SPC AC 090608
   
   DAY 2 CONVECTIVE OUTLOOK  
   NWS STORM PREDICTION CENTER NORMAN OK
   1208 AM CST WED MAR 09 2005
   
   VALID 101200Z - 111200Z.
   
   ...NO TSTM AREAS FORECAST...
   
   ...SYNOPSIS AND DISCUSSION...
   SERIES OF VIGOROUS SHORTWAVE TROUGHS DIVING SEWD OUT OF CNTRL CANADA
   WILL LEAD TO AN INTENSIFICATION OF LONGWAVE TROUGH OVER ERN
   TWO-THIRDS OF THE NATION THURSDAY/THURSDAY NIGHT. IN THE W...RIDGING
   WILL PERSIST FROM THE CANADIAN ROCKIES INTO THE ERN PACIFIC. AT THE
   SURFACE...LOW ATTENDANT TO LEAD SHORTWAVE TROUGH OVER THE UPPER MS
   VALLEY AT 10/12Z WILL DEVELOP SEWD ACROSS THE OH VALLEY WITH
   TRAILING COLD FRONT PUSHING SWD THROUGH THE SRN PLAINS AND CNTRL
   GULF COAST STATES.
   
   RELATIVELY DRY AIR MASS /DEWPOINTS COMMONLY IN THE 30S AND 40S/ 
   CURRENTLY EXISTS ALONG GULF COAST IN WAKE OF INITIAL COLD FRONT THAT
   HAS PUSHED WELL INTO THE GULF OF MEXICO. ADDITIONAL LOW-LEVEL DRYING
   WILL LIKELY OCCUR LATER TODAY INTO TONIGHT WITH PASSAGE OF SECONDARY
   COLD FRONT NOW OVER THE SRN PLAINS. GIVEN THESE ANTECEDENT FRONTAL
   INTRUSIONS INTO THE NWRN GULF...IT APPEARS AIR MASS AHEAD OF
   AFOREMENTIONED DAY 2 FRONTAL SYSTEM WILL REMAIN RELATIVELY DRY AND
   STABLE.
   
   POTENTIAL FOR A FEW LIGHTNING STRIKES WILL EXIST THURSDAY AFTERNOON
   AND EVENING OVER CNTRL HIGH PLAINS WHERE STEEPENING LOW-LEVEL LAPSE
   RATES AND FRONTAL FORCING MAY BE SUFFICIENT TO INITIATE AN ISOLATED
   STORM. AN ISOLATED STORM OR TWO WILL ALSO BE POSSIBLE THURSDAY NIGHT
   OVER THE OH/TN VALLEYS WHERE REGION OF STRONGEST DEEP-LAYER FORCING
   ASSOCIATED WITH LEAD SHORTWAVE TROUGH OVERSPREADS COLD FRONT.
   ANTICIPATED TSTM COVERAGE ACROSS THESE TWO AREAS APPEARS TOO LIMITED
   ATTM TO WARRANT INCLUSION OF GENERAL THUNDER AREA.
   
   ..MEAD.. 03/09/2005
   
   ...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 BY 1730Z