The National Weather Service in San Diego has extended the Red Flag Warning to Friday, 1/24 until 10am. The Red Flag Warning has been issued due to strong gusty winds and low humidity for the mountains and valleys of San Diego County.

Any fires that develop will spread rapidly with extreme fire behavior, threatening life and property.
Be prepared to evacuate if needed.
Be sure your cell phone is registered with AlertSanDiego, the notification system used by first responders to alert you. People may also register their VoIP phone numbers or emails.
Download the free SD Emergency and Genasys Protect apps on your mobile device to receive updates on evacuations in your area.
Review your emergency plan.
Review your evacuation (emergency exit) routes.
More forecast information and updates are available from the National Weather Service.