An analysis of diurnal variations of heavy hourly precipitation in Kraków using a classification of circulation types over southern Poland

A pattern with a single heavy rainfall maximum was identified. A variety of diurnal patterns of amplitude and time of maximum rainfall emerged depending on the atmospheric circulation determining the thermal and humidity properties of air masses. The paper was based on hourly rainfall records in Kraków and on a daily catalogue of atmospheric circulation types in southern Poland spanning the period 1886-2007.