The Telegraph Fire blows up near Yosemite National Park on Tuesday, July 29, 2008, in Greeley Hill, Calif. Fire crews were expected to get some help from a slight drop in temperature, which was forecast to remain in the high 80s, accompanied by low humidity and afternoon winds, the National Weather Service said.
CalFire firefighters watch branches of the Telegraph fire converge near Greeley Hill, Calif., near Yosemite National Park on Tuesday, July 29, 2008.
California Department of Corrections fire crews from the California Department of Forestry reposition themselves as the Telegraph Fire advances near Greeley Hill, Calif., outside Yosemite National Park on Tuesday, July 29, 2008.
An emergency vehicle on scene Tuesday, July 29, 2008, at the Telegraph Fire in Greeley Hill, Calif., near Yosemite National Park.
Firefighters keep an eye on the Telegraph fire near Yosemite Valley Monday, July 28, 2008, outside of Mariposa, Calif. California has been dogged by wildfire since June, and hot, dry conditions have turned flare-ups into prolonged fire fights. While many earlier blazes were ignited by a massive lightning storm, the fire outside Yosemite was sparked by a target shooter.
A helicopter loads water from the Merced River while making water drops on the Telegraph fire near Yosemite Valley Monday, July 28, 2008, outside of Mariposa, Calif.
A helicopter carries water to drop on hotspots on the Telegraph fire near Yosemite Valley Monday, July 28, 2008, outside of Mariposa, Calif.
Waterloo Morada Fire Department Captain Marcus Omlin keeps an eye on the Telegraph fire near Yosemite Valley Monday, July 28, 2008, outside of Mariposa, Calif.
The burned remnants of a house are seen on Whitlock Road in Briceburg, Calif., near Yosemite National Park on Monday, July 28, 2008.
Despite the haze from smoke, tourists stop to take photos of El Capitan, background left, and the Half Dome, background right, on Monday, July 28, 2008, in Yosemite, Calif. Smoke has drifted into Yosemite from the Telegraph fires in Midpines, Calif. California has been dogged by wildfires since June, and hot, dry conditions have turned flare-ups into prolonged fire fights.
Telegraph Fire Public Information Officer Sarah Gibson walks by the remnants of a house Monday, July 28, 2008, in Briceburg, Calif. Little relief from hot weather is expected this week as crews fight to contain a wildfire near Yosemite National Park that has destroyed 12 homes and forced the evacuation of about 200 others.
Telegraph Fire P.I.O. Sarah Gibson points to a burned house Monday, July 28, 2008, in Briceburg, Calif.
Orange County firefighters Tyler Johnson, left and Mike Reinhold look at fires burning across the Briceburg Mountains along the Merced River Sunday, July 27, 2008 in Briceburg, Calif. An out-of-control wildfire burning near an entrance to Yosemite National Park has destroyed a dozen homes and threatened thousands more as flames forced authorities to cut power to the park.
Orange County firefighters Tyler Johnson, left and Mike Reinhold look at fires burning across the Briceburg Mountains along the Merced River Sunday, July 27, 2008, in Briceburg, Calif. The blaze had charred more than 26,000 acres since Friday as wooded slopes ignited amid the hot, dry conditions that have plagued California for months.
Orange County Firefighter Tim O'Hare can only watch fires burning across the Briceburg Mountains along the Merced River Sunday, July 27, 2008 in Briceburg, Calif.
Tony Gorham and his sons Tony Jr., center and Nate wave to friends passing by as fires burn across the Briceburg Mountains along the Merced River in Briceburg, Calif., near Yosemite National Park on Sunday, July 27, 2008. Many firefighters were in the area to make sure fires didn't spread across roads.
Fires consume trees and brush near the Briceburg Mountains along the Merced River Sunday, July 27, 2008 in Briceburg, Calif.