From the SF Gate:
Deadly, wind-whipped wildfires have caused the largest evacuation in state history, forcing more than 500,000 people to flee ahead of flames that destroyed more than 1,300 homes and continued Tuesday to threaten tens of thousands more.
About 375,000 acres, or 585 square miles, were ablaze in Southern California. The number of people joining the mandatory exodus and the number of homes destroyed were expected to grow as new fires started and others continued to burn a path toward the sea through populated communities.
Update: If you're local and can help, look here and here and here. And... the fire response is being called Not New Orleans.