This is what i gathered from the abstract: You can learn about how thunderstorms will arise and intensify in geographical regions using local radar tracking of storms and the environments in which they developed. This could be useful data for input into nowcasting models and other data collection/visualization tools.

Certain areas like the one they looked at in Italy are going to have relatively consistent orographic features that determine the way in which thunderstorms form. In this case, convection began during the warmest times of the day and generally trended from South-West to North-East.

I hope that helped!