A wildfire that had been smoldering for weeks in Yosemite National Park exploded during the weekend, forcing the park to evacuate hikers by helicopter.
The Meadow fire had grown to about 2,600 acres by Monday morning. The fire, started by lightning in August, had been confined to about 20 acres until wind Sunday spread sparks to areas of dry brush.
Trails on Half Dome and in the Merced Lake area were closed. Hikers were evacuated from Half Dome and elsewhere.
"The fire was getting very close to the trail to Half Dome and we didn't want to take the chance on people having to hike through the fire to get back," said Tim Ludington, a Yosemite spokesman.