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 311221
   
   DAY 1 CONVECTIVE OUTLOOK  
   NWS STORM PREDICTION CENTER NORMAN OK
   0621 AM CST THU JAN 31 2013
   
   VALID 311300Z - 011200Z
   
   ...NO TSTM AREAS FORECAST...
   
   ...SYNOPSIS AND FORECAST...
   
   A BROAD...CYCLONIC FLOW REGIME WILL BE MAINTAINED ACROSS MUCH OF THE
   CONUS THROUGH THE D1 PERIOD.  WITHIN THIS LARGE-SCALE PATTERN...THE
   PRIMARY FEATURE OF INTEREST IS A NEGATIVELY TILTED SHORT-WAVE TROUGH
   AND ASSOCIATED 100+ KT JET STREAK AT 500 MB WHICH WILL PROGRESS
   THROUGH NEW ENGLAND TODAY.  THIS SYSTEM WILL BE ATTENDED BY A
   CORRIDOR OF INTENSE FORCING FOR ASCENT WHICH WILL PROMOTE SHALLOW
   CONVECTIVE ELEMENTS ALONG AND AHEAD OF THE SURFACE COLD FRONT. 
   WHILE ISOLATED LIGHTNING STRIKES WILL BE POSSIBLE...POTENTIAL
   APPEARS TOO LIMITED FOR INCLUSION OF A GENERAL TSTM AREA.
   
   ..MEAD/ROGERS.. 01/31/2013
   
   CLICK TO GET WUUS01 PTSDY1 PRODUCT

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