What is already known:
What this study adds:
With minimal past research, the impacts of terrain on tornadic-scale circulations remain unclear. This study utilizes data from individual NEXRAD radars, Multi-Radar Multi-Sensor (MRMS) products, damage surveys, and geological surveys to investigate relationships among tornado intensity, surface damage, and terrain height. Eight tornadoes, combined into six cases, from 2-3 March 2020 and 12-13 April 2020 are examined. Correlations are calculated for each case between six variables: rotational intensity (ΔV), maximum EF-scale rating, maximum MRMS Rotation Track value, damage width, velocity couplet width, and terrain height. Data for each variable are recorded at the 0.5° elevation scan time steps from the NEXRAD radars. Four of the six cases utilized additional low-level scans (SAILS) on the 0.5° tilt, but time gaps between updates limit available velocity data. The importance in distinguishing between tornado-level and mesocyclone-level winds in radar velocities based on range and beam height is discussed. Strong correlation coefficients are evident in higher-rated tornadoes between intensity variables, such as maximum EF rating and ΔV. Calculations with terrain indicate some moderate correlation with intensity variables and all weak correlations with damage variables. The moderate terrain correlations consist of only cases in which the radar scanned mesocyclone-level winds, so tornado-level winds examined by radar show only weak correlations with terrain.