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 0:40 Weather Quiz: Weather Alerts 0:43 Weather Quiz: Cyclogenesis 0:41 Weather Quiz: First freeze 0:23 What has happened to the U.S. flags on the moon? 0:49 Weather Quiz: Dogs hear thunder