THE ABUNDANT PRECIPITATIONS IN THE PERIOD 22nd 27th OF JULY, 2008, FROM SUCEAVA COUNTY AND THE SURROUNDING AREAS. CAUSES AND CONSEQUENCES

 Diana Bostan, D. Mihăilă, I. Tănasă

 

                    ABSTRACT. - The abundant precipitations in the period 22nd 27th of july, 2008, from Suceava county and the surrounding areas. Causes and consequences. Between 23-27.07.2008, on the territory of Suceava county and the neighbouring areas were registered prominent quantities of precipitations which produced exceptional flash floods in the interval 24.07 5.08.2008. The synoptic context which determined the abundant precipitations consisted in the presence of a coupling between a nucleus come from the Arabic Depression and a cold nucleus of altitude which persisted for a few days and had a retrograde evolution, from the north of the Black Sea to the north of Moldavia and Bucovina.The synoptic and orographic conditions from the specified areas led to large quantities of precipitations which fell in a short time in different stages. In a first stage, in the western side of Suceava county (in the hydrographic basin of the river Moldavia) fell abundant precipitations. After about 24 hours, this time in the east of the county, another wave of precipitations, even more abundant quantitatively, affected especially the hydrographic basins of  Suceava and the superior Siret. The very large quantities of precipitations from the interval analysed (which culminated the value of 431,9l/m2 in Vicovu de Jos), broke out the apparition in the field of at least two exceptional flash floods, with a historical character. The evolution of the hydrometeorological events from these habitats, the production, in only 2-3 days, of two successive, extremely violent flash floods determined uncommon material losses.

 

                Key words: torrential precipitations, flash floods, material losses.

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