STORM PREDICTION CENTER...NWS/NCEP...NORMAN OK 
   DAY 1 CONVECTIVE OUTLOOK...REF AWIPS GRAPHIC PGWE46 KWNS.
   
   VALID 121630Z - 131200Z
   
   THERE IS A MDT RISK OF SVR TSTMS ACROSS PORTIONS OF SWRN OK AND NRN
   TX TO THE RIGHT OF A LINE FROM 50 NW ABI 20 SSE CDS 40 WSW CSM 15
   WSW CSM 30 ESE FSI 40 SW DUA 15 ESE DAL 40 S DAL 20 NW ACT 45 S SEP
   25 SSE BWD 50 WSW BWD 40 SW ABI 50 NW ABI.
   
   THERE IS A SLGT RISK OF SVR TSTMS TO THE RIGHT OF A LINE FROM
   20 SSW BPT 10 S CLL 40 SE JCT 50 SSE DRT ...CONT... 25 SSW P07
   45 SSE MAF 50 NNE BGS 50 SW CDS 35 W CDS 35 NNW PVW 25 N CVS
   30 WNW TCC 45 NE LVS 15 WNW RTN 50 SW DEN 35 NE LAR 81V 25 NE 81V
   40 NW RAP 60 NW MHN 30 E LBF 20 SSW CNK 25 SSW EMP 40 S CNU
   35 NW FYV 20 NNE FSM 40 E PGO 40 SSW ELD 15 SSW MLU CBM 35 WSW CHA
   10 ESE CSV 10 S LOZ JKL 15 NE UNI 25 ENE ZZV 20 N PIT 25 WSW DUJ
   15 NNE PSB 20 W AVP 25 SSW MSV 30 S GON ...CONT... 30 ESE OAJ
   35 W OAJ 20 SSW SOP 40 SE CLT 25 NNW AGS 25 NE MCN 25 E DHN
   30 W MAI 35 SSE CEW.
   
   GEN TSTMS ARE FCST TO THE RIGHT OF A LINE FROM 15 WSW ART 15 SW GFL
   25 NNE EWB.
   
   GEN TSTMS ARE FCST TO THE RIGHT OF A LINE FROM 15 ESE CRP 45 E COT
   65 SSE DRT.
   
   GEN TSTMS ARE FCST TO THE RIGHT OF A LINE FROM 40 SSW P07 35 E PVW
   20 N PVW 15 NE CVS 20 WNW LVS 50 WSW FMN 20 W U17 25 WNW CDC
   45 W P38 60 S TPH 45 W BIH 10 WNW TVL 45 SSE 4LW 95 SSE BNO
   30 N IDA 25 NNW FCA 50 ENE CTB 55 NNE BIL 25 SSE MLS 45 N REJ
   30 ENE PHP 20 W MHE 15 N FSD 80 N GFK 85 NW CMX 30 NNW IWD
   30 NNW RHI 30 E MLI 40 ESE MMO 20 NNW GRR 75 SE OSC.
   
   ...SYNOPSIS...
   SPLIT UPPER FLOW REGIME WILL PERSIST ACROSS THE CONUS WITH 
   POLAR BELT EXTENDING FROM THE PAC NW INTO THE UPPER MIDWEST AND 
   THE SRN STREAM FROM SOUTH OF CA EWD INTO TX...THEN NEWD INTO THE 
   MID ATLANTIC STATES. A SERIES OF SHORTWAVE TROUGHS IS FORECAST TO
   MOVE WITHIN THESE 2 BANDS OF STRONGER FLOW...THOUGH CONVECTION WILL
   BE MOST ACTIVE ALONG THE SRN STREAM WHERE MOISTURE/INSTABILITY ARE
   GREATER. A SURFACE FRONT SHOULD REMAIN QUASI-STATIONARY FROM SRN
   NEW ENGLAND SWWD THROUGH THE OHIO VALLEY AND INTO WRN TX/ERN NM. A
   SURFACE DRYLINE IN WRN TX WILL SHARPEN AND PUSH EWD ABOUT 50-100 NM
   TO NEAR A CDS-SJT LINE BY LATE AFTERNOON AS A RESULT OF STRONG
   HEATING. 
   
   ...SRN PLAINS...
   COMPLICATED SURFACE PATTERN WITH A MYRIAD OF BOUNDARIES FROM
   OVERNIGHT AND ONGOING CONVECTION. ONE OF THE MORE SIGNIFICANT
   BOUNDARIES/EFFECTIVE COLD FRONT AT LATE MORNING EXTENDED E-W ALONG 
   THE RED RIVER WWD TO A SURFACE LOW NORTH OF LBB. 25 KT SLY LOW
   LEVEL JET AND SEWD MOVING MCV LOCATED OVER NRN OK ARE EXPECTED TO
   RESULT IN SCATTERED ELEVATED CONVECTION ACROSS ERN OK/NERN TX
   THROUGH THE AFTERNOON WITH HAIL THE MAIN THREAT.
   
