WATCH: Noreaster turns deadly

WATCH: Noreaster turns deadly

Transcript for Noreaster turns deadly

And we begin with the treacherous drive home tonight, as this nor’easter hits several states now, from the Carolinas all the way up into the northeast. Slamming the I-95 car door for the evening rush. This SUV trying to get traction on a St. Louis highway. A car there at the left driving on a slippery onramp, slipping out onto the median. And authorities in Maryland have just said they’ve had more than 300 car crashes in their state alone. All traffic stopped on the George Washington bridge here in New York City late today. And more than 6,000 flights have been delayed or canceled already. Take a look. The storm sweeping up from the south, the heavy snow and ice moving up into Philadelphia, new York City and Boston. Meteorologist rob Marciano leading us off. Reporter: Tonight, a white knuckle ride for drivers as a deadly winter storm wreaks havoc across nearly half the country. The storm hitting New York City at the height of the evening commute. Watch out! Watch out! Watch out! Reporter: Multiple cars crashing on the George Washington bridge. We’ve been stuck on the road now for hours. And just take a look. That is the George Washington bridge into New York City. No car is moving. For much of the northeast, it’s a traffic nightmare. Reporter: Washington, D.C., blanketed early in snow. In Maryland, state police responding to more than 300 crashes in just six hours. In the St. Louis area, cars fishtailing, even spinning out of control on the slick streets. Up to nearly ten inches of snow keeping plows busy on the roads, and de-icers busy at the airport. More than 1,300 flights cancelled and more than 5,600 others delayed across the country in the storm’s wake. Hundreds of thousands losing power across the storm zone. Snowy, icy roads to blame for multiple crashes and at least four deaths in Arkansas. And in Mississippi, two people killed Wednesday when this tour bus, on its way to a casino, overturned. So, let’s get to rob Marciano, he’s live in New York City tonight. He has the latest track for us. Hey, rob. Reporter: Hey, David. I got to tell you, it’s rare to see snow-covered streets in Manhattan, the earliest snow in 30 years. Let’s get to the radar right now. The low is over the delmarva, and the snow shield is spreading north. Parts of Pennsylvania, already over eight inches. This will traverse the coast as a nor’easter tonight. The snow along I-95 will change to rain briefly. This wind will increase, as well, and then changing back to snow. So, not only a horrific commute tonight, but a horrific commute in the morning. Clearing out in the afternoon, and colder air. An additional one to three inches on the shoreline. Upstate New York could see over seven inches of snow. What a November snow event. Rob, thank you.

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

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