الأحوال الجوية المرافقة للفيضان المفاجئ الذي أثر على مدينة العقبة يوم 29 3 2015

Abstract EN

The aim of this research is to study and analysis of synoptic conditions associated with Flash flood, which affected the city of Aqaba on 29 March 2015 by analyzing weather maps surface and upper (1000 and 500 hpas), in addition to the analysis of Tephegram Charts based on satellite readings, in order to determine the State of the atmosphere and the characteristics of air masses in terms of the change in the values of temperature, pressure, dew, speed and wind direction during the flooding.

Where the study found that air situation associated with the occurrence of Jordan under the influence of the khamsin, depressions, which converge The Red Sea Trough, combined with cold upper Trough atmosphere, are the most appropriate air position for the evolution of unstable air is highly effective and accompanied by Thunder and Rain storms following flash flooding in Aqaba, and the impact of flash floods which hit Aqaba topography of the region surrounding the city, and particularly steep valleys directly towards the city, specifically the valleys of the Wadi Yutem and Mubarak basin as the most important valleys causing flooding due to the nature of rain precipitation system characterized by concentration, which develops about devastating floods sometimes large quantity of rains on the headwaters and the flood peak arrives in a short period of time.