   MORE SIGNIFICANT CONVECTION IS EXPECTED TO DEVELOP LATE THIS
   AFTERNOON AS THE AIR MASS SOUTH OF THE RED RIVER BOUNDARY AND EAST
   OF THE DRYLINE BECOME EXTREMELY UNSTABLE WITH MLCAPES APPROACHING
   4000 J/KG. A 100 KT JET MAX AT 250 MB WILL BE SPREADING EWD INTO
   THE AREA FROM NM WITH INCREASING UVV. CONVERGENCE NEAR THE TRIPLE
   POINT SHOULD BE SUFFICIENT TO INITIATE STORMS NEAR THE SURFACE
   LOW/DRYLINE/OUTFLOW BOUNDARY ACROSS NWRN TX BY LATE AFTERNOON. THE
   STRENGTH OF THE INSTABILITY AND DEEP LAYER SHEAR AROUND 35 KTS
   SHOULD SUPPORT SUPERCELLS WITH VERY LARGE HAIL...DAMAGING WINDS AND
   PERHAPS A TORNADO OR TWO DURING THE FIRST FEW HOURS AFTER
   INITIATION. OUTFLOWS FROM THESE STORMS SHOULD CONGEAL AND FORM A
   COLD POOL BY EARLY EVENING. GIVEN 30-40 KT WLY WINDS IN THE MID
   LEVELS AND EXTREME INSTABILITY...BOW ECHO IS EXPECTED TO DEVELOP
   AND MOVE SEWD NEAR BOUNDARY INTO NRN TX OVERNIGHT WITH WIDESPREAD
   WIND DAMAGE POSSIBLE.  
   
   ...SRN APPALACHIANS NEWD INTO THE MID ATLANTIC...
   LATEST SATELLITE IMAGERY SHOWS A NEWD MOVING SHORTWAVE TROUGH
   EXTENDS FROM OH SEWD INTO ERN TN. DESPITE THE POOR MID LEVEL LAPSE
   RATES...MORNING SUNSHINE AND DEWPOINTS IN THE LOWER/MID 70S WILL
   RESULT IN MODERATE-HIGH INSTABILITY ACROSS THE AREA. LIFT WILL BE
   AIDED BY APPROACHING TROUGH AND 25-30 KT DEEP LATER FLOW WILL
   SUPPORT SMALL SCALE BOWS/LEWPS...WITH WIND DAMAGE THE GREATEST
   THREAT.  
   
   ...SRN LA/MS EWD INTO AL...
   LINE OF STORMS IS MOVING EWD THROUGH THE S CENTRAL STATES AND
   SHOULD BE MAINTAINED INTO THE AFTERNOON BY SUFFICIENT DEEP LAYER
   SHEAR AND INSTABILITY. THE MAIN THREAT WILL BE WIND DAMAGE. STORMS
   ARE EXPECTED TO GRADUALLY WEAKEN AS STORMS MOVE INTO ERN AL LATE
   TODAY AND ENCOUNTER WEAKER MID LEVEL WINDS/DEEP LAYER SHEAR. 
   
   ...CNTRL HIGH PLAINS...
   LOW LEVEL FLOW IS FORECAST TO BECOME WEAKLY UPSLOPE THIS AFTERNOON
   WITH INFLUX OF SLIGHTLY HIGHER DEW POINTS.  HEATING AND UPSLOPE
   FLOW OF MODERATELY UNSTABLE AIR MASS WILL LIKELY AID TSTMS
   DEVELOPING NEAR THE HIGHER TERRAIN BY MID AFTERNOON. 
   THIS ACTIVITY COULD MOVE ONTO THE PLAINS LATER TONIGHT.  DEEP LAYER
   SHEAR AROUND 25 KT SHOULD SUPPORT A FEW STORMS WITH HAIL AND
   DAMAGING WINDS.
   
   ...AR EWD INTO THE TN VALLEY...
   BOUNDARIES FROM CONVECTION PAST DAY OR SO HAVE STABILIZED AIR MASS
   SOMEWHAT. LIFT APPEARS WEAK THIS AFTERNOON EXCEPT FOR DIFFERENTIAL
   HEATING NEAR BOUNDARIES. EXPECT STORMS TO DEVELOP...BUT GIVEN THE
   MORE STABLE ATMOSPHERE AND WEAKER DYNAMICAL FORCING...SEVERE SHOULD
   BE MUCH MORE ISOLATED THAN ON WEDNESDAY. 
   
   ..IMY/TAYLOR.. 06/12/03
    
    
   
   NOTE: THE NEXT DAY 1 OUTLOOK IS SCHEDULED FOR 2000Z