STORM PREDICTION CENTER...NWS/NCEP...NORMAN OK 
   DAY 1 CONVECTIVE OUTLOOK...REF AWIPS GRAPHIC PGWE46 KWNS.
   
   VALID 301300Z - 011200Z
   
   THERE IS A MDT RISK OF SVR TSTMS ACROSS CNTRL/ERN KS...EXTREME SERN
   NEB...SRN IA...NRN MO AND NRN IL TO THE RIGHT OF A LINE FROM
   40 WNW BEH 45 SE CGX 10 ESE UIN 55 SSW SZL 20 NNW BVO 30 NNW PNC
   25 ENE HUT 20 NW SLN 20 NNE CNK 10 N BIE 15 SE OMA 25 NNW DSM
   15 S JVL 40 WNW BEH.
   
   THERE IS A SLGT RISK OF SVR TSTMS TO THE RIGHT OF A LINE FROM
   20 NNW DRT 30 NW BWD 20 SE FSI 40 SSW END 40 WSW HUT 50 NNE DDC
   40 ENE HLC 40 ENE OLU 45 WSW LNR 45 N GRR 65 NNE MTC ...CONT...
   30 NNE BUF 35 NNE BFD 30 N LBE 15 NNW PKB 35 SSE CMH 30 ESE IND
   40 S MTO 30 SW BLV 35 SSW TBN 15 ENE FYV 30 SW PGO 65 E ACT
   20 N NIR 25 SSE LRD.
   
   GEN TSTMS ARE FCST TO THE RIGHT OF A LINE FROM 25 ESE PNS
   40 WSW SEM 20 NW BHM 20 E MKL 15 WSW DYR 10 SSE ARG 25 ENE LIT
   20 NE ELD 45 NW BTR 20 WNW BVE ...CONT... 15 SSE P07 55 SSW CDS
   25 NW LBL 40 SSE LIC 20 NW GUC 60 WNW 4HV 35 SSE U31 10 SSW OTH
   ...CONT... 60 NW 4OM 55 WNW GEG 20 NW 3TH 3HT 55 NNW REJ 25 NW PIR
   25 ESE MSP APN ...CONT... 15 ENE EFK 35 E UCA 15 N AVP 10 ENE ACY.
   
   ...SYNOPSIS...
   WRN STATES UPPER TROUGH IS EXPECTED TO RETROGRADE SOMEWHAT TODAY AS
   A MODEST SPEED MAX MOVES FROM THE DESERTS THIS MORNING INTO THE
   CNTRL PLAINS AND UPPER MIDWEST BY TONIGHT.  AT THE SURFACE...A WEAK
   LOW WILL DEVELOP OVER ECNTRL KS AND MOVE NEWD TOWARD NRN IL THIS
   EVENING.  FRONT NOW FROM OH VLY-NRN MO-NRN KS WILL MOVE NWD AS A
   WARM FRONT INTO THE GREAT LAKES-NRN IL-SRN IA-SERN NEB THIS
   AFTERNOON WITH A DRYLINE SHARPENING FROM THE LOW SWD INTO CNTRL OK-
   CNTRL TX.  THE FRONT AND DRYLINE WILL BE THE FOCUS FOR TSTMS
   THROUGH TONIGHT.
   
   ...CNTRL/ERN KS NEWD INTO THE UPPER MS VLY AND UPPER OH VLY...
   ONGOING STRONG TSTMS FROM THE LWR MO VLY INTO NRN IL ARE LOCATED
   WITHIN MAX THETA-E ADVECTION THAT WILL SHIFT NEWD INTO THE GREAT
   LAKES REGION/UPPER OH VLY LATER THIS MORNING.  ISOLD HAIL OR
   PERHAPS DAMAGING WINDS MAY OCCUR WITH STRONGER TSTMS.
   
