Wednesday, April 21, 1999
Tim Marshall & Carson Eads
Carson Eads and Tim Marshall teamed up for the first time this year and
intercepted a tornadic HP supercell northwest of Enid, Oklahoma yesterday.
Our initial target was Oklahoma City. We arrived there around 3:30pm
and heard that the moderate risk was dropped to a slight risk for the area.
Robert Satkus -- Chased with Bobby Payne today and our target area was Enid. I new the cap was very strong, but I had a gut feeling ( not from anything I ate! ) things would happen today . We went north from El Reno hanging out in the Enid area for a few hours . There was an area of cu to our north that would occasionally exhibit some vertical development, but nothing to exciting. We decided to head a little further north, stopping between Nash and Pond Creek. Several small, highly sheared towers developed to our north and overhead. They persisted and slowly increased. We headed to Pond Creek as the towers gre into a large multicellular cluster. There were a few towers further sw, but they seemed to be having problems with the cap. We headed east towards I-35 to intercept the intial storms as they headed into Ks, but the northern cells quickly weakend. We could now see an anvil spreading rapidly towards us from the sw. It was razor sharp with overturning convection/anvil knuckles. We worked our way towards Hillsdale then south to Carrier. The storm structure seemed odd, with a linear base, but it didn't seem to be outflow dominant. We stopped in Carrier then decided to drop south a few miles, thinking there may be new development along the flank, as this linear base had us a little confused. Bobby and I stopped to shoot some video of the photogenic storm, when rotation rapidly developed to out nw. I Was amazed at how quickly it formed. It was very strong. Our inflow winds increased to near 40mph. We could see a funnel and rapidly rotating rain curtains at the surface I figured this was probably a tornado at this time. A chaser friend of mine, Val Castor, has amazing video of the spinup blowing the roof off a structure at a farm sight from less than a mile away. As the funnel began to look better, Bobby and I went north towards Carrier. The funnel gradually worked its way down wih a cone shaped appearance. A debris cloud was visible. We were about 1 mile ese of it with good contrast, when the storm unleashed all kinds of rain and hail between us and the tornado. I couldn't believe how rapidly this process occured. We let the core pass to our north, then headed north, stopped at town by debris across the road. We stopped to shoot video with storng winds and 2.00" hail beating down on us. We tried to follow the storm east, but roadblocks cost us time as the authorities tried to keep people from driving into the rain wrapped tornado.... a good idea but the tornado had long since passed these areas. We received word of a new storm rapidly forming to our sw near Okeene. We gladly headd that way and by the time we got to Waukomis, a tornado warning had been issued. We saw a large wall cloud near Drummond, turned back towards Enid as the storm passed over town with 1.75" hail and 83mph winds just north of Enid. A tornado was reported west of Vance AFB, but it didn't make sense with what was going on. We followed the storm east for awhile, but chasing an HP after dark is too risk so we called it a night. The Carrier tornado was rated F2 with a 7 mile long path.
Tim Vasquez & Gene Rhoden -- Gene Rhoden and I had a busy week so far. Wednesday we arrived only in time to see the occlusion of the Carrier storm (no funnel); we got good storm structure & flanking line video from the SSE up to the time of the tornado. Eastward from Enid at close range we saw a series of mesos and wraps (and one funnel cloud) eastward from Enid, ending with a nighttime HP that crossed I-35 and blew over two semis at the 207 mile marker (all we saw was the RFD surging across the highway). Lightning had subsided dramatically by that time, and we called it quits at 9:45.
Roger Hill --
I left the Denver area at 5 AM to head for my target which was the Alva,
OK area. The dryline was expected to stretch from near Alva south to
Clinton. When I arrived in the Alva area at 3 PM there were no cu to be
seen, only cirrus (I also heard Mr Roboto's comment of NEARLY IMPOSSIBLE
TO BREAK THE CAP). We decided to get into the warm, moist sector and
headed east and arrived in Pond Creek around 4:45, just in time to see a
line of tcu building up nearly overhead. Temp and Td were 78/69, with a
southeast wind at g23. As this line blossomed into two cb, they moved
northeast towards the Kansas state line. Based on the first two cells and
their appearance, I though it could get interesting soon. Off to my
southwest I saw another cell going up (southwest of Enid). NWS Norman
issued SVR for this cell about 6 PM.
Jeff Johncox and I got a very late start this day, because I got stuck at work unusually late. We missed the Carrier tornado that occured approximately around 6:45-7 pm, but we intercepted another tornadic storm just east of Enid, Okla. at around 8:20 pm.
Did you chase on this day? Send in your account and we'll add it! Selected chase accounts will be published in STORM TRACK Magazine (with your permission of course).