Significant tornadoes (rated EF2 or higher on the Enhanced-Fujita scale) identified in Storm Data between 2007 and 2010 will be matched to their parent storms using radar data from the Gibson-Ridge level-II radar software package (GRLevel2). Each tornadic storm's structure [e.g. classic (CL), high-precipitation (HP), low-precipitation (LP), and mini (low topped) supercells, multicell, mesoscale convective system (MCS)/quasi-linear convective system (QLCS), or other) is classified, identifying the presence of classic features [e.g. rear flank downdraft (RFD), hook echo, hail cores, etc.] and whether tornadoes were rain-wrapped or not. Archived data sets will also be used to determine what kind of forcing mechanism (e.g. dryline, outflow boundary, pre-frontal trough, cold front, warm front, or other) initiated each storm. This study will benefit forecasters, researchers, and emergency managers that serve the general public, increasing awareness and public safety during hazardous weather situations.