A powerful storm dropping drenching rain on flood-prone Southern California is raising concern among forecasters that it could produce a dangerous, widespread outbreak of tornadoes, damaging winds and fires along with a blizzard as it crosses the entire United States in the coming days.

Evacuation warnings and orders have been issued for Los Angeles communities near the Eaton, Palisades and Sunset fire burn zones ahead of the rain.

A massive storm is currently battering Southern California, presenting the risk of flooding, debris flows and mudslides, especially near the sites of January’s deadly and highly destructive wildfires which took the lives of at least 29 people and destroyed or damaged more than 18,