An atmospheric river will hit Southern California this weekend, bringing heavy rain and the threat of flash floods to Los Angeles.

LOS ANGELES - Wet weather is expected in Southern California over the next several days as a series of storms move into the region. The National Weather Service is predicting the heaviest impacts to be between 3 a.m. and 6 p.m. Saturday, with a moderate risk for damaging flooding and debris flow. The storm is expected to last through Sunday.

Around 23 million people across California are covered by flood notices Friday as Los Angeles braces for what could be a month's worth of rain in a day.

Rain continues in Los Angeles with a 30% chance today, increasing to 80% tonight and 90% Saturday, some thunderstorms possible.

Los Angeles County is included in a report for strong thunderstorms by the National Weather Service on Saturday at 5:44 a.m. The alert is in effect until 6:30 a.m.

At a press conference on Friday, city officials emphasized that while some Angelenos may feel no impacts at all, some areas could be hit hard.

Los Angeles had a foggy Veterans Day, with a Dense Fog Advisory in effect until 9 AM. The city expected partly sunny skies post-fog, with a high near 80. Showers were likely later in the week with temperatures dipping to the mid-60s.

Eastern San Gabriel Mountains, Eastern Antelope Valley Foothills and Antelope Valley are under a weather alert for strong thunderstorms by the National Weather Service on Saturday at 10:39 a.m.

The storm could trigger dangerous flash floods and mudslides, but it may also extinguish California’s wildfire season.