A day of big hopes was April 30th. Great moisture, high CAPE and strong deep layer shear would set the stage for supercell development. We started the day in Wichita Falls, Texas only to move across the Red River into southern Oklahoma. It appeared that storms would form along a cold front and intensify as they crossed the river into Oklahoma. We played with a cell near Randlett, OK initially, which never did much. It was severe, but never looked like a threat to produce tornadoes. Eventually a couple of cells formed in front of the cold front and rapidly became severe. One storm near Byers, Texas dropped a significant tornado just across the Red River from us. We figured since the storm was moving northeast at 35 mph that we would stay on the Oklahoma side of the river (since there are FEW crossings!) and wait for the storm and tornado to approach. To our much surprise the tornado dissipated and the supercell died as it came to us! There was NO reason for the NEW supercell to abruptly diminish! However it did, but not before we were able to get some photos of the structure and of the tornado in the distance. It was only about 8 miles away when it’s demise occurred. Fun day, frustrating day, but we all enjoyed ourselves!