This was part of a very strange storm: a south-southwestward right-moving member of a supercell split, in northwesterly mean flow, with two rear flanks, and splitting for a second time at the time of the photo. It was a fascinating process to witness! A large amount of rusty dust was being entrained in the updraft, thus the reddish tinge in the lower middle. The balcony of convection in the middle was rolling over on itself as the towers shot up through it.
2 SSE Durham OK (20 Apr 89) Looking ESE
35.8132, -99.9078