Heat wave sweeping the Bay Area is a shock for March

This week's heat wave comes with a warning from the National Weather Service - It's the Bay Area's FIRST EVER heat advisory in the month of March. Thousands of people in downtown San Jose for the Nvidia conference With a heat advisory in effect in the Bay Area, county officials are prepared to open cooling centers if necessary. All this and more on this edition of the Bay Area All Local KCBS Radio News Anchor Margie Shafer