First Alert Forecast March 19, 2024 4:50 pm First Alert Forecast: Mountain Shower Chances We have another chance of mountain showers for Wednesday. Meteorologist David Biggar has the evening forecast for Tuesday, March 19, 2024. US & World Videos 3:36 First Alert Forecast: More May Gray 3:21 First Alert Forecast: Slowly clearing marine layer 3:37 First Alert Forecast: Cool Wednesday 3:38 First Alert Forecast: More May Gray 3:04 First Alert Forecast: Temperatures in the 70s