SPC AC 140758

   DAY 3 CONVECTIVE OUTLOOK  
   NWS STORM PREDICTION CENTER NORMAN OK
   0158 AM CST MON DEC 14 2015

   VALID 161200Z - 171200Z

   ...NO SVR TSTM AREAS FORECAST...

   ...SUMMARY...
   SCATTERED THUNDERSTORMS ARE EXPECTED ACROSS PORTIONS OF THE GULF
   STATES WEDNESDAY.

   ...GULF STATES...

   PROGRESSIVE UPPER TROUGH WILL MIGRATE INTO THE MIDDLE OF THE CONUS
   DURING THE DAY3 PERIOD WITH A SUBSTANTIAL CORRIDOR OF STRONG SWLY
   MID-LEVEL FLOW FORECAST TO EXTEND FROM TX INTO THE LOWER GREAT
   LAKES.  MODIFIED GULF AIR MASS IS EXPECTED TO ADVANCE NWD AHEAD OF
   SFC FRONT AND BUOYANCY WILL INCREASE SUCH THAT ELEVATED CONVECTION
   SHOULD DEVELOP FROM PORTIONS OF LA INTO WRN GA.  THERE IS SOME
   CONCERN THAT NEAR-SFC BASED PARCELS WILL BE LIFTED AND REACH THEIR
   LFC ACROSS COASTAL PORTIONS OF THE OUTLOOK.  INSTABILITY WILL BE
   SOMEWHAT HIGHER ACROSS THIS REGION...POTENTIALLY SUPPORTING GUSTY
   WINDS WITH STORMS THAT MANAGE TO ORGANIZE.  FOR NOW WILL NOT
   INTRODUCE SEVERE RISK BUT ANY INCREASE IN EXPECTED INSTABILITY MAY
   NECESSITATE AT LEAST 5 PERCENT SEVERE PROBS TO ACCOUNT FOR THIS
   THREAT.

   ..DARROW.. 12/14/2015

   CLICK TO GET WUUS03 PTSDY3 PRODUCT

   NOTE: THE NEXT DAY 3 OUTLOOK IS SCHEDULED BY 0830Z