ProbSevere achieved its highest percentage with a storm over northern Alabama that was rotating at 73%. Satellite growth rates were really strong with this storm and whether coincidence or not the ProbSevere did the best with what was easily the most dangerous storm of the day. Compared to other probsevere ratings today...it was the highest by over 20%. Below is a screen capture of the highlighted cell. Note that the actual rotation of concern was outside of the probsevere highlighted area just to the east. Included is a .gif of the progression of ProbSevere in this situation. -Jason Bourne
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