Important Takeaways:

• The threat is present at each of the major fires’ burn scars, including the Palisades and Eaton Fires, as well as the earlier Bridge Fire.
• The most recent blazes collectively burned more than 16,000 structures and killed more than 25 people in early January.
• The ground can even give way during periods of intense rainfall, as “burned soil can be as water-repellant as pavement,” according to the NWS.
• California has seen multiple deadly disasters involving burn scar landslides of various types, including a debris flow in Montecito that killed 23 people.
• The NWS forecast office in Los Angeles is warning of the risk for “life-threatening” burn scar flooding and debris flows as the heaviest rain sweeps through Thursday afternoon and evening.
• As of Wednesday morning, flash flood watches — including those in California — were in effect for about 10 million people, while winter storm warnings and advisories were in force for about 240 million people from California to Maine.

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