A Potentially Dangerous Situation red flag warning was also issued for the Santa Susana Mountains until 10 a.m. Wednesday. These Potentially Dangerous Situations are rarely issued and are reserved for the most extreme events; however, climate change is increasing the frequency of these events. Last month, similar Santa Ana winds helped the Mountain Fire explode in size and send it tearing through neighborhoods, prompting evacuations and school closures. The timing of this Santa Ana Wind Event is similar to the Thomas Fire, which burned over 280,000 acres from December 2017 to January 2018 and is the ninth-largest wildfire in California history. The conditions will slowly begin to improve Wednesday as some of the Potentially Dangerous Situation warnings should expire.

---

Persons: Thomas, cnnweather Organizations: CNN, San, Santa, LA, Ventura, NWS, NWS Los Angeles Locations: Southern California, Ventura County, San Gabriel, Santa Monica, Santa Clarita Valley, San Fernando Valley, Santa Susana, Santa Ana, Santa, NWS Los, California, Santa Susanas, Malibu, Ventura, Simi Valley, San Fernando, Porter Ranch, Camarillo, Los Angeles