MESOSCALE DISCUSSION 1530
   NWS STORM PREDICTION CENTER NORMAN OK
   0605 AM CDT SAT JUN 28 2003
   
   AREAS AFFECTED...PORTIONS OF ERN KS...FAR WRN MO...AND FAR NRN OK
   
   CONCERNING...SEVERE THUNDERSTORM POTENTIAL 
   
   VALID 281105Z - 281230Z
   
   ISOLATED HAIL WILL BE POSSIBLE DURING THE NEXT 2-3 HOURS ACROSS
   PORTIONS OF ERN KS INTO FAR WRN MO AND FAR NRN OK. WW NOT
   ANTICIPATED.
   
   OBJECTIVE ANALYSES SHOW LOW-LEVEL WAA AND MOISTURE ADVECTION ON THE
   NOSE OF A 40 KT SWLY LLJ WHICH EXTENDS FROM SRN TO NERN KS.  THIS
   ADVECTION COMBINED WITH INCREASING LARGE SCALE ASCENT AND DEEP LAYER
   SHEAR WITH A SHORT WAVE TRACKING SEWD THROUGH NWRN MO ATTM IS AIDING
   IN CONVECTIVE DEVELOPMENT OVER NERN KS SWWD TO STAFFORD COUNTY.  THE
   ENVIRONMENT WILL REMAIN CONDUCIVE FOR ADDITIONAL CONVECTIVE
   DEVELOPMENT DURING THE NEXT 2-3 HOURS...PRIOR TO THE WEAKENING OF
   THE LLJ AND PASSAGE OF THE SHORT WAVE TROUGH.  IN ADDITION...CURRENT
   STORMS ARE DEVELOPING ON THE EDGE OF AN INSTABILITY AXIS WITH A SEWD
   MOVEMENT TAKING THE ACTIVITY INTO ERN KS/WRN MO AND AWAY FROM THE
   INSTABILITY.  THUS... A WW WILL NOT BE REQUIRED ATTM.
   
   ..PETERS.. 06/28/2003
   
   
   ATTN...WFO...SGF...EAX...TSA...TOP...ICT...OUN...DDC...
   
   39169701 39529609 39439505 38989426 37639397 36649659
   37439896