reporter natalie grounda from our sister station in fresno has that story. >> air crews re attacking the flames from above as more fire crews from around the state are coming in to help battle the fire. >> when you add in the fact we're in the foothills, when you add in slopes and grades and the temperatures we're dealing with, the humidity we're dealing with, it's a full on challenge. >> the fire has prompted road closures. we drove through the portion of the highway where crews were working to control the flames. >> i don't think we can emphasize enough how active erratic this fire is. >> hundreds of fire personnel and air support crews are working quick. the line of fire is moving fast. greg says he saw the fire come through the hill in front of his home and is ready to go if the flames move closer. >> all our vehicles are lined up right here ready to pull out. >> pg&e officials say more than 10,000 people are without power. and at least 100 power poles have been damaged by the fire. many of those power lines being threatened do service yosemite national park. pg&e says that sever

reporter natalie grounda from our sister station in fresno has that story. >> air crews re attacking