First Alert Forecast August 17, 2023 7:17 am First Alert Forecast Tropical storm impacts How will a tropical storm influence weather in LA? Belen De Leon has the forecast for Thursday Aug. 17, 2023. US & World Videos 2:28 First Alert Forecast: Chilly temperatures 3:05 First Alert Forecast: Cooler Thursday 3:25 First Alert Forecast: Critical fire weather 3:50 First Alert Forecast: Breezy Wednesday 3:42 First Alert Forecast: Winds & Fire Danger