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Methods, algorithms, and programs of automated radar identification of convective cells in cumulonimbus clouds are considered, that provides the ability to measure the parameters of convective cells, to plot the graphs of the time course of parameters, to compute the direction and speed of the movement, to assess their thunderstorm and hail danger, and to recognize the categories of target objects for the prevention of hail damage and meteorological provision of aviation.

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Results are considered of study of climate global warming effects on hail climatology and on technique of estimation of physical efficiency of hail protection taking account of the region hail danger trend. It is found that during last 30 years, occurrence frequency of hail and the number of heavy hailstorms in the mountainous areas of the Northern Caucasus decreased, on average, by a factor of 1.5-2, and in the foothill areas increased by 15-20%. It is shown that efficiency of hail protection works should be estimated taking into account the hail danger trend for each region.