bay area weather 17 hours ago Bay Area heat wave: Warnings downgraded to advisories All excessive heat warnings on Monday were downgraded to heat advisories, according to the National Weather Service. Vianey Arana and Bob Redell report. US & World Videos 3:52 Jeff's forecast: Cooler temps 3:01 October heat brings extreme fire danger 3:07 Forecast: Heat advisory, gradual cooling ahead 2:40 Vianey's forecast: Heat advisory, gradual cooling ahead 2:51 Rob's Forecast: More heat Monday, cooling returns Tuesday