MESOSCALE DISCUSSION 1011
   NWS STORM PREDICTION CENTER NORMAN OK
   0927 PM CDT SAT MAY 28 2011
   
   AREAS AFFECTED...PORTIONS ERN CO...EXTREME WRN KS.
   
   CONCERNING...SEVERE POTENTIAL...WATCH UNLIKELY 
   
   VALID 290227Z - 290430Z
   
   RAPID TSTM DEVELOPMENT NOTED PAST HALF HOUR ON EITHER SIDE OF PALMER
   RIDGE NW-SW OF LIC.  ADDITIONAL DEVELOPMENT IS POSSIBLE SWWD TOWARD
   STG SFC LOW BETWEEN TAD-PUB...AND NNEWD TOWARD AKO.  OCNL LARGE HAIL
   AND STG/DAMAGING GUSTS MAY OCCUR.
   
   INCREASINGLY MOIST 850-MB STREAMLINES POINT DIRECTLY INTO THIS AREA
   FROM KS...WITH ACTUAL PARCEL TRAJECTORIES LIKELY RISING ABOVE 850-MB
   LEVEL AND REMAINING ABOVE RELATIVELY STABLE SFC LAYER AS THEY
   PROCEED WWD OVER ERN CO.  PROJECTED STORM MOTIONS YIELD
   STORM-RELATIVE INFLOW 35-45 KT...WHICH FOR A FEW HOURS MAY
   COUNTERBALANCE EFFECTS OF INCREASING CINH WITH EWD EXTENT EVIDENT IN
   DDC RAOB AND RUC SOUNDINGS.  MODIFIED FCST SOUNDINGS SUGGEST INFLOW
   LAYER BETWEEN 600-700 MB...WITH EFFECTIVE SHEAR MAGNITUDES 50-60 KT
   SUPPORTING STORM-SCALE ROTATION AND ACCORDINGLY AUGMENTED HAIL
   POTENTIAL.  RELATIVELY DRY LAYER BENEATH ELEVATED INFLOW REGION ALSO
   MAY SUPPORT STG/ISOLATED DAMAGING GUSTS TO PENETRATE SHALLOW LAYER
   OF DIABATIC COOLING NEAR SFC...ESPECIALLY IF UPSCALE GROWTH OF
   CLUSTER CAN YIELD AGGREGATE COLD POOL.
   
   ..EDWARDS.. 05/29/2011
   
   
   ATTN...WFO...DDC...GLD...PUB...BOU...
   
   LAT...LON   38350421 39280413 40100336 39750184 38140176 38080370
               38350421