SPC AC 220726

   DAY 3 CONVECTIVE OUTLOOK  
   NWS STORM PREDICTION CENTER NORMAN OK
   0226 AM CDT MON SEP 22 2014

   VALID 241200Z - 251200Z

   ...NO SVR TSTM AREAS FORECAST...

   ...SUMMARY...
   THUNDERSTORMS WILL BE POSSIBLE WEDNESDAY ACROSS PORTIONS OF THE
   CENTRAL PLAINS AS WELL AS THE SOUTHERN ROCKIES AND SOUTHERN HIGH
   PLAINS.

   ...SYNOPSIS...
   AN AMPLIFIED SYNOPTIC-SCALE REGIME WILL EXIST OVER THE CONUS ON
   WEDNESDAY...WITH STRONGER WESTERLIES RELEGATED TO THE CONUS WEST
   COAST AND CANADA. MULTIPLE RELATIVELY WEAK...GENERALLY
   DECAYING...MID/UPPER-LEVEL LOWS WILL MOVE SLOWLY OVER AREAS SUCH AS
   THE UPPER MIDWEST...SOUTHERN HIGH PLAINS...AND SOUTHEAST STATES.
   MEANWHILE...A SUBSTANTIAL UPPER TROUGH/POLAR JET WILL BEGIN TO
   SPREAD INLAND OVER THE CONUS WEST COAST.

   ...SOUTH-CENTRAL HIGH PLAINS...
   DIURNALLY ENHANCED THUNDERSTORM DEVELOPMENT...MAINLY ON AN ISOLATED
   BASIS...MAY OCCUR WEDNESDAY AFTERNOON IN VICINITY OF A
   SEMI-PERSISTENT LEE TROUGH ACROSS THE REGION. ALTHOUGH OVERALL
   FORCING AND DEEP-LAYER SHEAR /25 KT OR LESS/ WILL BE
   WEAK...RELATIVELY STEEP LAPSE RATES AND MODERATE BUOYANCY MAY
   CONTRIBUTE TO SOME STRONGER UPDRAFTS. PULSE-TYPE HAIL CANNOT BE
   CONCLUSIVELY RULED OUT ACROSS PARTS OF THE REGION...BUT THE OVERALL
   SCENARIO CURRENTLY APPEARS TOO MARGINAL TO WARRANT SEVERE
   PROBABILITIES.

   ..GUYER.. 09/22/2014

   CLICK TO GET WUUS03 PTSDY3 PRODUCT

   NOTE: THE NEXT DAY 3 OUTLOOK IS SCHEDULED BY 0730Z