Analysis of the Synoptic Conditions of the Extreme Rainfall Heights of 2014 in Thessaloniki

The year of 2014 is characterized by particularly high rainfall totals in the area of Thessaloniki on an annual, seasonal, monthly as well as daily basis where several maxima have been exceeded. In the present study, an attempt is made to analyze the synoptic atmospheric conditions during the year of interest. The analysis of the atmospheric circulation conditions showed that depending on the season and the atmospheric level, 500 or 1000 hPa, the intense precipitation conditions of the examined year are due to the increased frequency of some cyclonic types (C, Cne, Cwsw) and to the increased intensity of daily precipitation of the same cyclonic types or to the combination of these factors. It should be highlighted that the mechanisms of the intense precipitation during winter are different from the other seasons.