From ABC News Headquarters in New York City, this is GMA3.

We're going to start with the bitter cold as millions face another day of those frigid temperatures.

Wind chills below zero across the Midwest and the Northeast.

And it feels like the 20s as far south as Florida Ginger.

And the good news, I guess, if you love snow, there could be more of it for some.

Let's discuss because I want to start you out with a look at the Great Lakes.

They are so ice covered, especially Erie.

And if you remember, the last few winters, we've been saying, oh, there's barely any ice. Yeah. 94% covered on Lake Erie itself.

So really, and that will produce less lake effect snow too.

But with that Arctic blast, we are going to get even colder this weekend than we have been, if you can imagine.

And yes, that includes temperatures that could break records even into South Florida.

Miami could see not only their coldest air in 15 years. 27 on Saturday? With wind chills, yeah. So they could be in the 30s for actual temperatures, which is the coldest in 15 years, but close to the freezing mark, if they do that, it would be the first time since 1989 Christmas. So it doesn't happen often there. And then here's the storm. Let's talk briefly

about it. We feel like more confidence that the mid-Atlantic southeast will have some impacts

Friday night through Saturday. And the closer you are to the coast there in North Carolina and

Virginia will be watching. Maryland, Delaware, also a growing confidence that there be some impacts

definitely in waves and erosion. But there are two solutions that keep coming up on the models. One takes it more out to sea, which is less snow, and meaning no snow for Long Island or the Cape or New York or Boston. But if it gets closer and we'll be kind of making this more concrete in the coming days, then we get more snow. So let's talk tomorrow. All right, you've got to keep a watch on that then. We'll if we get more snow, Ginger. Now we go to new details on the surgeon accused of murdering his ex-wife and her husband. Prosecutors now say he was caught on video outside their Ohio home weeks before the killings. Chief investigative correspondent, Aaron Kutterski joins us now with more on this. Hey, Aaron, good afternoon. And good afternoon to you, Rian. And before her ex-husband allegedly murdered Monique

Tepe and her new husband, police say he threatened and stalked her.

New details about the murder of Monique and Spencer Teppi.

The state of Ohio versus Michael McKee. The man charged with killing the couple, her ex-husband

Michael McKee, was allegedly caught on surveillance camera lurking outside their Ohio home three weeks before the murders.

The couple was not there at the time, but attending the Big Ten championship game in Indiana.

Court records say McKee, who's a vascular surgeon, stayed in the yard for a few hours on December 6th, a day police said he was not on the schedule at his hospital.

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