SPC AC 232012
   
   DAY 1 CONVECTIVE OUTLOOK  
   NWS STORM PREDICTION CENTER NORMAN OK
   0312 PM CDT FRI APR 23 2004
   
   VALID 232000Z - 241200Z
   
   THERE IS A MDT RISK OF SVR TSTMS TO THE RIGHT OF A LINE FROM 40 N
   ADM 15 NNW MWL 50 WSW MWL 10 S ABI 40 E BGS 15 NE LTS 35 WSW OKC 20
   ESE OKC 40 N ADM.
   
   THERE IS A SLGT RISK OF SVR TSTMS TO THE RIGHT OF A LINE FROM 30 SSW
   P07 25 E BGS 15 WNW LTS 20 NW CSM 30 ENE GAG 15 WNW P28 15 WSW HUT
   25 NW CNU 15 NE SGF UNO 40 SE POF 25 NNW GWO 45 WSW HOT 20 ENE DAL
   65 NW AUS 30 SE DRT.
   
   THERE IS A SLGT RISK OF SVR TSTMS TO THE RIGHT OF A LINE FROM 15 WSW
   WAL 10 S ORF 25 WNW DAN 20 SW CHO 45 WNW MRB 20 W CXY 25 S ABE 15
   SSW NEL 15 WSW WAL.
   
   GEN TSTMS ARE FCST TO THE RIGHT OF A LINE FROM 85 SW P07 35 NNE FST
   50 NE HOB 20 NW 4CR 70 W ONM 50 WSW SOW 15 SE PGA 15 SSE CNY 30 ESE
   GJT 50 S GUC 35 N SAF 35 NE TCC 30 SSW EHA 30 S GLD 15 ESE MCK 35
   WSW BIE 45 S P35 30 SW STL 20 NNW HOP 25 S HTS 45 WNW EKN 25 S PSB
   25 NW ABE 20 SW JFK ...CONT... 15 N HSE 10 SW CLT 15 E TCL 35 NNE
   ESF 35 WNW POE 40 S LFK 10 N HOU 40 E PSX.
   
   ...THERE IS A MDT RISK OF SVR TSTMS ACROSS PARTS OF SWRN OK INTO WRN
   N TX...
   
   ...THERE IS A SLGT RISK OF SVR TSTMS FROM SERN KS / SWRN MO AND MUCH
   OF AR SW ACROSS CENTRAL TX...
   
   ...THERE IS A SLGT RISK OF SVR TSTMS ACROSS THE DELMARVA REGION AND
   VICINITY...
   
   ...TX / OK INTO SRN KS / SWRN MO / AR...
   SEVERE / SUPERCELL STORMS CONTINUE TO DEVELOP ACROSS WRN N TX ALONG
   DRY LINE...AND NWD INTO WRN OK NORTH OF SURFACE FRONT. OTHER
   CLUSTERS OF STORMS ARE ONGOING ACROSS NERN OK / SERN KS / SWRN MO
   ATTM.  
   
   GREATEST SEVERE THREAT EXISTS ACROSS WRN N TX / WRN OK...AND WILL
   SHIFT SLOWLY EWD ACROSS N TX AND INTO CENTRAL OK WITH TIME.  ACROSS
   THIS REGION...MODERATELY-UNSTABLE AIRMASS AND STRONG / VEERING
   DEEP-LAYER WIND PROFILES SUPPORT SUPERCELL STORMS WITH THE MAIN
   THREAT LIKELY TO BE VERY LARGE HAIL.  LOCALLY DAMAGING WINDS WILL
   ALSO BE POSSIBLE ALONG WITH A COUPLE OF TORNADOES -- MAINLY SOUTH OF
   THE BOUNDARY ACROSS SWRN AND S CENTRAL OK INTO N TX.
   
   STORMS SHOULD CONTINUE TO INCREASE IN COVERAGE THROUGH THIS EVENING
   MAINLY NORTH OF SURFACE BOUNDARY / AHEAD OF SURFACE LOW...AS
   LOW-LEVEL JET AND ASSOCIATED WARM ADVECTION INCREASE AHEAD OF
   APPROACHING UPPER TROUGH.  SEVERE THREAT IS FORECAST TO PERSIST
   THROUGH MUCH OF THE PERIOD.
   
   ...ERN VA AND THE DELMARVA REGION...
   CLUSTER OF THUNDERSTORMS HAS BEGUN TO INCREASE AS IT MOVES INTO
   MARGINALLY UNSTABLE AIRMASS /AOB 1000 J/KG MEAN-LAYER CAPE/ ACROSS
   THIS REGION.  WITH MODERATELY-STRONG / GENERALLY UNIDIRECTIONAL
   DEEP-LAYER WIND FIELD INDICATED ACROSS THIS REGION...THE POTENTIAL
   FOR STORM ORGANIZATION AND ASSOCIATED THREAT FOR LOCALLY DAMAGING
   WINDS AND PERHAPS MARGINALLY-SEVERE HAIL WILL EXIST ACROSS THIS
   REGION.  THREAT SHOULD PERSIST FOR THE NEXT FEW HOURS BEFORE
   TAPERING OFF WITH THE LOSS OF DAYTIME HEATING.
   
   ...ERN TN...
   THUNDERSTORMS CONTINUE MOVING EWD THROUGH MARGINALLY UNSTABLE
   AIRMASS ACROSS ERN TN AND ADJACENT AREAS OF NWRN AL ATTM.  ALTHOUGH
   A THREAT FOR A LOCALLY DAMAGING GUST WILL PERSIST OVER THE NEXT
   COUPLE OF HOURS...SEVERE THREAT SHOULD CONTINUE TO DECREASE --
   PARTICULARLY WITH THE LOSS OF DAYTIME HEATING THIS EVENING.
   
   ..GOSS.. 04/23/2004
   
   ...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