Cumulative rainfall recorded in the hourly interval between 5 p.m. and 9 p.m. was 265 mm
The disturbance that has been concentrated in the areas of the Marche Apennines in recent hours has caused numerous severe ground effects such as landslides and stream flooding. Data recorded by the rainfall monitoring systems of the national rainfall network that CNR-Irpi imports on an hourly basis show that in the afternoon-evening of Thursday, Sept. 15, the rainfall intensity recorded at the rain gauge in Cantiano (PU) was the most intense in the last 10 years. Specifically for that rain gauge, the cumulative rainfall recorded in the hourly interval between 5 p.m. and 9 p.m. was 265 mm.
The most violent hourly intensities occurred between 7 p.m. and 8 p.m. with 76mm/h, reaching a peak of 90mm/h between 8 p.m. and 9 p.m.″. Thus in a note Paola Salvati, of the Research Institute for Hydrogeological Protection of the National Research Council (CNR-Irpi). “These rainfall measures have increased the flow rates of streams and rivers that have caused extensive damage and victims in the province of Ancona,” she said.
“The Catalogue of landslide and flooding events with personal injury, carried out by Cnr-Irpi, shows that in the areas affected by the September 15 disturbance, there have been victims on several occasions due to river flooding, as was the case, for example, in 2014, when 3 victims were recorded in the territories of Senigallia and Ostra Vetere
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