1. Institute of Atmospheric Sciences and Climate (ISAC), National Research Council of Italy (CNR); Bologna Italy
2. Department of Meteorology; University of Reading; UK
3. Department of Physics; University of Milan; Italy
4. ARPA Friuli Venezia Giulia - OSMER; Visco (Udine) Italy
5. ARPA Veneto, Servizio Meteorologico; Teolo (Padua) Italy