SPC AC 271238
   
   DAY 1 CONVECTIVE OUTLOOK  
   NWS STORM PREDICTION CENTER NORMAN OK
   0738 AM CDT SAT AUG 27 2005
   
   VALID 271300Z - 281200Z
   
   GEN TSTMS ARE FCST TO THE RIGHT OF A LINE FROM 10 W MSS 40 ESE UCA
   20 NNW PHL 35 NNW RIC 35 W GSO 30 WNW AND 30 SE RMG 25 SW ANB 25 NW
   LUL 15 S MCB 35 WSW GPT 25 W MGR 10 E FLO 20 E GSB 20 E ECG
   ...CONT... 25 SW FHU 20 SW SAD 20 NNW SOW 45 W PGA 50 WNW U24 20 NNE
   OGD 20 SSE RKS 20 W CYS 30 NNE IML 10 SSE BBW 25 ESE FSD 30 SE MKT
   20 ENE ALO 35 SE DSM 10 NE LWD 20 ESE TOP 30 ENE ICT PNC 50 WSW TUL
   MKO 50 NNE SGF 20 NNW CMI 40 NNE CGX 10 WNW MTW 65 N EAU 45 SSE BJI
   50 NNW TVF.
   
   ...NO SVR TSTM AREAS FORECAST...
   
   ...WRN TX INTO THE CENTRAL HIGH PLAINS/KS...
   SURFACE COLD FRONT NOW EXTENDING SWWD OUT OF THE MID MS RIVER VALLEY
   WILL LIKELY STALL OVER NRN OK INTO SERN CO TODAY.  IN
   ADDITION...PERSISTENT CONVECTION OVER THE TX PNHDL WILL REINFORCE AN
   OUTFLOW BOUNDARY INTO NWRN TX FOR MUCH OF THE DAY.  HEATING WITHIN
   RESIDUAL LOW LEVEL MOISTURE AXIS INVOF SURFACE FRONT SHOULD ALLOW
   MODERATE INSTABILITY LATER THIS AFTERNOON OVER THIS REGION.  IN
   ADDITION...A SLOW MOVING SHORTWAVE TROUGH WAS EVIDENT THIS MORNING
   OVER THE CENTRAL ROCKIES WHICH WILL SHIFT SEWD ACROSS THE CENTRAL
   HIGH PLAINS TODAY AND TONIGHT. AHEAD OF THIS SYSTEM...LARGE SCALE
   ASCENT SHOULD SUPPORT INCREASING THUNDERSTORMS DURING THE LATE
   AFTERNOON/EVENING...ESPECIALLY NEAR SFC FRONT/UPSLOPE REGIME INTO
   FAR ERN CO/WRN KS/OK PANHANDLE.  THOUGH FORECAST SOUNDINGS YIELD
   SUFFICIENT MLCAPE AND LOW LEVEL LAPSE RATES FOR A THREAT OF ISOLATED
   SEVERE THUNDERSTORMS...OVERALL WIND FIELDS/SHEAR ARE EXPECTED TO
   REMAIN QUITE WEAK /I.E. SFC-6 KM SHEAR AOB 15 KT OVER THE HIGH
   PLAINS/.  THIS IS EXPECTED TO LIMIT OVERALL ORGANIZATION AND
   RESULTANT SEVERE THREAT WITH STORMS DEVELOPING SSEWD THROUGH THE
   EVENING.  SHOULD STORMS DEVELOP FARTHER EAST INTO THE CENTRAL PLAINS
    NEAR SECONDARY SURFACE COLD FRONT...SHEAR WILL BE A BIT STRONGER
   AND COULD SUPPORT MULTICELL ORGANIZATION.  HOWEVER...UNCERTAINTY
   REGARDING DEVELOPMENT AWAY FROM THE HIGH PLAINS REMAINS TOO GREAT
   /GIVEN STRONG CAP AND MUCH DRIER BOUNDARY LAYER/ TO SUPPORT HIGHER
   PROBABILITIES ATTM.
   
   ...NERN TX INTO THE MID SOUTH...
   SURFACE COLD FRONT WILL CONTINUE A SLOW SWD MOTION INTO THE MID
   SOUTH TODAY...WITH A SERIES OF OUTFLOW BOUNDARIES PERSISTING AHEAD
   OF IT. AIR MASS REMAINS VERY MOIST AND WILL LIKELY SUPPORT STRONG
   INSTABILITY THIS AFTERNOON...SOUTHWEST OF EXTENSIVE CLOUDS NOW
   OVERSPREADING MUCH OF TN/KY/OH.  CONVERGENCE INVOF SURFACE FRONT
   WITHIN A VERY MOIST/UNSTABLE AIR MASS WILL THUS SUPPORT A FEW
   PULSE-TYPE SEVERE EVENTS OVER THIS REGION.
   
   ..EVANS/CROSBIE.. 08/27/2005
   
   ...NOTICE...
   THE STATION RELATIVE POINTS IN THIS PRODUCT ARE NOW AVAILABLE
   SEPARATELY UNDER THE WMO HEADINGS WUUS01 PTSDY1...
   WUUS02 PTSDY2...WUUS03 PTSDY3.  THE INCLUSION OF POINTS
   IN THIS DISCUSSION WILL BE DISCONTINUED AFTER THE 2005
   CONVECTIVE SEASON.  A PUBLIC NOTIFICATION STATEMENT (PNS)
   WILL PROVIDE DETAILS ON THE TRANSITION.
   
   CLICK TO GET WUUS01 PTSDY1 PRODUCT

   NOTE: THE NEXT DAY 1 OUTLOOK IS SCHEDULED BY 1630Z