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A mobile home burns at South Cedar and South 8th St., during a large wildfire, Friday, Aug. 3, 2012 in Luther, Okla. A wildfire whipped by gusty, southerly winds swept through rural woodlands north and south of Oklahoma City on Friday, burning several homes as firefighters struggled to contain it in 113-degree heat. (AP Photo/The Oklahoman, Sarah Phipps) TABLOIDS OUT

A mobile home burns at South Cedar and South 8th St., during a large wildfire, Friday, Aug. 3, 2012 in Luther, Okla. A wildfire whipped by gusty, southerly winds swept through rural woodlands north and south of Oklahoma City on Friday, burning several homes as firefighters struggled to contain it in 113-degree heat. (AP Photo/The Oklahoman, Sarah Phipps) TABLOIDS OUT

Wildfires blaze across Oklahoma

Cooler temperatures gave a slight boost on Sunday Aug. 5, to crews battling 18 wildfires across Oklahoma that have torched at least 121 structures and charred thousands of acres amid a drought.