First Alert Forecast December 21, 2020 6:04 am First Alert Forecast: Santa Ana Winds Return This Week Here’s a look at your holiday week forecast. Belen De Leon has the forecast for Monday Dec. 21, 2020. 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