MESOSCALE DISCUSSION 0709
   NWS STORM PREDICTION CENTER NORMAN OK
   0627 PM CDT SUN MAY 19 2013
   
   AREAS AFFECTED...SERN KS / NERN AND CNTRL OK
   
   CONCERNING...TORNADO WATCH 181...182...
   
   VALID 192327Z - 200030Z
   
   THE SEVERE WEATHER THREAT FOR TORNADO WATCH 181...182...CONTINUES.
   
   SUMMARY...INTENSE TORNADO THREAT WILL CONTINUE OVER CNTRL OK
   EXTENDING NEWD INTO NERN OK AND SERN KS.
   
   DISCUSSION...RADAR MOSAIC SHOWS SEVERAL DISCRETE SUPERCELLS FROM
   SERN KS ON THE SRN END OF A SQUALL LINE WITH ANOTHER CLUSTER OF
   DISCRETE SUPERCELLS FROM 35 MI W OF TUL...5 NNW CQB...AND 25 ESE OF
   OKC.  KTLX VWP SHOWED A PRONOUNCED SICKLE SHAPED HODOGRAPH /350
   M2/S2 0-1 KM SRH/ WITH A MARKED INCREASE IN LOW LEVEL SHEAR PRIOR TO
   THE PASSAGE OF THE NOW CONFIRMED TORNADIC SUPERCELL.  VERY INTENSE
   ROTATIONAL VELOCITIES WITH THE CLEVELAND COUNTY/POTTAWATOMIE COUNTY
   STORM...COMBINED WITH A FAVORABLE CONVECTIVE MODE AND NEAR-STORM
   ENVIRONMENT...WILL LIKELY YIELD A HIGH PROBABILITY FOR CONTINUED
   CYCLING OF INTENSE TORNADOES DOWNSTREAM OF THIS STORM.  THE 105 KT
   ROTATIONAL VELOCITY AT 0.5 DEG AS OF 2320Z...IS HIGHLY INDICATIVE OF
   A VERY INTENSE/POTENTIALLY VIOLENT TORNADO WITH THIS STORM.  
   
   FARTHER NE OVER NERN OK...KINX VWP SHOWS 50 KT SLY FLOW AT 1 KM AGL.
   ALTHOUGH THE HODOGRAPH STRUCTURE IS NOT AS IMPRESSIVE AS KTLX...300
   M2/S2 0-1 KM SRH WILL MORE THAN SUPPORT THE THREAT FOR LONG-LIVED
   SUPERCELLS CAPABLE OF DAMAGING TORNADOES.
   
   ..SMITH.. 05/19/2013
   
   
   ATTN...WFO...TSA...ICT...OUN...
   
   LAT...LON   37389685 36819737 35309742 35239675 35289634 36089577
               37159576 37489617 37389685