To do so, we analyze polarimetric radar data and environmental and/or high-resolution model soundings from cases of large accumulations of small hail in different geographic regions, including Colorado, Alabama, Florida, Indiana, New Mexico, and Texas. Common low-level radar characteristics found in these cases include large reflectivity factor (> 70 dBz), large differential attenuation, and anomalously large specific differential phase (>10 deg km-1). Electromagnetic scattering calculations reveal that such features can be explained by large concentrations of sub-severe hail. Further, these storms tend to be weakly tornadic or nontornadic and have compact forward flank precipitation echoes. Several of the cases exhibited midlevel minima in storm-relative flow in or near the prime hail growth region (-10 to -30 °C). In a companion study (Lebo and Kumjian, this conference), high-resolution simulations using a state-of-the-art bin microphysics model are conducted to examine the impact of midlevel storm-relative flow weaknesses in the context of different CAPE/shear environments on the resulting storm structure and hail production.