The influence of synoptic situations on the occurrence of days with thunderstorms during a year in the territory of Poland

Abstract

The study concerns research into the connection between synoptic situations, analysed over the area of Central and eastern Europe, and the occurrence of days with thunderstorms in the territory of Poland. The analysis of thunderstorm activity in connection with synoptic situations was carried out in seasons of storm activity and thunderstorm regions set apart in the study. The analysis of lower synoptic maps for the researched period 1971–2000 made it possible to isolate seven types of synoptic situations characteristic of days with thunderstorms over the area of Poland. During the research based on the use of correlation calculations and logistic regression, a determination was made of the influence of various synoptic situation types on thunderstorm activity. An indication was made of two types of synoptic situations that are particularly conducive to the appearance of days with thunderstorms, of which one type influences the occurrence of particularly fierce and dangerous thunderstorms. Copyright © 2006 Royal Meteorological Society.