weather September 24, 2021 6:48 am Kari's Forecast: Air Quality Advisory Meteorologist Kari Hall has a look at changes in temperatures and air quality in the weekend Microclimate forecast. US & World Videos 7:08 Whistleblower says Contra Costa Health cutting dangerous corners, harming Medi-Cal patients 1:56 USPS offering $150K reward after at least 2 suspects robbed postal worker in Oakland 2:21 Downtown First Thursdays offers new hope to SF residents, struggling merchants 3:09 A closer look: health care whistleblower speaks 2:42 San Jose unveils mobility hub at apartment complex