First Alert Forecast September 12, 2020 4:10 pm First Alert Forecast: Smoky Skies Smoky skies and high temperatures across most of SoCal Saturday. Shanna Mendiola has the First Alert Forecast Sept. 12, 2020. US & World Videos 3:18 First Alert Forecast: Breezy Sunday 3:31 First Alert Forecast: Mostly Cloudy Saturday 3:12 First Alert Forecast: Rain this weekend 3:46 First Alert Forecast: Weekend Sprinkle Chance 3:47 First Alert Forecast: Morning Clouds & Fog