As the Bay Area gears up for triple digit temperatures this weekend, officials are warning conditions are already ripe for wildfires.
The National Weather Service has issued a red-flag fire weather warning for parts of the North Bay this weekend due to a dangerous combination of gusty winds, high temperatures, and low humidity.
The warning extends from 11 p.m. Friday to 11 p.m. Saturday, and covers regions of higher elevation in Napa County and far eastern Sonoma County.
Northeast winds will strengthen overnight Friday followed by warmer and drier conditions on Saturday, according to the service.
Winds of 15 miles per hour to 30 mph are expected, with gusts up to 40 mph. Daytime humidity is expected to drop to the 10 to 20 percent range, recovering poorly at night to less than 30 percent. Those numbers will drop to the single digits in the driest locations.