SPC AC 221244
   
   DAY 1 CONVECTIVE OUTLOOK  
   NWS STORM PREDICTION CENTER NORMAN OK
   0744 AM CDT WED MAY 22 2013
   
   VALID 221300Z - 231200Z
   
   ...THERE IS A SLGT RISK OF SVR TSTMS FROM PARTS OF THE TN VALLEY
   NORTHEASTWARD INTO NEW ENGLAND...
   
   MORNING WATER VAPOR LOOPS SHOW AN UPPER LOW OVER IA/MN...WITH
   SEVERAL WELL-DEFINED VORTICITY MAXIMA ROTATING AROUND THE LOW INTO
   THE OH VALLEY.  AHEAD OF THESE FEATURES...AMPLE LOW LEVEL MOISTURE
   IS IN PLACE AND EARLY SATELLITE IMAGES SHOW MOSTLY CLEAR SKIES
   ACROSS PARTS OF OH/WV/PA/NY.  SCATTERED STRONG TO SEVERE
   THUNDERSTORMS ARE FORECAST TODAY OVER MUCH OF THE TN/OH VALLEY
   REGION.
   
   ...OH INTO NEW ENGLAND...
   MULTIPLE MODEL SOLUTIONS SUGGEST SUBSTANTIAL DESTABILIZATION WILL
   OCCUR OVER THIS REGION TODAY.  MODELS ALSO SHOW PRONOUNCED
   CONVECTIVE COVERAGE THROUGH THE AFTERNOON.  GIVEN RATHER STRONG
   WESTERLY FLOW ALOFT AND MODERATE CAPE VALUES...THE POTENTIAL WILL
   EXIST FOR A CLUSTERING OF SEVERE WEATHER REPORTS ACROSS THIS AREA. 
   THUS HAVE UPGRADED THE REGION TO 30 PERCENT HAIL AND WIND THREATS.
   
   ...TN/OH VALLEYS...
   NUMEROUS THUNDERSTORMS HAVE AFFECTED PARTS OF MS/AL OVERNIGHT. 
   THESE STORMS HAVE REDUCED THE SOUTHERLY LOW LEVEL INFLOW INTO THE TN
   VALLEY.  ISOLATED SHOWERS AND THUNDERSTORMS WILL LIKELY DEVELOP IN
   THIS REGION LATER THIS AFTERNOON...BUT IT APPEARS THE COVERAGE OF
   STORMS FROM TN NORTHWARD INTO WESTERN OH/WV WILL BE RATHER SPARSE.. 
   THEREFORE WILL MAINTAIN THE SLIGHT RISK DESIGNATION FOR THIS REGION
   BUT NOT INCLUDE IT IN THE 30 PERCENT UPGRADE.
   
   ..HART/LEITMAN.. 05/22/2013
   
   CLICK TO GET WUUS01 PTSDY1 PRODUCT

   NOTE: THE NEXT DAY 1 OUTLOOK IS SCHEDULED BY 1630Z