( CNN ) -- It was a rare bright spot on an otherwise hazy , smoke-filled horizon . As firefighters worked to get a grip on one of the largest wildfires in California 's history , an evacuation advisory was lifted Thursday for residents in Tuolumne City , a picturesque community threatened by the blaze . In a further sign of progress , authorities also withdrew similar advisories for two other northern California communities close to the flames , Soulsbyville and Willow Springs . Known as the Rim Fire , the conflagration has charred nearly 200,000 acres , cost the state more than $ 39 million to date and is threatening 5,500 structures , of which 4,500 are residences . It 's the fifth-largest wildfire in California history . On Thursday , it was in its 12th day and it had only been contained 32 % , according to Cal Fire . That 's a slight improvement from the 30 % containment the day before . Because of the approaching flames , officials have shut down electricity generators , and San Francisco -- more than 120 miles to the west -- is temporarily getting power from elsewhere . 5,000 firefighters battle the blaze . While the Yosemite Conservancy says the Rim Fire has consumed tens of thousands of acres inside Yosemite National Park , it has so far had little or no direct impact on Yosemite Valley , a popular spot for tourists and home to many of the park 's iconic attractions , including the El Capitan rock formation . What you need to know about wildfires . Firefighters hope to keep it that way . Nearly 5,000 people have been assigned to tackling the blaze . `` This is going to be a tough fire , '' said Tom Tidwell , chief of the U.S. Forest Service . `` It 's going to continue for a few more weeks . '' The blaze has created challenges not only for utility providers , but also for local firefighters , who fill in for state and federal fire teams . `` It makes more work for us . Everybody has to work more , whether they are up there or not , '' Art Ray , chief operator for the Stockton Fire Department , told CNN affiliate KCRA . Some firefighters get little sleep , working four straight days , he said . `` We have to work 72 or 96 hours in a row , and being away from your family with little sleep and physically demanding takes a toll , '' Ray said . ' A lot of work to be done ' Authorities say the Rim Fire started on August 17 . The cause is under investigation . Wildfire threatens 90-year-old cabin . `` There 's a lot of concern , and there 's a lot of work to be done , '' Forest Service spokesman Lee Bentley said . Firefighters have been able to build fire lines in several locations , officials say . The forecast is looking favorable as daytime highs sink into the 60s in Yosemite National Park over the Labor Day weekend , a break from the temperatures in the 80s firefighters were facing earlier in the week . More than 20 helicopters and air tankers were aiding the efforts . Firefighters battle blaze near Yosemite . CNN 's Dana Ford , Gary Tuchman and David Simpson contributed to this report .
The Rim Fire , which has burned nearly 200,000 acres , is 32 % contained . Score: 7 The blaze has cost the state more than $ 39 million to date . Forest Service chief says firefighting will continue for weeks .