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 240400
   
   DAY 1 CONVECTIVE OUTLOOK  
   NWS STORM PREDICTION CENTER NORMAN OK
   1000 PM CST FRI DEC 23 2011
   
   VALID 241200Z - 251200Z
   
   ...NO SVR TSTM AREAS FORECAST...
   
   ...SYNOPSIS...
   A CUTOFF LOW CENTERED ALONG THE NM/CHIHUAHUA BORDER WILL GRADUALLY
   TRACK NEWD ACROSS FAR WRN INTO NWRN TX THROUGH EARLY SUN. AT THE
   SURFACE...AN ANTICYCLONE WILL REMAIN ANCHORED ACROSS THE
   INTERMOUNTAIN WEST WITH AN EXPANSIVE RIDGE EMANATING SEWD TO THE SRN
   PLAINS AND THEN NEWD TO THE MID-ATLANTIC.
   
   ...ERN TX...NRN/WRN LA...FAR SRN AR...
   DOWNSTREAM OF THE CUTOFF LOW OVER THE SRN HIGH PLAINS...WARM/MOIST
   ADVECTION THROUGH THE 850-700 MB LAYER WILL OCCUR THROUGH MUCH OF
   THE PERIOD. THIS PERSISTENT PROCESS SHOULD RESULT IN THE DEVELOPMENT
   OF MEAGER ELEVATED BUOYANCY SAT NIGHT WITH MUCAPE AOB 250 J/KG. THE
   WAA-INDUCED ASCENT WILL SUPPORT NUMEROUS SHOWERS DEVELOPING ACROSS
   ERN TX IN THE AFTERNOON AND SPREADING NEWD TO THE LOWER MS VALLEY
   OVERNIGHT. A FEW EMBEDDED CONVECTIVE ELEMENTS MAY BECOME
   SUFFICIENTLY DEEP TO PRODUCE SPORADIC LIGHTNING.
   
   ..GRAMS.. 12/24/2011
   
   CLICK TO GET WUUS01 PTSDY1 PRODUCT

   NOTE: THE NEXT DAY 1 OUTLOOK IS SCHEDULED BY 1300Z