STORM PREDICTION CENTER...NWS/NCEP...NORMAN OK 
   DAY 1 CONVECTIVE OUTLOOK...REF AWIPS GRAPHIC PGWE46 KWNS.
   
   VALID 191630Z - 201200Z
   
   THERE IS A MDT RISK OF SVR TSTMS FOR CENTRAL/ERN OK AND EXTREME
   S/SE KS TO THE RIGHT OF A LINE FROM 20 NW JLN 25 SW FYV 40 ENE PRX
   30 ESE DUA 20 W DUA 35 NNW ADM OKC 40 W END 25 SSW P28 45 E ICT 20
   NW JLN.
   
   THERE IS A SLGT RISK OF SVR TSTMS TO THE RIGHT OF A LINE FROM
   40 NE LIT 40 SSW HOT 35 S GGG 40 ESE CLL 45 NW VCT SAT 60 E JCT
   50 ESE BWD FTW 30 S ADM 45 NW ADM 45 ENE CSM 35 SE GAG 10 ENE GAG
   40 N GAG 35 SSE DDC 40 WSW HUT 30 NW EMP 15 NE FLV 15 NE DSM
   35 WSW RST 40 E MSP 55 NNE EAU 25 N RHI 20 ESE IMT 30 S ESC
   10 W MBL 35 S MKG 40 SSW SBN 15 ENE HUF 30 N EVV 35 NNE PAH
   30 ESE POF 40 NE LIT.
   
   GEN TSTMS ARE FCST TO THE RIGHT OF A LINE FROM 60 WSW COT 40 S JCT
   45 NE JCT 45 E ABI 20 SW SPS 15 SSW CDS 25 NW LBB 25 NW ROW
   20 NW ONM 40 SSW GUP 35 NNW INW 40 W PGA 15 SW U24 35 WSW OGD
   40 ESE MLD 50 NE EVW 25 E RKS 35 S RWL 30 NW AKO 30 E AKO
   20 NNE GLD 30 WNW HLC 35 NE HLC 25 E HSI 10 NE OLU 25 NE SUX
   30 ENE OTG 20 S STC 25 WSW DLH 25 ENE ELO ...CONT... 25 SSE MTC
   10 ENE FDY 40 WSW LUK 35 SSW BNA 40 NNW MEI 25 SW HUM.
   
   ...N TX/OK/EXTREME S/SE KS AREA...
   REMNANTS OF A NOCTURNAL MCS/POSSIBLE MCV ARE MOVING NEWD TOWARD
   W/NW MO...WHILE ADDITIONAL ELEVATED STORMS ARE DEVELOPING IN A
   SWATH FROM NE TX NEWD ACROSS ERN OK/WRN AR ALONG THE 50 KT LLJ. 
   ISOLATED LARGE HAIL AND DAMAGING GUSTS WILL BE POSSIBLE WITH THIS
   ACTIVITY THROUGH THE AFTERNOON...THOUGH THE STRONGER INSTABILITY
   SHOULD REMAIN FARTHER W OVER CENTRAL OK AND N TX.  IN THE WAKE OF
   THIS CONVECTION...AN OUTFLOW BOUNDARY IS ALREADY LIFTING NWD ACROSS
   S/SW OK.  E/SELY WINDS ON THE COOL SIDE OF THE BOUNDARY AND BREAKS
   IN THE CLOUDS WILL ALLOW THE LOW LEVELS TO DESTABILIZE ACROSS
   CENTRAL/NRN OK THROUGH THE AFTERNOON.
   
