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Oct-22-2003 0800 UTC Day 2 Convective Outlook
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0800 UTC Day 2 Outlook Graphic
      
 
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   SPC AC 220731
   
   DAY 2 CONVECTIVE OUTLOOK  
   NWS STORM PREDICTION CENTER NORMAN OK
   0231 AM CDT WED OCT 22 2003
   
   VALID 231200Z - 241200Z.
   
   ...NO TSTM AREAS FORECAST...
   
   ...SYNOPSIS...
   A MID LEVEL SHORTWAVE TROUGH OFF THE PAC NW COAST EARLY THIS MORNING
   WILL MOVE OVER WA/ORE BY TONIGHT...AND CONTINUE E/ESEWD OVER MT TO
   THE NRN HIGH PLAINS BY LATE IN THE PERIOD.  THIS SHORTWAVE TROUGH
   WILL BEGIN TO AMPLIFY LATE IN THE PERIOD WHILE APPROACHING THE
   PLAINS...WHILE THE DEEP DOWNSTREAM TROUGH OVER THE ERN STATES BEGINS
   TO PROGRESS EWD.  A SURFACE LOW IS FORECAST TO MOVE EWD OVER THE
   CANADIAN PRAIRIE PROVINCES AND A TRAILING COLD FRONT WILL MOVE
   ACROSS THE NRN ROCKIES AREA TOMORROW.  ISOLATED LIGHTNING STRIKES
   MAY ACCOMPANY THE FRONT ACROSS THE W/NW MT AREA...BUT THE
   THUNDERSTORM THREAT WILL BE LIMITED BY WEAK INSTABILITY.  FARTHER SE
   ON THE PLAINS...LEE CYCLOGENESIS ACROSS THE CENTRAL HIGH PLAINS WILL
   INDUCE SLY LOW-LEVEL FLOW FROM THE SRN TO CENTRAL PLAINS. 
   HOWEVER...LOW-LEVEL TRAJECTORIES WILL STILL BE ORIGINATING WITHIN
   THE DRY ANTECEDENT AIR MASS...THUS THUNDERSTORMS ARE NOT EXPECTED IN
   THE CENTRAL PLAINS AREA UNTIL AFTER DAY 2.
   
   ..THOMPSON.. 10/22/2003
   
   ...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 2 OUTLOOK IS SCHEDULED FOR 1730Z
        
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