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 010520
   
   DAY 1 CONVECTIVE OUTLOOK  
   NWS STORM PREDICTION CENTER NORMAN OK
   1120 PM CST WED NOV 30 2011
   
   VALID 011200Z - 021200Z
   
   ...NO TSTM AREAS FORECAST...
   
   ...SYNOPSIS...
   AN UPPER-LEVEL SHORTWAVE TROUGH DIGGING ACROSS THE GREAT BASIN IS
   FORECAST TO EVOLVE INTO A CLOSED LOW OVER THE LWR CO RIVER VALLEY
   LATER TODAY. GIVEN MIDLEVEL TEMPERATURES NEAR -25C...LAPSE RATES
   WILL BE STEEP OVER CNTRL/NRN AZ...WHICH MAY AID IN THE OCCURRENCE OF
   A FEW LIGHTNING STRIKES OVER THE REGION. HOWEVER...THUNDERSTORM
   COVERAGE IS EXPECTED TO REMAIN BELOW 10 PERCENT.
   
   ELSEWHERE...SURFACE HIGH PRESSURE WILL SETTLE SWD ACROSS THE GREAT
   PLAINS...LEADING TO A STRENGTHENING LOW-LEVEL BAROCLINIC ZONE
   ORIENTED FROM SWRN TX NEWD TOWARDS THE RED RIVER. THOUGH NWD
   MOISTURE RETURN WILL EVENTUALLY INTERSECT THIS FEATURE OVER
   TX...DESTABILIZATION IS FORECAST TO BE INSUFFICIENT FOR THUNDERSTORM
   DEVELOPMENT.
   
   ..GARNER/KERR.. 12/01/2011
   
   CLICK TO GET WUUS01 PTSDY1 PRODUCT

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