With the Palisades and Eaton fires still not fully contained, a new Southern California blaze sparked up Wednesday north of Santa Clarita, burning more than 9,400 acres in a matter of hours, forcing evacuations by the thousands and shutting down sections of the 5 freeway.

Santa Clarita Mayor Bill Miranda urges residents to prepare their evacuation bags and be ready to go. Stronger winds are expected into the evening which could spread embers and ignite new hot spots.