The day of my first and only Southern Plains chase, that made me swear off it forever. 1,200 mile, 17-hour (each way) marathon round trip to stare into murk toward what I knew was a supercell updraft base crossing US 62 just west of me (between Gould and Hollis, OK) but I couldn't see any definition or detail in the clouds at all. Then got trapped in a parade of hundreds of other cars all stuck hopelessly behind the storm.
Part of my mistake was, due to paucity of data availability for my carrier in the area, I assumed the day was still going to play out as originally anticipated (basically 4/27/11 but in the Southern Plains) and expected the storm would rapidly produce a tornado and maintain it on the ground for a long time, then cycle and produce another.