potential (Credit: Fox News)

Where the coastal storm sets up could mean the difference between rain to a wintry mix and the potential for all snow for the big cities along the I-95 corridor.  

Northeast freeze

Northeast freeze (Credit: Fox News)

Bitter cold air will then settle in behind the system for the Northeast. 

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Meanwhile, in other weather news, an area of low pressure off the West Coast will bring rain to Southern California on Saturday.