Flooding May 16, 2021 7:47 pm Viewers Share Video of Sunday Flooding Heavy rain fell on North Texas Sunday, May 16, 2021. NBC 5 viewers shared videos of the rising water that covered roads and caused nearby rivers to swell. Wake Up to Something Good 2:28 NBC 5 Forecast: Drying out and warming up 2:57 NBC 5 Forecast: Drying out and warming up 0:36 Weather Quiz: Lightning Bolt 2:32 NBC 5 Forecast: Drying out and warming up 2:27 NBC 5 Forecast: A few afternoon storms. Flood risk to the southeast.