Data Analysis Table 1 lists the hail events which were used for this study. All of the cases are from northern Utah using the KMTX WSR-88D on Promontory Point. Various parameters associated with the 5 hail days analyzed in this study. The maximum speed difference is the speed at 400 mb minus the speed at 850 mb. Date Volume Coverage Pattern No. of cells examined No. of sev.
Severe reports are in bold type.
Table 2 shows the attributes of all the cells in the study. This is considered a miss. A possible false alarm occurred with cell 91 on 21 June but it passed over the edge of a small town bringing into question the accuracy of the ground truth. The HDA also issued an apparent false alarm for Cell 40 on 18 June 1997. A vertical cross-section through the cell Figure 1 shows that the bottom of the 0.5 deg beam is 14,000 ft above the radar.