   ATTENTION THEN TURNS TO THE CNTRL PLAINS BY MID AFTERNOON.  AIR
   MASS SHOULD RECOVER IN WAKE OF MORNING MCS AS WARM FRONT QUICKLY
   RETREATS INTO NERN KS...SERN NEB AND CNTRL IA.  HEATING AND NEAR
   60F SURFACE DEW POINTS BENEATH STEEP MIDLEVEL LAPSE RATES WILL
   CONTRIBUTE TO MLCAPE READINGS IN THE 1500-2000 J/KG RANGE.  AS THE
   EXIT REGION OF THE DESERT MIDLEVEL JETLET MIGRATES CLOSER TO THE
   REGION...INCREASING CONVERGENCE ALONG THE WARM FRONT/BOUNDARIES
   SHOULD ERODE CINH AND LEAD TO TSTM INITIATION FROM NERN KS INTO
   SERN NEB AND SWRN IA BY MID AFTERNOON.  
   
   SOMEWHAT WEAK DEEP LAYER SHEAR WILL INCREASE AS THE SPEED MAX
   APPROACHES WITH VALUES MORE THAN SUFFICIENT FOR SUPERCELLS. 
   KINEMATIC/THERMODYNAMIC PARAMETERS SUGGEST POTENTIAL FOR ALL FACETS
   OF SEVERE POSSIBILITIES...WITH VERY LARGE HAIL AND DAMAGING WIND
   PROBABILITIES THE HIGHEST.  THE MOST SIGNIFICANT CROSS-OVER OF LOW-
   MIDLEVEL FLOW SHOULD BE CONFINED TO NRN MO-NRN IL-NRN IND...BUT
   GIVEN THE MYRIAD OF BOUNDARIES AND POTENTIAL FOR BACKED LOW LEVEL
   FLOW INVOF OF SURFACE LOW...A TORNADO OR TWO CANNOT BE RULED OUT
   ANYWHERE IN THE MDT RISK AREA.  
   
   ACTIVITY WILL CONGEAL INTO ONE OR MORE MCS/S AND THRIVE ON SSWLY
   LLJ OVERNIGHT.  SEVERE THREATS /HAIL AND DAMAGING WINDS/ WILL SHIFT
   ACROSS PARTS OF SRN LOWER MI-NWRN OH-NRN IND-NRN IL-NRN MO
   OVERNIGHT.  
   
   ...CNTRL OK SWD INTO SCNTRL TX...
   THERE WILL LIKELY BE WEAK SUBSIDENCE BEHIND A DEPARTING 700 MB
   SHORTWAVE TROUGH MIGRATING NEWD ACROSS OK/NRN TX THROUGH EARLY
   AFTERNOON.  HOWEVER...WEAK UPPER DIFFLUENT PATTERN WILL RESUME
   LATER THIS AFTERNOON...THOUGH STRONGER UPPER SUPPORT WILL REMAIN
   NORTH OF THE REGION.  DRYLINE SHOULD MIX EWD INTO CNTRL OK-CNTRL TX
   BY 20-22 UTC AND CINH MAY WEAKEN SUFFICIENTLY FOR ISOLD/WDLY
   SCATTERED TSTMS TO DEVELOP BY 00 UTC.  BY MID AFTERNOON...VERTICAL
   SHEAR SHOULD BE JUST ENOUGH TO SUPPORT SUPERCELLS WITH MLCAPES OF
   2000-2500 J/KG.  LARGE HAIL AND DAMAGING WINDS ARE POSSIBLE GIVEN
   TSTM DEVELOPMENT.  THERE COULD ALSO BE AN ISOLD TORNADO...
   PARTICULARLY ACROSS CNTRL/NRN TX WHERE AN OUTFLOW BOUNDARY WILL BE
   PRESENT FROM OVERNIGHT CONVECTION.  TSTMS WILL MOVE OFF THE DRYLINE
   AND MOVE TOWARD ERN OK AND THE I-35 CORRIDOR IN TX DURING THE MID-
   LATE EVENING BEFORE WEAKENING.
   
   ..RACY/TAYLOR.. 04/30/03
   NOTE: THE NEXT DAY 1 OUTLOOK IS SCHEDULED FOR 1630Z