A rapidly spreading vegetation fire that has burned more than 4 square miles in the Pope Valley area of Napa County has damaged five structures and prompted the mandatory evacuation of 180 homes, Cal Fire said late Tuesday.
Smoke from the 2,700-acre fire was visible from several counties -- including Sonoma, Marin and Contra Costa. The smoke was also visible from nearby wineries.
- The latest: More than 280 structures threatened
The fire was about 30 percent contained as of 6 p.m., according to Cal Fire.
Residents of the Berryessa Estates subdivision in Pope Valley were being evacuated, Cal Fire said. Evacuations were also are in effect on Snell Valley Road to the Lake County line.
Two evacuation centers have been setup at at Polk Valley School and at Middletown High School.
The blaze erupted at 12:08 p.m. in the 7800 block of Butts Canyon Road, according to a Cal Fire spokesperson.
Butts Valley, Snell Valley and Aetna Springs roads are closed. The fire reportedly jumped Butts Canyon and Snell Valley roads.
Firefighters from the City of Napa, St. Helena and the Lake County and Napa County fire departments, the California Highway Patrol and the Napa County Sheriff's Office have also responded.
Firefighters are battling a 30 acre fire off Butts Canyon Rd in Pope Valley, 10 miles southeast of Middletown (Napa County). #ButtsFire
— CAL FIRE (@CAL_FIRE) July 1, 2014
Bay City News Service and the Associated Press contributed to this report.