Monthly Archives: September 2013

Sevegliano (FVG) HP supercell, Sept 10, 2013

Day 3 of the active pattern. Still under a strong mid-level jet with 50 kt 500 mbar winds and another shortwave passing through, creating a very favourable low level wind pattern with strong backing surface winds. With SST still around 23-24 °C there was strong WAA in the Friuli and Veneto plains. Temperatures hovered around […]

Porpetto (FVG) supercell, Sept 9, 2013

September 9th was the second day of a 3-day active pattern over the northern Adriatic with supercells forming in NE Italy plains. Conditions were favourable, with a 40 kt SW mid-level jet and up to 1500 J/kg CAPE. A strengthening southeasterly low-level wind would acompany a shortwave passage in the evening, increasing shear and helicity. […]