Gerry Diaz is the first meteorologist in San Francisco Chronicle history, after working for the National Weather Service. Total SF hosts Heather Knight and Peter Hartlaub invite Diaz on the podcast to talk about San Francisco fog and why it happens, the current cold front and help us give a name to San Francisco's wind. Knight and Hartlaub also welcome Diaz to San Francisco, and talk about how newcomers to the city help us all appreciate our home. Produced by Peter Hartlaub. Music from the Sunset Shipwrecks off their album "Community," Castro Theatre organist David Hegarty and cable car bell-ringing by 8-time champion Byron Cobb. Follow Total SF adventures at www.sfchronicle.com/totalsf  Learn more about your ad choices. Visit megaphone.fm/adchoices