DAY 1 CONVECTIVE OUTLOOK  
   NWS STORM PREDICTION CENTER NORMAN OK
   0252 PM CDT SUN AUG 03 2003
   
   VALID 032000Z - 041200Z
   
   THERE IS A SLGT RISK OF SVR TSTMS TO THE RIGHT OF A LINE FROM 60 NNW
   ISN 25 NW DIK 20 NE MHN 20 W LBF 30 NNE AKO 25 NE FCL 30 N CPR 55 SW
   BIL 20 NW HLN 40 NNE FCA
   
   THERE IS A SLGT RISK OF SVR TSTMS TO THE RIGHT OF A LINE FROM 35 WNW
   END 10 ESE HUT 25 ESE EMP 25 SW STL 45 NW LAF 45 SW FDY 35 E LUK 20
   WNW CHA 20 S BHM 25 SSW GLH 25 SSW TXK 25 SSW FSI 35 WNW END
   
   GEN TSTMS ARE FCST TO THE RIGHT OF A LINE FROM 45 ENE CRP 40 ESE TPL
   45 WSW TPL 25 ESE SJT 60 SSW LBB 20 SW P07 ...CONT... 50 SSW TUS 55
   NW SAD 20 NNW FLG 40 WSW PGA 45 SSW BCE 10 NNW TVL 35 E MHS 45 NNE
   4LW 70 SSE BNO 85 WNW FCA ...CONT... 50 NNE MOT 45 SSW JMS 20 W YKN
   20 SW LWD 15 SW OTM 20 WSW RST 20 ENE ELO ...CONT... 40 N BML 25 SSE
   AUG
   
   ...THERE IS A SLGT RISK OF SVR TSTMS ACROSS THE NRN/CNTRL HIGH
   PLAINS...
   
   ...THERE IS A SLGT RISK OF SVR TSTMS ACROSS PORTIONS OF THE MIDWEST
   THROUGH THE LOWER OH/TN VLYS AND INTO THE SRN PLAINS...
   
   ...NRN/CNTRL HIGH PLAINS...
   WATER VAPOR IMAGERY SHOWS AXIS OF THE MIDLEVEL SHORTWAVE TROUGH
   MOVING NEWD ACROSS NRN UT AND ERN ID.  LARGE SCALE FORCING FOR
   ASCENT WAS SPREADING NEWD INTO THE NRN/CNTRL ROCKIES AND TSTMS
   DEVELOPING ALONG THE HIGHER TERRAIN WILL LIKELY INCREASE THROUGH THE
   EVENING.  LOW LEVEL FLOW HAS TURNED UPSLOPE ACROSS ERN MT SWD INTO
   NERN CO AND 50S AND 60S DEW POINTS HAVE ADVECTED FROM THE ADJACENT
   PLAINS.  INITIAL TSTMS WILL HAVE POTENTIAL FOR DAMAGING WIND GUSTS
   OMTNS WHERE BOUNDARY LAYER REMAINS SOMEWHAT DRY.  VERTICAL SHEAR
   WILL BE THE STRONGEST ACROSS ERN PARTS OF MT/WY WHERE SUPERCELLS MAY
   DEVELOP WITH LARGE HAIL.  AS THE SHORTWAVE TROUGH MOVES CLOSER...THE
   LOW LEVEL FLOW WILL RESPOND TO PRESSURE FALLS WITH A 30-35 KT SELY
   H85 JET DEVELOPING AFTER DARK IN THE NRN HIGH PLAINS.  THUS...ONE OR
   TWO TSTM CLUSTERS ARE APT TO THRIVE IN WARM/MOIST ADVECTION ZONE AND
   MOVE ESEWD INTO PARTS OF ERN MT/ERN WY/WRN SD/NEB PNHDL OVERNIGHT
   WITH A DAMAGING WIND/HAIL THREAT.
   