   A SURFACE LOW IN THE NRN TX PANHANDLE WILL DEVELOP EWD TO CENTRAL/N
   CENTRAL OK BY LATE AFTERNOON AS A MID LEVEL SHORTWAVE TROUGH LIFTS
   NEWD FROM NE NM TOWARD SRN KS.  THE DRYLINE NOW ACROSS NW TX WILL
   SHARPEN AND MOVE EWD TO NEAR THE I-35 CORRIDOR IN CENTRAL OK/N TX
   BY 21-00Z...IN RESPONSE TO DAYTIME HEATING/MIXING AND 30 KT W/SWLY
   LOW-LEVEL FLOW NOTED IN THE JTN/DYX WIND PROFILES.  MEANWHILE...THE
   OUTFLOW BOUNDARY NEAR THE RED RIVER IN SW OK SHOULD BECOME MORE
   DIFFUSE AND DRIFT N OF THE I-44 CORRIDOR BY AFTERNOON.  EXPECT
   ADDITIONAL THUNDERSTORMS TO DEVELOP AROUND 19-21Z NEAR THE SURFACE
   LOW IN NW OK...AND SPREAD GENERALLY EWD ACROSS NRN OK THROUGH THE
   AFTERNOON/EVENING.  STORMS WILL ALSO DEVELOP NEAR THE OUTFLOW AND
   DRYLINE INTERSECTION AROUND 20-22Z TO THE NW OF OKC...AS WELL AS
   SWD ALONG THE DRYLINE INTO N TX BY 00Z.  THESE STORMS WILL THEN
   MOVE EWD ACROSS ERN OK/NE TX THROUGH EARLY TONIGHT.
   
   VERTICAL SHEAR AND INSTABILITY WILL BE FAVORABLE FOR DISCRETE
   SUPERCELLS...WITH 0-6 KM SHEAR OF 50-60 KT ORIENTED ACROSS THE
   DRYLINE...AND MLCAPE VALUES OF 1500-2000 J/KG FROM CENTRAL/ERN OK
   SWD INTO N/NE TX.  VERY LARGE HAIL AND DAMAGING GUSTS CAN BE
   EXPECTED WITH THESE STORMS FROM ABOUT 21-04Z ACROSS THE MDT RISK
   AREA.  THOUGH LOW-LEVEL FLOW/SHEAR WILL LIKELY WEAKEN SOME BY
   AFTERNOON ACROSS N TX/OK...A FEW TORNADOES WILL BE POSSIBLE GIVEN
   BOUNDARY LAYER DEW POINTS OF 62-64 F AND 0-1 KM SRH OF 100-200
   M2/S2.  
   
   ...MO/IL/IA/WI...
   THE LOW OVER SRN MN THIS MORNING WILL WEAKEN AND A NEW LOW SHOULD
   DEVELOP THIS AFTERNOON INVOF NRN MO AND MOVE NEWD ACROSS IA DURING
   THE EVENING/WRN WI OVERNIGHT...AS THE SHORTWAVE TROUGH OVER THE SRN
   HIGH PLAINS MOVES NEWD TOWARD IA BY 20/12Z.  THOUGH LOW-LEVEL AND
   DEEP LAYER WIND PROFILES/SHEAR WILL BE SUFFICIENT FOR ORGANIZED
   SEVERE STORMS OVER THIS AREA...WIDESPREAD CLOUDS/PRECIPITATION
   SPREADING NEWD WILL LIMIT DESTABILIZATION THIS AFTERNOON. 
   THEREFORE...EXPECT THE MAIN THREATS ALONG THE LOW TRACK TO BE
   ISOLATED LARGE HAIL AND A FEW DAMAGING GUSTS WITH STORMS EMBEDDED
   IN THE LARGER AREA OF THUNDERSTORMS.  OTHER THUNDERSTORMS MAY FORM
   ALONG THE COLD FRONT OR MOVE INTO MO/WRN AR TONIGHT FROM ERN
   OK...BUT THE STORMS SHOULD TEND TO WEAKEN LATE TONIGHT WHILE MOVING
   AWAY FROM THE STRONGER INSTABILITY ACROSS ERN OK. 
     
   ..THOMPSON.. 04/19/03
   
   NOTE: THE NEXT DAY 1 OUTLOOK IS SCHEDULED FOR 2000Z