Rescue efforts underway for snowed-in California residents trapped in their homes

While the deadly snowstorm in California, Sierra Nevada has moved east. Emergency crews are still trying to reach those trapped inside their homes. Governor Gavin Newsom declared a state of emergency in more than a dozen counties to help the relief effort. CBS's Jonathan Vigliotti is there. A desperate scene in the mountains of California. People are trapped in their homes and have been for now more than five days because the streets are not plowed. Powerful images of the massive snowfall up to the rooftops, miles and miles of streets buried, impassable.

This is the only route out for resident Michelle Calkins. This is her house. We need help. People are trapped in their homes. They cannot get medicine, heart medicine, insulin. Plow operators are doing what they can, the state vowing to send emergency food and supplies. But here's what happened to one nearby market that had been open.

Our store was a total loss. The entire roof collapsed. There's nothing salvageable inside. To the south in Malibu, the aftermath of the latest violent storm is still being felt. And in Northern California, avalanche warnings remain in the Sierra Nevada. One hit this apartment building near Lake Tahoe. All residents got out safely.

To give you a sense of scale, this avalanche was a wall of ice and snow 25 feet tall, 200 yards wide, capable of moving at speeds up to 150 miles per hour. It uprooted entire trees, sending them like projectiles into this three-story apartment complex. It is the first avalanche to hit town since the mid-90s, Nora. Stunning to see you, Jonathan Vigliotti. Thank you.

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