The fast-moving brush fire in the Cajon Pass grew to more than 350 acres Monday afternoon, fueled by Santa Ana winds and high temperatures, reports the Los Angeles Times.
The fire triggered mandatory evacuations in the Mathews Ranch area and backed up traffic for miles, as authorities shut down the 15 Freeway, a primary artery from Southern California to Las Vegas.
Smoke could be seen for miles, and residents in the San Bernardino area reported on Twitter that the wind was carrying ash as far away as Fontana. By 1:40 p.m., the fire was 5 percent contained, a U.S. Forest Service spokesman said.
The Devore fire broke out shortly before 11 a.m. near the northbound 15 Freeway between the Kenwood Avenue and Cleghorn Road exits.
Pushed by 10 mph winds, the fire was burning southeast in steep and rugged terrain, where it threatened several homes on Mathews Ranch Road and could pose a similar problem for residents in Devore Heights, Miller said.
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