CNN 10｜Winter forecast, magic technology, young voters

COY WIRE, CNN 10 ANCHOR: What's up, sunshine? It's Thursday, October 17th. Happy Friday Eve. One more day until we rock into the weekend. I'm Coy Wire. This is CNN 10, where I tell you the what, letting you decide what to think.

Now, many of us are starting to see the fall come into full effect, so maybe cooler temperatures, maybe a changing of the leaves. But today, we're starting off with a look ahead to the winter because we're learning that this one might feel a lot different than the last few years. That's because a weak La Nina is expected to develop before winter and influence everything from temperatures, precipitation, even snowfall across the U.S.

What is La Nina? It's a natural climate pattern that influences global weather with cooler than average ocean temperatures coming from the equatorial Pacific. We see its effects the most during the winter months in the northern hemisphere. If last winter felt warmer than usual where you are, that may be because it was dominated by La Nina's counterpart, El Nino.

It was the warmest winter on record for the lower 48 in a world that's warming due to fossil fuel pollution. That winter warmth prevented many heavy snow events in the northeast and midwest, creating a winter snow drought that saw feet of missing snow. This winter, current forecasts are favoring a weaker La Nina, which means it'll have a less consistent impact on the weather because other weather patterns can influence it.

This winter, the Climate Prediction Center's forecast shows the jet stream, a river of air that storms flow through, shifting north this December through February, typical for La Nina winter. That shift moves stormy weather out of the south and into parts of the northern U.S. The northern part of the U.S. is expected to end up wetter than normal compared to last winter. The south, on the other hand, is looking at a drier than normal winter, which means drought conditions could worsen throughout the season. La Nina isn't here yet, but once it arrives, it'll stick around all winter and likely persist into early spring of next year.

Ten second trivia. In the U.S., how many electoral votes must a presidential candidate win in order to win the election? 300, 270, 538, or 200? The answer is 270. A majority of 270 electoral votes is required to elect the president. Over half of the electoral college is 538 electors.

JOHN KING, CNN CHIEF NATIONAL CORRESPONDENT: This is the 2020 map completely filled in, but on election night, it starts empty, and that is the real magic. The votes come in from state to state, county to county, and we count them. You probably wish you could have one of these at home.

Actually, you do. Take out your phone, take out your tablet, make sure you download our latest CNN app. Pop on in. Come down here. You'll see a little icon. Magic wall. You got your own. Tap on that. Think about election night. Starts off blank, right? So does my night. And that's the magic.

The results come in. You try to interpret them. Follow along with me. Pick it up at home and come through it. And if you're thinking, wait a minute, is that state the same as it was in 2020 or 2016? Well, you can find out.

All the states fill in red and blue. And then you think, I live in Pennsylvania, right? That's a battleground state. Maybe you live here. If you live here, that's Delaware County. That's one of the swing counties, one of the suburbs of Philadelphia.



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