Observed two tornadoes today in SC Oklahoma, one just east of Duncan and a second north of Velma.
I saw a storm on radar near Hobart that caught my attention, and decided to go after it, owing to the fact there was still plenty of time/daylight left should the first "wave" crap out. I left OUN at 10:45 and drove to Chickasha. Took US81 south to OK19, and sat there for a while listening to the play-by-play between spotters and WX5OUN. Resisted the temptation to try and fly north to intercept the early cell along I-40 which was a nice supercell for a time. Kept myself to the game plan and gradually drifted south along US81, watching the approaching cluster of storms. Caught my first view of a base northwest of Marlow, and watched that linear storm do nothing as it moved by to the northwest. Another core was southwest of it, so I drfited south into the north side of Marlow and watched this base produce a non-rotating (but persitant) wall cloud. Eventually rain became an issue, so I moved south through town. Once on the south side of Marlow, it was obvious this storm was outflow-dominant as well, and reports of nickel to golfball hail around town began to pour over the scanner. I briefly considered heading north back to OK29 and going east to target the Marlow storm, but a report of a new storm still further southwest near Duncan got my attention.
I moved through town, and as I came to my east option (OK7), I broke free of the rain and saw a high, flat base. There was an intense precip core north of it, and while the storm itself didn't look too spectacular, I notcied it was the last in line. I moved east a few miles, then stopped to observe and shoot a bit of video. The storm was still looking like all the others; outflowish and linear. However, it was still ther last storm in the line, so I stayed with it. I got back on the road and continued east. After a mile or so I looked in the rearview and saw a rapidly rising scud bomb flowing into the RFB. I stopped, set up the tripod, and rolled video. The evolution of this was incredible to watch. Rapid rising motion was occuring all along the base of the wall cloud, and I looked almost overhead to see the eastern edge of the rotation. The mesocyclone gradually tightened, as after a few more minutes, strong rotation was noted within the wall cloud itself. Surface winds picked up dramatically, to where I had to hold my tripod to keep the vidcam from blowing over. Rotation became violent, and a large cone funnel began to descend. The RFD began to wrap around, which was filled with black-as-night precip. The funnel was over halfway down and rotating violently, as a few small tendrils tried to reach for the ground. Before I could see full condensation to the ground, the rain curtain wrapped around, completely obscuring the tornado. I packed it up and blasted east, until the rain curtains parted and I could once again see a large cone tornado (actually it looked like a Hershey's Kiss). I couldn't see condensation to the ground, but based on the violent rotation, persistence, and all the rain around it, I assumed it was a tornado the entire time. As I pulled over to set up the tripod after it reappeared, it finally condensed fully to the ground, in a classic "SKYWARN" logo tornado shape. It rapidly roped out in the "vaporized" style, as the next mesocyclone strengthened east of it. I moved east and stopped again near Velma. The wall cloud/lowering looked kind of ragged, but had chaotic motions. Within a few minutes a large cone funnel developed and dipped halfway to the ground. It persisted, and came about 3/4 of the way down, as pieces of scud were lifted off the ground and pulled into the funnel. This tornado persisted for a few minutes, until the RFD crashed in, wrapping the tornado in precip. I could barely make out the shrinking funnel within the rotating rain curtains as the tornado dissipated. During the second tornado I ran into Jeremy Wilson and Aaron Hughes.
After the second tornado ended, I flew east on OK7 to OK76, then went north. South of Pernell I ran into other chasers who were braver than I, as they headed north into the rotation while I turned around and headed back south. I was blasted with RFD as I heard a report of a tornado west of Pernell. I drove south until I got away from the intense RFD winds (took both hands to keep the car on the road at speed), then stopped and turned around to face north. I never saw the tornado. I turned back south and continued back to OK7, where I once again blasted east to I-35, all the while slowly losing the storm. My miscalculation and subsequent "escape" south of Pernell had been a fatal navigational error; I never coulld get back in front of it and, despite knowing it would continue for several hours, I let it go to concentrate on a new storm west of Pauls Valley. This storm was ingesting the previous stale air from the first one, and never could get its act together. After being delayed just north of Pauls Valley by an accident (which you'll see shots of on KOCO-TV because they rolled up on it), I headed home.
A great way to get on the board in 2006. I'm miffed I let the storm get away, but happy I was able to observe a few tornadoes before it did. There was no tornado warning on this thing the entire time I was seeing tornadoes. I tried to call in the rapid rotation near Duncan just prior to the first tornado, but of course my phone had no coverage. I will be submitting a report and video to OUN tomorrow.
Did it all while driving with one hand, LOL. My car kept popping out of 5th gear all day, so I had to hold it in. That made for a hectic chase.