First Alert Forecast December 20, 2019 5:56 am First Alert Forecast: Rain on the Way Rain is on the way for Christmas week. Shanna Mendiola has the First Alert Forecast Dec. 20, 2019. US & World Videos 3:46 First Alert Forecast: Beautiful Week Ahead 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