MESOSCALE DISCUSSION 1327
   NWS STORM PREDICTION CENTER NORMAN OK
   0129 AM CDT FRI JUN 18 2004
   
   AREAS AFFECTED...S-CNTRL/SERN KS INTO N-CNTRL/NERN OK
   
   CONCERNING...SEVERE THUNDERSTORM WATCH 494...
   
   VALID 180629Z - 180800Z
   
   POTENTIAL FOR ISOLATED DAMAGING WINDS/LARGE HAIL IS EXPECTED TO
   SPREAD E OF KS PORTION WW BY 0700Z. CONVECTIVE TRENDS WILL CONTINUE
   TO BE MONITORED AND AN ADDITIONAL WW MAY BE REQUIRED.
   
   AS OF 0611Z...RADAR IMAGERY SHOWED LEADING EDGE OF GUST FRONT
   ASSOCIATED WITH MCS FROM ERN PORTIONS OF HARVEY/SEDGWICK/SUMNER
   COUNTIES IN S-CNTRL KS SWWD INTO LOGAN AND GRADY COUNTIES OF CNTRL
   OK. WHILE THIS GUST FRONT HAS ADVANCED AHEAD OF OK PORTION OF
   MCS...IT REMAINS NEARLY COINCIDENT WITH HIGHER REFLECTIVITIES OVER
   S-CNTRL KS...SUGGESTING MORE OF AN UPRIGHT TILT TO LEADING EDGE OF
   SYSTEM. OVER THE PAST HOUR SEVERAL GUSTS IN THE 40-50MPH RANGE HAVE
   BE REPORTED IN OBSERVATIONS OVER GRANT/GARFIELD/KINGFISHER AND LOGAN
   COUNTIES IN OK AND AT THE WICHITA AIRPORT.
   
   06Z MESOANALYSIS INDICATES QUASI-STATIONARY BOUNDARY INTERSECTING
   MCS OVER FAR S-CNTRL KS AND THEN EXTENDING EWD ROUGHLY ALONG THE
   KS/OK BORDER. LATEST RADAR TRENDS SUGGEST THAT STRONGEST STORMS ARE
   THOSE ALONG AND N OF THIS BOUNDARY WHERE OBJECTIVE FIELDS STILL
   INDICATE MLCAPES OF 1000-2000 J/KG. THOUGH LOCAL PROFILERS/VWPS SHOW
   RELATIVELY WEAK MID-LEVEL FLOW...EWD SYSTEM MOTION OF 35KTS AND
   WELL-ORGANIZED COLD POOL MAY BE SUFFICIENT TO PROMOTE ISOLATED
   DAMAGING WIND GUSTS...IN ADDITION TO MARGINALLY SEVERE HAIL.
   
   EXTRAPOLATION PLACES LEADING EDGE OF SYSTEM /S-CNTRL KS PORTION/ E
   OF WW 494 BY 0700Z. CONVECTIVE TRENDS WILL CONTINUE TO BE MONITORED
   AND A NEW WW MAY BE REQUIRED.
   
   ..MEAD.. 06/18/2004
   
   
   ATTN...WFO...SGF...EAX...TSA...TOP...ICT...OUN...DDC...
   
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