After warning the cell multiple times, we finally started to get reports to verify our thinking.
We had 1″ hail reports at 3:25p and 4:15p and a 1.25″ report at 3:28p, all in Pennington Co.
Our first warning was issued at 3:02p based on ProbSevere, a few lightning jumps and DVIL with little help from Convective Outlook (only general risk).
-BT and Charley