ProbSevere was very useful to show a collapsing thunderstorm in central Florida.

Initially, ProbSevere ramped up from 2% to 71% within 20 minutes:

This gave me insight to further integrate the storm for severe potential.

However, on the next scan, the ProbSevere decreased to 57%:

This was followed by another decrease to 39%:

At this point, I assumed the rapid decrease in ProbSevere indicated that the storm was collapsing. Analysis of the base data suggested this as well. I decided to make a warning decision to issue a significant weather advisory (the polygon drawn on every image) for gusty winds (due to the potential collapse of the storm) and nickel size hail.

Indeed, the core did collapse on the next scan:

This demonstrates that ProbSevere might be useful not only for growing thunderstorms, but collapsing thunderstorms (and their associated risk of strong winds) as well.

Polarimetric Researcher