National Geographic : 2013 Nov
40 40 270 66 HIST 81 U.S.HWY.81S.REFORMATORYRD.S.BRANDLEYRD.S.FORTRENORD.S.HEASTONRD. RENO RD. E. S.EVANSRD.S.MANNINGRD.S.BANNERRD. E. JENSEN RD. S.RADIORD.ALFADALEST.S.COUNTRYCLUBRD.S.AIRPORTRD. SW 29TH ST. SW 15TH ST. 15TH ST. SW S.CHOCTAWAVE.2.6miles Tornado touches down Tornado dissipates To Oklahoma City 20 mi (32 km) Extent of Tornado Damage Path of the Tornado** OKC West Livestock Market TWISTEX Team Chase Route RENO RD. W. JENSEN RD. W. S.CHILESRD. REUTER RD. E. Union City EL RENO REGIONAL AIRPORT Conoco station El Reno 6:08:45 6:13:45 6:04:30 P.M. 6:12 6:19:28 6:22:18 6:16 6:03:49 P.M. 6:27 6:23 6:43 6:09 6:19 6:18 6:15 Wind Rain 1 Mile 6:19 as it crosses highway 81, the twister veers to the northeast, still expanding. surface winds feeding the storm uproot trees well beyond the base of the funnel. 6:19:28 the team pauses briefly at the highway 81 intersection, empty of traffic because of closures. the tornado suddenly speeds up. “what a beast,” young says. 6:23 the rain parts, revealing the main vortex. a few minutes later, wind speeds approach 300 miles an hour as the tornado’s diameter maxes out. 6:22:18 aware of their perilous situation, samaras urges young to keep moving. a driver just ahead of them on the road is the last to see them before they disappear in the storm. 6:27 steered by the rotating parent storm, the twister makes a loop north of i-40 and heads east. having spent 40 minutes on the ground, it finally dissipates at 6:43 p.m . 6:23:32 as radar imagery later shows, one of several violent subvortices swings around the main vortex and collides with the team’s car, flinging it east into a field just past radio road. 0 yards 200 0m 200 Su bvor texPathS.RADIORD. REUTER RD. E . Destroyed vehicle and Tim Samaras recovered here Subvortex carried TWISTEX vehicle nearly 700 yards Parent tornado path Impact site: Carl Young and Paul Samaras recovered here 6:23:32 6:25 Martin GaMaChe, nGM staff sourCes: eriK fox; Gabe GarfielD, national weather serviCe anD CooPerative institute for MesosCale MeteoroloGiCal stuDies; tiM Marshall, haaG Global; Dan robinson, storM hiGhway; Joshua wurMan, Center for severe weather researCh Between 6:24 and 6:26 p.m. the tornado was at its widest: 2.6 miles, with winds approaching 300 miles an hour. Headwinds of at least 70 miles an hour slow the team’s flight. Heavy rain on the storm’s north flank blocks the team’s view of the tornado.