Approximately 24 million people across the U.S. are under winter storm alerts. Dave Malkoff and Andrew Kozak have the details on this holiday weekend's forecast and the impact.

Chicago

A major winter storm has struck the Midwest, placing over 42 million people under winter weather alerts and causing significant disruptions to post-Thanksgiving travel. Up to one foot of snow is expected in some areas, prompting officials to advise against road travel and resulting in thousands of flight delays and cancellations, particularly at Chicago's airports.

The Federal Aviation Administration has also mandated an emergency software update for thousands of Airbus A320 family planes, requiring completion by Sunday morning to avoid grounding. The storm is expected to move into New England, with additional snowfall and an arctic blast forecast for the northern regions in the coming days.

Major storm blasts Midwest, impacting holiday travel

Good evening everyone and thank you for joining us on this Saturday. Tonight 42 million people across this country are under winter storm alerts. That's making post Thanksgiving travel pretty stressful. Up to one foot of snow is expected in parts of the Midwest and officials have warned people to stay off the roads. Flight delays, cancellations are also adding up. Plus there's another problem. If you're flying, some jets require a critical software update before midnight Sunday. CBS is Dave Malkoff at Chicago's O'Hare Airport leads us off tonight. Dave Good evening. Jerica is really coming down now at one point this evening, more than 40% of the worldwide cancellations were coming from the two airports in the Chicago area. That's why here at O'Hare the frustration is real. Tonight, a powerful winter storm is blasting the Midwest with snow and cold air. It comes as millions of americans are making their journey back home from their thanksgiving travels here in Chicago. More than 1000 flights have been canceled at O'Hare International. Michelle Hedrick is trying to get to Tampa florida, but she's had two flights canceled so far. One of them was the Airbus, uh, for spirit that the Airbus, it was called Clyde, you know, canceled that. So they say that it was because of the software. They do not. The FAA is mandating an emergency software update to correct a flight control issue for thousands of planes in the Airbus 3 20 family. The planes must be updated by sunday morning or they will be grounded. The storm is impacting drivers as well. In Iowa, this interstate is covered in snow and ice. Many cars and trucks are sliding into ditches back at the airport. Tomorrow is expected to be the busiest day. Three million passengers are expected to fly nationwide. It's like I could spend the night here if I wanted to or I could rent a car. Think about that. If she drove right now from Chicago to Tampa, it would take her 18 hours. We're talking about more than 5000 delays and 1500 cancellations across the country. That's a lot of people trying to get home. You gotta do what you gotta do. Dave Malkoff, thank you for new details on the cross country storm and what it means for your return home. Let's check in with CBS News meteorologist Andrew Kozak. Yeah, good evening. Jerica. Tonight, 50 million americans are still underneath winter weather alerts, advisories, warnings all across the Great Lakes, the northern plains areas like Des Moines. Yeah, we could still up and down 35 be looking at accumulating snow areas like Ellsworth, just north of Des Moines on 35 over 12 inches of snow. Let's talk about where this is going pulls across the Great Lakes and into New England tonight. By sunday, it's still a chilly rain across the I-95 corridor, but it is plain old rain for the major cities. A bit of a break into early monday that our next system starts to ramp up and this time it's areas across the Appalachians that could be looking at accumulating snow and even starting to see some wet flakes mixing in for the major cities across the northeast. So additional snowfall the next three days will include not just the Great Lakes but also New England as we track that seconds area of snow. And now we're also tracking an arctic blast. We're talking about temperatures that will feel well below zero for the northern plains, the Great Lakes and even into New England for the middle of the upcoming week. Jerica. All right, Andrew, thank you.

President Trump intensified his pressure campaign on Venezuela on Saturday. He posted that the airspace around the country is "closed in its entirety." It comes amid growing pressure on Venezuelan leader Nicolás Maduro to step down.

Caracas

Trump declares Venezuela's airspace closed

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Kyiv

Ukraine Invasion

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Rome

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Colombo

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Tsim Sha Tsui

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Istanbul

Pope Leo XIV visits Istanbul's iconic Blue Mosque on Turkey trip

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Washington

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Leiden

Airbus issues major A320 recall, threatening holiday travel

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Hong Kong Island

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Damascus

Middle East Conflict

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Jerusalem

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Tel Aviv-Yafo

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West Virginia

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Tai Po District

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Lima

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Brazil's Supreme Court on Tuesday ordered far-right former president Jair Bolsonaro to begin serving a 27-year sentence for plotting a failed coup, after he exhausted all appeals.

Rio de Janeiro

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Breakdown