SkyWarn Spotters Track Storms with the MRX SkyWarn The purpose of this site is to provide important information to the 40 SKYWARN counties (8 Districts) within the NWS Morristown Warning Area. This includes 33 counties in Eastern Tennessee, 5 counties in SW Virginia, and 2 counties in Western North Carolina (i.e., Clay and Cherokee). Explore More SkyWarn