Original scientific paper
FLASH-FLOOD IN PULA IN THE NIGHT BETWEEN 24 AND 25 SEPTEMBER 2010
D. Mazzocco Drvar
; Meteorological and Hydrological Service, Zagreb, Croatia
Plačko-Vršnak, D.
; Meteorological and Hydrological Service, Zagreb, Croatia
Tudor, M.
; Meteorological and Hydrological Service, Zagreb, Croatia
Trošić, T
; Meteorological and Hydrological Service, Zagreb, Croatia
Abstract
A flash-flood event in the western part of Croatia during the night between 24 and 25 September 2010 is analyzed by means of satellite, radar, lightning and rain-gauge measurements and NWP model data. A relatively rare positioning of two Mediterranean cyclones induced a strong convergence zone in the Northern Adriatic. One of the heavy precipitation episodes stroke the town of Pula and the surrounding Istrian inland resulting in 176 mm of rain in less than 7 hours, the highest daily amount ever measured in Pula. Operational 8 km resolution hydrostatic ALADIN model forecast satisfyingly the existence of twin cyclones and precipitation maximum over the sea. The processes that led to the development of the secondary maximum inland were explored using the 2 km resolution non-hydrostatic ALADIN model.
Keywords
flash flood; Istria; convective precipitation; convergence; Mediterranean cyclones; ALADIN
Hrčak ID:
115909
URI
Publication date:
28.1.2014.
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