Radar echoes and soundings from Jinan and its vicinity are used in investigaiting the echo features from hail bearing cloud and mean adiabatic water content at 700 and 500 hPa,separately,thereby deriving these contents and the comprehensive parameter BB values for echo features indicative of different phases of such cloud,in May,June and September 200 km around Jinan,whereupon the discriminating basis is gained alongside a calculation formula for the bullets used in the operation.