Dallas July 25, 2021 5:13 pm MedStar Activates Extreme Weather Response Protocol as North Texans Try to Beat the Heat With high temperatures approaching 100 degrees Sunday, MedStar rolled out its extreme weather response protocol. Wake Up to Something Good 2:30 NBC 5 Forecast: A slim evening storm chance, then increasing heat 3:00 NBC 5 Forecast: A slim evening storm chance, then increasing heat 0:39 Weather Quiz: Wind shear 2:28 NBC 5 Forecast: A slim evening storm chance, then increasing heat 2:25 NBC 5 Forecast: A few spotty showers or thunderstorms could develop today, some severe