Categorical Graphic
Probabilistic Tornado Graphic
Probability of a tornado within 25 miles of a point. Hatched Area: 10% or greater probability of EF2 - EF5 tornadoes within 25 miles of a point.
Probabilistic Damaging Wind Graphic
Probability of damaging thunderstorm winds or wind gusts of 50 knots or higher within 25 miles of a point. Hatched Area: 10% of greater probability of wind gusts 65 knots or greater within 25 miles of a point.
Probabilistic Large Hail Graphic
Probability of hail 1" or larger within 25 miles of a point. Hatched Area: 10% or greater probability of hail 2" or larger within 25 miles of a point.

   SPC AC 251227
   
   DAY 1 CONVECTIVE OUTLOOK  
   NWS STORM PREDICTION CENTER NORMAN OK
   0627 AM CST SUN DEC 25 2011
   
   VALID 251300Z - 261200Z
   
   ...NO SVR TSTM AREAS FORECAST...
   
   ...NW GULF COAST TODAY TO THE ARKLATEX/SE OK TONIGHT...
   THE MIDLEVEL LOW OVER THE TX SOUTH PLAINS WILL WOBBLE WNWWD AS ONE
   EMBEDDED SHORTWAVE TROUGH ROTATES NWWD FROM NW TX...AND ANOTHER WAVE
   PIVOTS ESEWD OVER NW/N CENTRAL MEXICO.  AN INITIAL LLJ FROM THE NW
   GULF OF MEXICO TO SW LA WILL WEAKEN TODAY...THOUGH MOISTURE
   TRANSPORT AND WEAK ELEVATED INSTABILITY WILL SUPPORT A RISK FOR
   ISOLATED THUNDERSTORMS TODAY ACROSS SRN LA/SW MS...ROOTED IN THE
   850-700 MB LAYER.  THE RISK FOR ISOLATED THUNDERSTORMS WILL EXPAND
   NWWD TONIGHT AS ANOTHER BRANCH OF LOW-LEVEL SLY FLOW DEVELOPS OVER
   THE SABINE RIVER VALLEY TO THE ARKLATEX.  SOME MOISTENING ALONG THIS
   CORRIDOR WILL RESULT IN MUCAPE OF 75-150 J/KG BASED NEAR 700 MB. 
   SINCE ELEVATED INSTABILITY WILL REMAIN WEAK AND THE SURFACE WARM
   SECTOR WILL REMAIN OFFSHORE ACROSS THE NW GULF...SEVERE STORMS ARE
   NOT EXPECTED.
   
   ..THOMPSON/COHEN.. 12/25/2011
   
   CLICK TO GET WUUS01 PTSDY1 PRODUCT

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