severe weather March 1, 2023 7:21 pm What Is a Supercell Storm System? NBC 5 Chief Meteorologist Rick Mitchell and Telemundo 39 Chief Meteorologist Nestor Flecha explain what a supercell storm is and how it’s different from other thunderstorms. Wake Up to Something Good 20:29 Weather Quiz: Wind 0:46 Weather Quiz: EF Scale 0:42 Weather Quiz: Storm Prediction Center 0:41 Weather Quiz: Outdoor warning sirens 1:11 Weather Quiz: Weather balloons