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Mesoscale Discussion 1179
MD 1179 graphic
   
   MESOSCALE DISCUSSION 1179
   NWS STORM PREDICTION CENTER NORMAN OK
   1246 PM CDT SUN JUN 01 2003
   
   AREAS AFFECTED...SW NEB...WRN KS...ERN CO
   
   CONCERNING...SEVERE THUNDERSTORM POTENTIAL 
   
   VALID 011746Z - 011945Z
   
   CONVECTIVE TRENDS ARE BEING MONITORED FOR POSSIBILITY OF WW. 
   ISOLATED SEVERE STORMS ARE POSSIBLE ACROSS THE CENTRAL HIGH PLAINS
   AS EARLY AS 20Z.
   
   LOW-LEVEL CONVERGENCE/DESTABILIZATION IS BECOMING FOCUSED NEAR
   SURFACE TROUGH ALONG THE KANSAS/COLORADO BORDER.  BOUNDARY LAYER
   WITH UPPER 50S SURFACE DEW POINTS IS WARMING THROUGH THE 70S/LOWER
   80S...AND  BECOMING WEAK TO MODERATELY UNSTABLE.  MEAN MIXED LAYER
   CAPE AROUND 1500 J/KG APPEARS LIKELY WITHIN THE NEXT FEW
   HOURS...WHICH WILL SUPPORT INCREASING CONVECTIVE DEVELOPMENT AS
   MID-LEVEL CONVECTIVE INHIBITION WEAKENS.  MID/UPPER FORCING FOR
   UPWARD VERTICAL MOTION ...ASSOCIATED WITH DIFLUENT/DIVERGENT FLOW
   FIELD AHEAD OF SHARP SHORT WAVE TROUGH CROSSING THE NORTHERN/CENTRAL
   ROCKIES...WILL GRADUALLY OVERSPREAD THE CENTRAL HIGH
   PLAINS...ENHANCING CONVECTIVE DEVELOPMENT.
   
   VERTICAL SHEAR PROFILES ARE RATHER WEAK...BUT THERMODYNAMIC
   ENVIRONMENT IS SUPPORTIVE OF AT LEAST MARGINALLY SEVERE HAIL IN MOST
   VIGOROUS STORMS.  ISOLATED DOWNBURSTS ARE ALSO POSSIBLE...BEFORE
   ACTIVITY EVOLVES INTO LARGER CONVECTIVE CLUSTER LATE THIS AFTERNOON.
   
   ..KERR.. 06/01/2003
   
   
   ATTN...WFO...LBF...DDC...GLD...PUB...BOU...
   
   39560233 40460219 40580107 40090041 39110105 38320108
   37700143 37310197 38340225 
   
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