July 12, 2002 - North Central Oklahoma 
 

 
Chase Account by: Jonathan Garner
 
Brian Thalken and I made it to our target near Pratt, Kansas by 4:45 pm, and observed what appeared to be a monster cell to our southwest near the Oklahoma/Kansas border. So we went south toward Kiowa, KS, and were anticipating an intense updraft on the southern side of the cell. However, when we entered Oklahoma at 5:45, the updraft base was elevated and the cell was outflow dominant. We stopped to get a few pictures near Cherokee, OK, but it was obvious that this cell had little potential besides producing strong outflow. So we went east into Grant County, Oklahoma and made it to Lamont, Oklahoma in time to see a new cell rapidly intensify (~ 7:40 pm). This cell had a blocky wall cloud, with a rear-flank precip core to the west of the updraft, and possibly a clear slot. Within 10-minutes the wall cloud began sucking in large amounts of scud from the east, and the rain-free base widened quite a bit (we were less than a mile from this wall cloud). However, a strong outflow boundary produced from a storm off to the east made it to our location, and ruined any tornadic potential this cell might of had. So we basically ended the chase in Lamont and went back north into Kansas on I-35. As we approached the KS/OK border again, we stopped to get a few pictures of a tremendous display of lightning and mammatus underneath an expansive back-sheared anvil.