Cluster of supercells with torrential rain and flooding in Palermo, Italy – Oct 11th, 2013

Numerous storms, including supercells with torrential rainfall, strong winds and hail were reported from Sicily and surrounding areas in the last hours. As disccused in several updates; update 1, update 2 and update 3, storms took place in the updated MDT risk area of Day 1 Outlook 11/10/2013, embedded in the large convective cluster which was slowly trailing across northern Sicily. Torrential rainfall with slow moving training cells resulted in local flooding especially in the city of Palermo and surroudings.


Flooding in Palermo. Source: MeteoWeb.it


Flooding in Palermo. Source: MeteoWeb.it


Storm approaching Patti, NE Sicily. Source: GolfoDiPAtti.it

Satellite imagery showed an impressive structure of convective cluster with powerful convection with overshooting tops occuring constantly during the lifetime of the storms.


Source: EUMETSAT


Source: EUMETSAT

Radar scan showing several intense supercells on going across northern Sicily:


Source: Protezione Civile Italy

Lightning activity map when the cluster was moving over northern Sicily:


Lightinng over Sicily. Source: cirrus.meteo.noa.gr