Firefighters battling the giant wildfire burning in the Sierra Nevada added a California National Guard Predator drone to their arsenal Wednesday to give them almost immediate views of any portion of the flames.
San Francisco Public Utilities Commission officials said Wednesday that the city’s water supply in the Hetch Hetchy Reservoir is still unaffected by the massive Rim Fire that continues to burn in and around Yosemite National Park.
Unnaturally long intervals between wildfires and years of drought primed the Sierra Nevada for the explosive conflagration chewing up the rugged landscape on the edge of Yosemite National Park, forestry experts say.
A raging wildfire in Yosemite National Park rained ash on the reservoir that is the chief source of San Francisco’s famously pure drinking water, and utility officials Monday scrambled to send more water toward the metropolitan area before it becomes tainted.
The huge wildfire that’s crept into Yosemite National Park is now the biggest wildfire on record in California’s Sierra Nevada, officials declared Monday.
San Francisco’s supply of water and electricity remained safe Sunday as a forest fire continued to burn out of control near Yosemite National Park and the Bay Area’s Hetch Hetchy water source, fire and utility officials said.
Overnight the Rim Fire on Yosemite’s northern border grew 7 square miles as firefighters gained little ground in slowing the now 207-square-mile blaze.
As the 125,000-acre Rim Fire raged along the remote northwest edge of Yosemite National Park, officials were clearing brush and setting sprinklers to save two groves of giant sequoias.
As a massive wildfire burning into Yosemite National Park grew to nearly 200 square miles, Gov. Jerry Brown declared a state of emergency for the city of San Francisco 150 miles away because of the threat to the city’s utilities.
A Northern California wildfire raging out of control grew to more than three times the size of the city of San Francisco as it spread inside the border of Yosemite National Park.