We spent the day in Oklahoma due to not wanting to go to far as we're packing up to move back home on Monday. Left Norman at 2.15 and headed down towards Ada. Saw the first signs of development there at about 4, then moved ahead of the line and waited in Allen as we watched two cells explode as they passed overhead. Followed them along OK-1 and came across a tornado about 15 miles west of McAlester. It was on the ground for about 15 minutes before decaying in the region of McAlester. Very strange event, no wall cloud, no obvious rotation, no structure to the cell (it was still just a mound of cumulus), so it was a pleasent surprise! Tried to follow the cells on to the east but gave up as the roads got trickier. All in all a good chase! Will try and post some photos in the reports thread later.