The blaze was reported around 3:30 p.m. Thursday. It quickly grew to 3,000 acres with only 10 percent containment by Friday afternoon. It's located near Twitchell Reservoir off Highway 166, near the Santa Barbara County line.
It reached 3,400 acres and 20 percent containment later Friday evening, according to Santa Barbara County Fire.
The smoke was seen for miles and the Santa Maria Police Department tweeted out a photo of the clouds of smoke that could be seen at its headquarters.
Evacuation warnings were issued for Tepusquet Blazing Saddles area. Mandatory orders were issued for people living along Blazing Saddles Road and White Rock Lane, according to the Santa Barbara County Fire public information officer.
The cause of the blaze was unknown.