Tonight's first Guest WeatherBrain is a long-time friend of the show and has appeared on numerous previous episodes.  He's the Chief Marketing Meteorologist for Weather 2020.  Bruce Thomas, welcome back!  Our second Guest WeatherBrain is a meteorologist for the Capital Weather Gang in Washington, DC.  He wrote an article about the Tennessee tornadoes that occurred earlier this month.    Matthew Cappucci, welcome to WeatherBrains!  Our third guest WeatherBrain runs the Nashville Severe Weather Blog.  David Drobny, welcome to WeatherBrains!  Our fourth guest WeatherBrain is the Lead Forecaster at the National Weather Service Office in Nashville, TN.  Sam Shamburger, welcome to WeatherBrains!  Our fifth guest WeatherBrain is an Emmy Award-winning broadcast television meteorologist at NewsChannel 5 in Nashville.  Henry Rothenberg, welcome to the show!