While officials confirmed that several structures have been damaged or destroyed in the King Fire, dangerous conditions have so far prevented them from determining an exact number or how many of them were homes, fire spokesman Mike McMillian said. The fire some 60 miles east of Sacramento grew to more than 128 square miles Saturday, and gathering thunderstorms could either help or harm the firefight with moisture or wind, authorities said. About 100 evacuees have been allowed to return home, but some 2,700 remain under evacuation orders, Cal Fire said in a statement.