The massive Palisades Fire broke out in Los Angeles on Tuesday afternoon, prompting mandatory evacuations affecting tens of thousands of people and highway closures. Later Tuesday, the Eaton Fire broke out in the foothills of Pasadena on the other side of Los Angeles County.

As much of the country recovers from and prepares for winter storms, Southern California is facing an entirely different problem as multiple wildfires encroach on the Los Angeles area.

Fire officials are investigating what started multiple wildfires near Los Angeles. The Santa Ana winds are likely driving their rapid growth.