   ...SRN PLAINS INTO THE OZARKS...
   A BRANCH OF THE LLJ CONTINUES TO FEED WRN EDGE OF DECAYING MCS
   ACROSS CNTRL/SRN OK WITH CONVECTIVE DEBRIS THEN MOVING SEWD AND
   DIMINISHING OVER THE ARKLATEX. THERE SHOULD BE A BRIEF RESPITE OF
   ENHANCED WARM ADVECTION/TSTMS THIS EVENING AS THE LLJ RELOADS AND
   AIMS MORE INTO THE CNTRL HIGH PLAINS.  HOWEVER...WARM ADVECTION
   REGIME SHOULD RESUME LATER THIS EVENING/OVERNIGHT WITH TSTMS
   EXPECTED TO REDEVELOP ACROSS PORTIONS OF SERN KS...CNTRL OR ERN OK
   EWD INTO THE OZARKS.  PRESENCE OF STEEP LAPSE RATES AND FAVORABLE
   NWLY FLOW REGIME WILL CONTRIBUTE TO A DAMAGING WIND/LARGE HAIL
   POTENTIAL LATER TONIGHT.
   
   ...TN VLY NWD INTO THE MIDWEST...
   MCS CONTINUES TO MOVE EWD ACROSS NRN MS INTO NRN AL ALONG OLD
   OUTFLOW BOUNDARY FROM NOCTURNAL MCS THAT COLLAPSED UPSTREAM.  THESE
   TSTMS SHOULD DIMINISH LATER THIS EVENING OVER THE TN VLY...BUT COULD
   PRODUCE DAMAGING WIND GUSTS FOR A FEW MORE HOURS.
   
   ANOTHER VORTICITY LOBE APPEARS TO BE ROUNDING BASE OF UPPER TROUGH
   ...NOW MOVING ACROSS IL.  VSBL SATELLITE AND RADAR IMAGERY SHOWS
   CONVECTION INCREASING DOWNSTREAM ACROSS SERN MO NWD INTO CNTRL IL. 
   PAH VWP SHOWS MODEST MIDLEVEL FLOW...AUGMENTING VERTICAL SHEAR
   SUFFICIENT TO SUPPORT ORGANIZED SEVERE CONVECTION WITH DAMAGING
   WINDS AND LARGE HAIL.  ACTIVITY IS LIKELY TO MOVE INTO PARTS OF THE
   LOWER OH VLY DURING THE EVENING BEFORE WEAKENING.
   
   ...UPPER OH VLY INTO CNTRL APPALACHIANS...
   BANDS OF TSTMS HAVE FORMED AHEAD OF MIDLEVEL SHORTWAVE TROUGH
   MIGRATING NEWD ACROSS THE UPPER OH VLY THIS AFTERNOON. STRONGEST
   TSTMS APPEAR TO BE MOVING INTO CNTRL PA...BUT INSTABILITY IS
   SOMEWHAT LESS THAN FARTHER SW WHERE THE TSTMS DEVELOPED. 
   UNIDIRECTIONAL WSWLY FLOW THROUGH THE COLUMN WILL ENCOURAGE A FEW
   STORMS TO BOW GIVING ISOLD WIND DAMAGE.  HAIL IS ALSO POSSIBLE WITH
   THE STRONGER STORMS.  ACTIVITY SHOULD WEAKEN LATER THIS EVENING AS
   IT SHIFTS INTO NRN/ERN PA AND SRN NY.
   
   ..RACY.. 08/03/2003
   
   ...NOTICE...
   FOR USERS DECODING THE POINTS PARAGRAPH HEREIN...LATITUDE AND
   LONGITUDE POINTS FOR THE CATEGORICAL AND PROBABILISTIC OUTLOOK
   GRAPHICS ALSO ARE LOCATED IN A SEPARATE PRODUCT UNDER THE WMO
   HEADINGS WUUS01 PTSDY1...WUUS02 PTSDY2...AND WUUS03 PTSDY3.  THE
   INCLUSION OF POINTS IN THIS PRODUCT WILL EVENTUALLY BE DISCONTINUED.
   
   NOTE: THE NEXT DAY 1 OUTLOOK IS SCHEDULED FOR 0100Z