SPC AC 230111
   
   DAY 1 CONVECTIVE OUTLOOK  
   NWS STORM PREDICTION CENTER NORMAN OK
   0811 PM CDT WED JUN 22 2005
   
   VALID 230100Z - 231200Z
   
   THERE IS A SLGT RISK OF SVR TSTMS TO THE RIGHT OF A LINE FROM 70 NNW
   DVL 35 ESE RAP 40 WSW RAP 20 SSW 4BQ 45 NE COD JAC 20 E IDA BTM 40
   NNW HVR.
   
   GEN TSTMS ARE FCST TO THE RIGHT OF A LINE FROM 20 E ANJ 40 NE PLN
   PLN AUW LSE MLI MTO MVN VIH FSD HON PIR MHN 35 W GLD 30 ESE 4CR TCS
   SAD 15 SSW DUG ...CONT... 15 SSW YUM DAG NFL LOL WMC 27U 55 E S80
   S80 ALW EPH 60 NW 4OM.
   
   GEN TSTMS ARE FCST TO THE RIGHT OF A LINE FROM CRE FLO CLT TRI BLF
   CHO BWI ACY.
   
   ...THERE IS A SLGT RISK OF SVR TSTMS PORTIONS NRN HIGH PLAINS AND
   NRN ROCKIES REGIONS...
   
   ...SYNOPSIS...
   DOMINANT UPPER AIR FEATURE FOR MOST OF CONUS WILL REMAIN INTENSE
   SRN/CENTRAL PLAINS HIGH...WITH RIDGING NWD ACROSS MB.  SHORTWAVE
   TROUGH IS EVIDENT IN MOISTURE CHANNEL IMAGERY MOVING OFFSHORE MID
   ATLANTIC AND NEW ENGLAND REGIONS...WITH ASSOCIATED CONVECTIVE
   POTENTIAL EXPECTED TO WANE THROUGH REMAINDER PERIOD AS STABILIZATION
   COMMENCES THROUGH MUCH OF TROPOSPHERE. MEANWHILE...SECOND STRONG
   SHORTWAVE TROUGH -- NOW OVER SRN BC AND PACIFIC NW -- WILL MOVE WED
   ACROSS CANADIAN ROCKIES AND NRN ID...INTO WRN MT BY END OF PERIOD. 
   LOWER AMPLITUDE PERTURBATION -- NOW EMBEDDED IN MEAN RIDGE POSITION
   OVER ERN ND/NWRN MN -- IS FCST TO TURN SEWD ACROSS MN OVERNIGHT.
   
   ...NRN HIGH PLAINS...NRN ROCKIES...
   AS NWRN TROUGH APCHS WITH INCREASING HEIGHT GRADIENTS ALOFT AND
   STRENGTHENING VERTICAL SHEAR...LARGE SCALE ENVIRONMENT WILL REMAIN
   FAVORABLE FOR SEVERE ACROSS THIS REGION.  HOWEVER THIS TENDENCY WILL
   BE MITIGATED SOMEWHAT BY DIABATIC SFC STABILIZATION AFTER SUNSET. 
   CLUSTER OF STRONG/OCCASIONALLY SEVERE TSTMS IS EXPECTED TO CONTINUE
   MOVING NEWD ACROSS PORTIONS SERN ID INTO SWRN MT AND EXTREME NWRN
   WY...WITH POTENTIAL FOR DAMAGING GUSTS AND MAR5GINALLY SEVERE HAIL. 
   ACTIVITY IS MOVING INTO AIR MASS CHARACTERIZED BY DEEPLY MIXED
   CONVECTIVE BOUNDARY LAYERS...WITH SFC DEW POINT DEPRESSIONS COMMONLY
   IN 40-50 DEG F RANGE.  THIS WILL SUPPORT CONSIDERABLE SUBCLOUD
   EVAPORATIVE COOLING.  RELATED ACCELERATION IN PARCEL DESCENT
   CONTRIBUTING TO SFC GUST THREAT...PARTICULARLY ON SWWD SLOPES FACING
   MEAN WIND.
   
   OTHERWISE REF WW 512 AND RELATED MESOSCALE DISCUSSIONS FOR NEAR-TERM
   POTENTIAL FARTHER DOWNSTREAM ACROSS MUCH OF MT.  THIS ACTIVITY MAY
   MOVE NEWD ACROSS ERN MT INTO INCREASING LOW LEVEL MOISTURE BUT ALSO
   INCREASING SBCIN.  EXPECT CONTINUED POTENTIAL FOR DAMAGING GUSTS AND
   LARGE HAIL AFTER 03Z.
   
   ...NRN MN TO UPPER MI...
   STEEPER MIDLEVEL LAPSE RATES REPRESENTED BY 00Z INL SOUNDING SHOULD
   SHIFT ACROSS MORE OF WRN GREAT LAKES REGION OVERNIGHT IN COMBINATION
   WITH LOW LEVEL MOIST ADVECTION INVOF SWLY LLJ. THIS WILL RENDER AIR
   MASS MORE FAVORABLE FOR STRONG-SEVERE CONVECTION.  LIMITING FACTORS
   WILL BE BOUNDARY LAYER COOLING/STABILIZATION...AND FOR ACTIVITY
   MOVING SEWD FROM NWRN ONT -- VERY STABLE BOUNDARY LAYER OVER LS.
   ADDITIONAL TSTMS MAY DEVELOP IN ELEVATED LOW LEVEL WAA REGIME OVER
   NRN MN AND NRN WI...WITH SIMILAR POTENTIAL FOR OCCASIONAL HAIL AND
   STRONG GUSTS.
   
   ..EDWARDS.. 06/23/2005
   
   ...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 0600Z