We have very cold temperatures, dangerous temperatures, actually, in the nation. 19 stat the way, from north dakota, to north carolina, all the way into maine, have these advisories, these windchill... See More
We have very cold temperatures, dangerous temperatures, actually, in the nation. 19 stat the way, from north dakota, to north carolina, all the way into maine, have these advisories, these windchill advisories. Look at it. International falls at 38 below zero. That's the way it feels right now. Charleston, came up to one degree from zero. Pittsburgh, good morning. It feels like it's seven below morning. And new york, step outside. It feels like it's in the single digits. Here's this cold air. Some of the cold air will drop to the south. As it came in, it had enough punch with these winds and a little bit of snow, to snarl traffic and cause some big accidents, in just about one-quarter of the country. Take a look. Overnight, arctic air and blowing snow made for treacherous travel for the northeastern quarter of the nation. In ohio, three, major pileups. More than 150 cars, trucks and tractor-trailers, slamming into each other, in whiteout conditions. These cars just kept coming. We're sitting there, at the mercy of god. And it was just head-on. Arer this massive crash in cincinnati, 86 cars in all, left a 12-year-old girl dead. In cleveland, howling polar winds sent this 200-year-old tree crashing into a home. The same winds whipped up winds on lake erie. You can't see in front of you. You can't see the cars. Reporter: In pontiac, michigan, the roof of the silver dome was under renovation. This morning, it's in tatters. Bitter windchills in places like fargo, north dakota, again, reached 35 degrees below zero on monday. As the cold air is spreading south and east. I'm definitely ready for the sun. This cold air is in place. It came in with the strong winds. How far south does it go? Over the next 24 hours, we'll get as far south as atlanta. Frost and freeze warnings down in north florida, as well. A pocket of cold air that goes to the deep south and seems to
This transcript has been automatically generated and may not be 100% accurate.