MESOSCALE DISCUSSION 0808
   NWS STORM PREDICTION CENTER NORMAN OK
   1025 PM CDT WED MAY 18 2011
   
   AREAS AFFECTED...E CENTRAL CO AND MUCH OF KS
   
   CONCERNING...SEVERE POTENTIAL...WATCH POSSIBLE 
   
   VALID 190325Z - 190530Z
   
   LIMITED SEVERE THREAT CONTINUES ACROSS E CENTRAL CO...WITH POTENTIAL
   FOR ISOLATED HAIL EXPECTED TO EXPAND EWD INTO KS WITH TIME.  WHILE
   THREAT SHOULD REMAIN LIMITED/ISOLATED...WW MAY EVENTUALLY BE NEEDED.
   
   LATEST VAD/PROFILER DATA SHOWS AN INCREASING SLY/SSELY LOW-LEVEL JET
   ACROSS TX/KS/OK...WITH 55 KT H8 SLYS NOW INDICATED IN CENTRAL OK. 
   AS THE LOW-LEVEL JET CONTINUES INCREASING...RESULTING WARM ADVECTION
   WILL CONTINUE TO DRIVE AN EWD EXPANSION OF ELEVATED STORMS FROM ERN
   CO/WRN KS ACROSS CENTRAL AND INTO ERN KS.  WITH MID-LEVEL FLOW
   PROVIDING AMPLE SHEAR FOR UPDRAFT ORGANIZATION/ROTATION AND ELEVATED
   CAPE AROUND 1000 J/KG INDICATED...A FEW STRONGER STORMS WILL LIKELY
   BECOME CAPABLE OF PRODUCING SEVERE HAIL.  WHILE COVERAGE OF STRONGER
   STORMS -- AND THUS HAIL POTENTIAL -- SHOULD REMAIN LIMITED...WE ARE
   MONITORING FOR THE NEED FOR WW ISSUANCE ACROSS KS.
   
   ..GOSS.. 05/19/2011
   
   
   ATTN...WFO...TOP...ICT...GID...DDC...GLD...PUB...BOU...
   
   LAT...LON   37900187 37980332 38640404 39600334 39940194 39829847
               39259639 38389542 37599514 37129524 37109606 37689810
               37550008 37900187