A new atmospheric river is slamming California, including fire-ravaged Los Angeles, where residents are bracing for the possibility of mudslides and landslides.

Parts of Los Angeles County are experiencing mudslides and flooding following a major rain storm — just a month after deadly fires ravaged the region. The National Weather Service issued an alert Thursday evening local time — warning residents of a “high risk of road flooding, burn scar debris flows, and strong winds or brief tornadoes.”