Despite some unsettled weather this weekend, crews continue to make progress on the massive Park Fire burning northeast of Chico. The fire, the fourth largest in state history, has burned more than 401,000 acres. Many evacuation orders and warnings have been lifted, meaning residents can return to their homes. Reporter: Alec Stutson, North State Public Radio A UC Davis report confirms a years-long trend at Lake Tahoe, where water clarity improves in the winter but becomes far worse in the summer. Reporter: Manola Secaira, CapRadio   Learn more about your ad choices. Visit megaphone.fm/adchoices