First Alert Forecast October 1, 2024 4:38 pm First Alert Forecast: Dangerous Heat for Wednesday Dangerous heat is back for Wednesday. Meteorologist David Biggar has the evening forecast for Tuesday, October 1, 2024. US & World Videos 3:10 First Alert Forecast: Red flag warning in effect 3:43 First Alert Forecast: Slight Cooling 3:17 First Alert Forecast: Heat continues 3:35 First Alert Forecast: Heat Returns 2:55 First Alert Forecast: High temperatures on the way