January 4, 2018 4:25 pm Thunderstorms 4 A storm arriving Wednesday will bring the chance of rain and isolated Thunderstorms. Chief Meteorologist Jeff Ranieri has the updated timeline in your Microclimate Forecast. US & World Videos 2:51 Cinthia's forecast: Spring storm, cooler temperatures 2:58 Jeff's Forecast: Saturday rain drops temps and brings major Sierra snow 3:25 Bay Area Forecast: Storm brings rain, colder temps and big Sierra snow 2:31 Forecast: Rainy Saturday ahead 2:12 Kari's forecast: Rainy Saturday ahead