It starts at 11 p.m. until Sunday at 5 p.m. in the North Bay. The most dangerous area is in the eastern foothills and mountains in Napa County, as winds could gust 40 to 60 mph coming out of the northeast.
The warning is also for Solano County starting at 6 a.m. Saturday until 5 p.m. Sunday.
There's also a Heat Advisory for the Bay Area from Sunday at 10 a.m. until 9 .m., including San Francisco, where highs could reach the 90s Sunday. This may not even be the hottest day for some parts of the Bay Area.
Watch the latest AccuWeather forecast and take a look at recent weather stories and videos.
*RED FLAG WARNING*— Mike Nicco (@MikeNiccoABC7) June 7, 2019
Rapidly developing winds along with increasingly dry vegetation create our 1st high fire danger event of the year. I know, it's only June...#RedFlagWarning pic.twitter.com/BmCh5wVqCD