Vertically integrated liquid density as an indicator of hail size

Numerous large hail events (hail diameter 3/4 inch or more) were studied across the Nashville County Warning Area (CWA) in Middle Tennessee during 1995-1998 in order to determine the relationship between Vertically Integrated Liquid (VIL) Density and hail size. Results confirm earlier studies which indicate that, in cases of large hail, there is a strong positive correlation between VIL Density and hail size. This relationship can be utilized operationally. The methodology used in deriving this comparison is provided to assist other NWS offices in developing VIL Density/hail size correlations.