Damage survey information from the 3 May 1999 F5 tornado that struck the Oklahoma City metropolitan area were digitized into a Geographic Information System (GIS; Arcview). The damage survey coverage consisted of Contours of the Fujita-scale of the damage intensity from F0/F1 to F5. WSR-88D data from the Twin Lakes OK (KTLX) location were also converted into Arcview coverages.

We use the GIS to compare the tornado damage path to the three-dimensional radar vortex signatures observed in the KTLX data. We will illustrate the offset between the damage path and low-altitude mesocyclone path, the differences in the width of two paths along the entire distance, and the vortex tilt with height. Operational implications will be discussed.