New Year's Deluge: Los Angeles Braces for More Flooding After Christmas Storms

Los Angeles faces a wet and dangerous start to the New Year. Forecasters warn of two new rounds of rain, beginning on New Year's Eve. This comes just days after powerful Christmas-week storms. The already soaked ground raises the risk of flash flooding and mudslides. The first bout of rain is expected Sunday night. A second, potentially stronger system may follow early next week. Residents in hillside and burn-scar areas are urged to prepare. Officials advise monitoring local warnings and having emergency plans ready. The repeated storms are due to an "atmospheric river." This weather pattern is a long, narrow band in the atmosphere that carries huge amounts of moisture from the tropics.