Oak Fire in Mariposa County explodes in size, forces evacuations

The Oak Fire began at about 2 p.m. southwest of the park near Midpines in Mariposa County and quickly spread to 1,300 acres, according to the California Department of Forestry and Fire Protection.

A fast-moving wildfire near Yosemite National Park erupted Friday afternoon and prompted evacuations even as firefighters made progress against an earlier blaze that burned to the edge of a grove of giant sequoias.

The fast-spreading Oak Fire began at about 2 p.m. southwest of the park near Midpines in Mariposa County and reached 1,600 acres by 8 p.m., according to Calfire and the California Department of Forestry and Fire Protection.

Calfire said the fire has seen no containment, is burning out of control and that buildings may have already burned, but they could not confirm that information. A handful of roads in the Sierra Nevada foothill area were under mandatory evacuation orders.

Approximately 400 firefighters are working the Oak Fire. There’s no immediate word on what sparked the fire.

Meanwhile, firefighters have made significant progress against a wildfire that began in Yosemite National Park and burned into the Sierra National Forest.

The Washburn Fire was 79% contained Friday after burning about 7.5 square miles of forest.

The fire broke out July 7 and forced the closure of the southern entrance to Yosemite and evacuation of the community of Wawona as it burned on the edge of Mariposa Grove, home to hundreds of giant sequoias.

Wawona Road is tentatively set to reopen on Saturday, according to the park website.