Cities with first-time fire zone designations include Santa Monica, La Cañada-Flintridge, South Pasadena, Alhambra, Huntington Beach, Laguna Hills, Chino Hills and Rancho Cucamonga.

Some cities had fewer acres in the very high risk designation, but most of the region had more high risk acreage.

More than 800,000 acres of land across these SoCal counties have been classified under the highest fire hazard severity zone level.