Rainfall is expected to reach Los Angeles and Southern California this weekend, bringing the risk of mudslides and fire debris flow.

In 2018, Montecito, a town 80 miles (130 kilometers) up the coast from Los Angeles, was ravaged by mudslides after a downpour hit mountain slopes burned bare by a huge wildfire. Twenty-three people died, and hundreds of homes were damaged.

Santa Ana winds are whipping Southern California on Tuesday, sparking fresh fears that progress made fighting wildfires that have scorched over 40,000 acres and left 27 dead could be reversed and more blazes could break out.