First Alert Forecast August 27, 2020 6:40 am First Alert Forecast: Heat Advisories, Warnings Heat warnings are in effect for parts of SoCal. Belen De Leon has your First Alert forecast for Thursday, Aug. 27, 2020. US & World Videos 3:47 First Alert Forecast: Morning Clouds & Fog 3:03 First Alert Forecast: More Clouds & Fog 3:50 First Alert Forecast: Patchy Fog Returns 3:06 First Alert Forecast: Warm weather ahead 3:07 First Alert Forecast: Patchy clouds and fog