Does anyone know if the Mangum, OK tornado was visible from Highway 34/1550 north of East Duke around 5:10pm on May 20th? I got this shot looking northeast from about 5+ miles away while stuck in the chaser congo and I'm not sure if it was the actual tornado or not. Looks quite convincing to me. It's a video still from my video I got about 30 seconds from, contrast enhanced, while looking through my video from this season tonight. The only shot I got as it was moving away before disappearing into a wall of haze and murkiness. I can't find an actual survey of this tornado that shows the beginning and end times or path length from OUN, so I'm clueless on that. Opinions welcomed from anyone that was there and distant.