weather quiz May 23, 2024 4:52 pm Weather Quiz: Jet stream NBC 5 Chief Meteorologist Rick Mitchell asks when was the jet stream discovered? Wake Up to Something Good 2:29 NBC 5 FORECAST: Late summer heatwave 2:28 NBC 5 Forecast: Late summer heatwave 0:40 Time for Lights Out in DFW fall bird migration of birds begins 0:38 NOAA issues La Nina Watch this week 2:25 NBC 5 FORECAST: Late summer heat wave