The National Weather Service has issued a Red Flag Warning for parts of the North Bay effective late Wednesday night through Thursday morning because of dry and windy weather conditions.
The weather service had previously issued a fire weather watch for the region but upgraded it to the more serious Red Flag Warning, saying the area of greatest concern is for interior North Bay hills and mountains, particularly the Vaca and Mayacamas mountain ranges and along the border between Napa and Sonoma counties.
Winds of around 15-25 mph with gusts of up to 35 mph are expected in the area, which will have low humidity overnight. Those conditions combined with dry vegetation from the ongoing drought prompted the warning, according to the weather service.
The warning is set to go into effect at 11 p.m. Wednesday and expire at 11 a.m. Thursday.