March 21, 2010 8:46 pm Video Forecast – March 21, 2010 Meteorologist Grant Johnston updates the forecast for Sunday, March 21, 2010. Wake Up to Something Good 2:28 NBC 5 Forecast: Storm chances continue into Sunday 2:34 NBC 5 Forecast: Storm chances continue into Sunday 4:07 NBC 5 Forecast: Storm chances continue into the weekend 2:33 NBC 5 Forecast: Storm chances continue into the weekend 2:55 NBC 5 Forecast: Storm chances Friday and the weekend