MESOSCALE DISCUSSION 0126
   NWS STORM PREDICTION CENTER NORMAN OK
   0240 PM CST WED FEB 18 2009
   
   AREAS AFFECTED...WRN AND CNTRL WV
   
   CONCERNING...SEVERE POTENTIAL...WATCH UNLIKELY 
   
   VALID 182040Z - 182215Z
   
   THE THREAT FOR ISOLATED SEVERE STORMS CAPABLE OF DAMAGING WINDS AND
   HAIL IS EXPECTED TO DEVELOP E OF WW 23 BY 21Z.  AN ADDITIONAL WW IS
   NOT CURRENTLY ANTICIPATED IN THIS AREA.
   
   AS OF 2030Z...REGIONAL RADAR IMAGERY INDICATES A WSW-ENE ORIENTED
   BROKEN BAND OF TSTMS FROM LEE TO JOHNSON COUNTIES IN NERN KY MOVING
   270/45 KT.  20Z RUC OBJECTIVE FIELDS SUGGESTS THAT THIS CLUSTER OF
   TSTMS IS ON NERN EDGE OF PRIMARY INSTABILITY AXIS WHICH IS
   DEVELOPING EWD/NEWD ACROSS WV.  WHILE THE OVERALL MAGNITUDE OF
   INSTABILITY IS SMALL /MLCAPE OF A COUPLE HUNDRED J PER KG/ IT IS
   SUFFICIENT TO SUSTAIN ONGOING STORMS GIVEN STEEP LOW-LEVEL LAPSE
   RATES AND FORCING FOR ASCENT ATTENDANT TO SHORT WAVE TROUGH MOVING
   INTO THE UPPER OH VALLEY.
   
   AREA VWPS CONTINUE TO INDICATE VERY STRONG AMBIENT SHEAR WITH WLY
   WINDS AT 50 KT AROUND 1 KM AGL.  AS SUCH...ENVIRONMENT WILL REMAIN
   SUPPORTIVE FOR THE MAINTENANCE OF ONGOING STORMS INTO WRN WV BY 21Z.
   LOCALLY DAMAGING WIND GUSTS AND SOME HAIL WILL BE THE PRIMARY SEVERE
   THREATS WITH THE MOST INTENSE STORMS.
   
   ..MEAD.. 02/18/2009
   
   
   ATTN...WFO...RNK...RLX...JKL...
   
   LAT...LON   38168257 38658241 39078174 38838097 38278071 37858084
               37378136 37308177 38168257