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The climatology of hot days and extremely hot spells on the territory of Bulgaria has been studied on the basis of daily data for maximum air temperature during the warm half-year in the period 1961–2019 from 115 meteorological stations of the National Institute of Meteorology and Hydrology (NIMH). The empirical distributions of daily maximum air temperatures by selected stations representative of the non-mountainous regions of the country (below 1000 m altitude) have been investigated to determine the correspondi...

The aim of the study is to present variation of days with hail precipitation in different regions of Bulgaria and seasonal synoptic classification of such type of extreme events. Examined period is 1991 – 2020. Time-space distributions of days with hail events, detected in at least one station from meteorological network of the National Institute of Meteorology and Hydrology are presented, as well as the regime of wide-spread hail events. The hail precipitation which are detected in at least 4 districts in Bulgari...