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 281238
   
   DAY 1 CONVECTIVE OUTLOOK  
   NWS STORM PREDICTION CENTER NORMAN OK
   0738 AM CDT SUN OCT 28 2012
   
   VALID 281300Z - 291200Z
   
   ...NO TSTM AREAS FORECAST...
   
   ...SYNOPSIS/FORECAST...
   PATTERN WILL REMAIN AMPLIFIED OVER CNTRL AND ERN NOAM AS BROAD
   TROUGH NOW OVER THE CNTRL STATES FURTHER AMPLIFIES AND ASSUMES A
   GREATER NEGATIVE TILT IN RESPONSE TO THE CONTINUED SE MOTION OF
   SPEED MAXIMA OVER THE MID MS AND LWR TN VLYS. THIS SHOULD STRENGTHEN
   EXISTING AREA OF STRONG UPR DIVERGENCE OFF THE MID ATLANTIC
   CST...AND MAINTAIN STRENGTH OF CYCLONE SANDY...DESPITE THE CONTINUED
   INFLOW OF COLDER/DRIER AIR INTO THAT SYSTEM/S LOW-LVL CIRCULATION.
   SANDY SHOULD TRACK GENERALLY NE TO NNE THROUGH 12Z MON /SEE NHC
   PRODUCTS FOR DETAILS/...KEEPING ASSOCIATED LOW-LVL THETA-E RIDGE
   WELL OFF THE E CST THROUGH THE PERIOD. THIS...COUPLED WITH THE
   CONTINUED LOW-LVL ADVECTION OF MODIFIED POLAR AIR SWD ACROSS THE MID
   ATLANTIC PIEDMONT/CSTL PLN...WILL MINIMIZE ANY RISK FOR THUNDER OVER
   THE OUTER BANKS OR ALONG THE MID-ATLANTIC CST.
   
   ELSEWHERE...FAST...COMPARATIVELY LOW-AMPLITUDE FLOW WILL PREVAIL
   OVER THE PACIFIC NW. ALTHOUGH A SERIES OF WEAK DISTURBANCES
   PERIODICALLY WILL ENHANCE ASCENT FROM WA/ORE INTO THE NRN
   RCKYS...DRY LOW-LVLS AND LIMITED SFC HEATING SHOULD LIMIT RISK FOR
   APPRECIABLE THUNDER.
   
   ..CORFIDI/MOSIER.. 10/28/2012
   
   CLICK TO GET WUUS01 PTSDY1 PRODUCT

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