Red Flag Warning for Monday(12/7) at 4:00AM through Tuesday (12/8) at 10:00PM The National Weather Service in San Diego has issued a Red Flag Warning, which is in effect from Monday (12/7) at 4:00AM through Tuesday (12/8) at 10:00PM for the inland valleys and mountains of San Diego County. The Red Flag Warning has been issued due to strong gusty winds and low humidity. Areas will see winds from 25 mph with gusts up to 60 mph. Higher gusts are possible in the windiest locations. More forecast information and updates are available from the National Weather Service. Any fires that develop may 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 county’s regional notification system to receive alerts directly to your mobile device.