SPC AC 030554
   
   DAY 2 CONVECTIVE OUTLOOK  
   NWS STORM PREDICTION CENTER NORMAN OK
   1154 PM CST SAT APR 02 2005
   
   VALID 041200Z - 051200Z
   
   GEN TSTMS ARE FCST TO THE RIGHT OF A LINE FROM 85 E ELO 60 SSE DLH
   15 SSE MSP 10 E OTG 25 SW YKN 30 N EAR 30 NNW DDC 35 N AMA 15 SE TCC
   30 SW GNT 20 NW IGM 40 E BIH 30 SW NFL 75 SE 4LW 60 N BOI 35 N HVR.
   
   ...NO SVR TSTM AREAS FORECAST...
   
   ...SYNOPSIS...
   
   LATEST MODEL GUIDANCE CONTINUES TO SUGGEST ERN PACIFIC MID LEVEL
   SPEED MAX WILL DIG ACROSS THE SRN GREAT BASIN INTO THE TX PANHANDLE
   LATE IN THE PERIOD WHERE H5 FLOW WILL LIKELY EVOLVE INTO A CLOSED
   LOW OVER THE HIGH PLAINS.  OF PARTICULAR CONCERN FOR DEEP CONVECTION
   IS THE EXPECTED SLOW MODIFICATION OF MARITIME AIR MASS OVER THE WRN
   GULF OF MEXICO...AND THE ABSENCE OF SIGNIFICANT LOW LEVEL MOISTURE
   ACROSS THE SRN/CNTRL PLAINS.  THIS PROCESS WILL NOT PROVE FAVORABLE
   FOR STRONG STORMS DURING THE DAY2 PERIOD ALONG/AHEAD OF DRY
   LINE/COLD FRONT FROM NEB...SOUTH.
   
   HOWEVER...FARTHER NORTH...MID LEVEL MOISTENING ACROSS THE CNTRL
   ROCKIES AND A SWLY DEEP LAYER TRAJECTORY WILL ENHANCE THE CONVECTIVE
   POTENTIAL ACROSS THE DAKOTAS INTO POSSIBLY MN LATE IN THE PERIOD. 
   IN ADDITION...ALTHOUGH MEAGER BOUNDARY LAYER MOISTURE WILL EXIST
   ACROSS THIS REGION A NARROW ZONE OF STEEP LAPSE RATES MAY PROVE
   ADEQUATE FOR A FEW HIGH BASED STORMS NEAR THE FRONT ACROSS SD INTO
   SCNTRL ND DURING THE AFTERNOON HOURS.  WARM ADVECTION SHOULD BE THE
   PRIMARY FORCING MECHANISM FOR EWD DEVELOPMENT OF ELEVATED
   THUNDERSTORM ACTIVITY DURING THE OVERNIGHT HOURS.
   
   ..DARROW.. 04/03/2005
   
   ...NOTICE...
   THE STATION RELATIVE POINTS IN THIS PRODUCT ARE NOW AVAILABLE
   SEPARATELY UNDER THE WMO HEADINGS WUUS01 PTSDY1...
   WUUS02 PTSDY2...WUUS03 PTSDY3.  THE INCLUSION OF POINTS
   IN THIS DISCUSSION WILL BE DISCONTINUED AFTER THE 2005
   CONVECTIVE SEASON.  A PUBLIC NOTIFICATION STATEMENT (PNS)
   WILL PROVIDE DETAILS ON THE TRANSITION.
   
   CLICK TO GET WUUS02 PTSDY2 PRODUCT

   NOTE: THE NEXT DAY 2 OUTLOOK IS SCHEDULED BY 1730Z