Coldest air of the season arrives to the lower 48 states

The same system is bringing heavy rain and slick roads to the South, but in Philadelphia, temperatures are 20 degrees below normal.
2:33 | 11/09/19

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Transcript for Coldest air of the season arrives to the lower 48 states
We'll start with a major storm, and the second system that could bring in record cold right behind it. A dangerous fire in Wisconsin, firefighters battling the flames in single digit windchills. Freeze warnings, and what could be record cold right behind it. Here's Stephanie Ramos. Reporter: Tonight, behind that powerful storm that covered roads with more than half a foot of snow, the coldest air of the season is now pouring in to the lower 48 states. Current gusts in Philadelphia, 22 miles per hour. So it feels even colder when you factor that on in. Reporter: In the Philadelphia area, it feels more like January than November. Temperatures 20 degrees below normal. It's cold. I'm not ready for this. Too much, too cold, too fast. Reporter: In eau Claire, Wisconsin, a massive fire breaking out at this eye clinic Thursday evening. Single-digit windchills there making for some tough conditions for firefighters. We have been putting out salt and sand and things like that to try to keep the surfaces from being too slippery while we're trying to fight the fire. Reporter: That same system bringing heavy rain and slick roads to the south. In talladega county, Alabama, this vehicle ending up in the median of highway 280. Its front end smashed. Now they're bracing for their first freeze. Here in New York, it will feel like 19 degrees in the morning. Officials have declared a cold blue, opening up shelters for the homeless. And an even colder blast coming next week. Thank you. And let's get right to rob Marciano, from Atlanta. Where they're under a freeze warning as well. Reporter: That's right, this round of cold is nothing like what's to come. Freeze warnings from north Carolina to northeast Louisiana. It will feel like the teens, new York to Chicago. And a cold Saturday, then the next round, some snow preceding it. Mostly rain, we think, along I-95. But the next one will feel like below zero from Green Bay and Minneapolis, and the heaters are humming here in Atlanta. Rob, thank you. And we're also following

This transcript has been automatically generated and may not be 100% accurate.

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