Two major late-season HP supercells formed along the cold front over the north Adriatic. OSMER Fossalon Doppler radar showed the presence of two mesocyclones embeded in the squall line. Conditions were favourable for supercells with strong southeasterly surface winds, surface temperatures 15-18 °C, high low level lapse rates and strong southwesterly mid-level winds.

Several stormchasers captured impressive photos of storm structure in these HP supercells. Take a look at the images below.

Photo: Samantha S.

Photo: Igor Skof.

Photo: Matej Damjanić.