ZCZC SPCSWODY1 ALL ACUS01 KWNS 221953 SPC AC 221927 STORM PREDICTION CENTER...NWS/NCEP...NORMAN OK DAY 1 CONVECTIVE OUTLOOK...REF AWIPS GRAPHIC PGWE46 KWNS. VALID 222000Z - 231200Z NO SVR TSTM AREAS FCST. GEN TSTMS ARE FCST TO THE RIGHT OF A LINE FROM 15 ESE PNS DHN 25 NE AYS 20 ESE SAV ...CONT... 10 ESE DAB 25 N PIE. ...EXTREME SRN GA AND NRN FL... ANALYSIS PLACES COLD FRONT FROM NEAR SSI TO WEAK LOW OVER SWRN GA THEN SWWD TO SERN COASTAL LA. PER MORNING H85 ANALYSIS AND RECENT UPSWING IN CONVECTION ALONG THE COLD FRONT...WEAK WARM ADVECTION CONTINUES ABOVE FRONTAL SURFACE. IT APPEARS LIKELY THAT BANDS OF SHOWERS AND TSTMS WILL CONTINUE TO DEVELOP...THEN MOVE SEWD INTO NRN FL OVER THE NEXT SEVERAL HOURS. LACK OF STRONG SURFACE CONVERGENCE AND WEAK INSTABILITY ARGUE AGAINST SUSTAINED DEEP CONVECTION. HOWEVER...IF A STRONGER UPDRAFT IS MAINTAINED...STEEP MIDLEVEL LAPSE RATES AND FAVORABLE DEEP LAYER SHEAR ARE SUFFICIENT FOR HAIL. ..RACY.. 01/22/03 NNNN |