mixed relief in idaho as storms drop rainwater on a fire near sun valley. but lightning sparked new blazes. let's go to dominic dinatale. in northern california, a city is threatened and it's threatening san francisco. give us the details, dominic. >> certainly. yeah. the weather here is getting hot this afternoon and that's going to keep the fire going. they're saying this could jump out of its containment area partly due to bad weather. the big worry is what might happen in san francisco. part of the yosemite park caught fire near one of the major dams that provides 85% of the water supply to san francisco. on top of that, some of the power lines coming out of this area that also feed the city have been affected by the fire. the governor, jerry brown, saying it might disrupt both power and water supplies. they're already taking power from elsewhere on the grid because some of the power had to