MESOSCALE DISCUSSION 0240
   NWS STORM PREDICTION CENTER NORMAN OK
   0702 PM CST TUE FEB 26 2013
   
   AREAS AFFECTED...PORTIONS OF NRN PA AND WRN-SRN NY
   
   CONCERNING...WINTER MIXED PRECIPITATION 
   
   VALID 270102Z - 270500Z
   
   SUMMARY...SUBSTANTIAL HOURLY RATES /0.05-0.10 INCH/ LASTING FOR A
   FEW HOURS OF MIXED P-TYPE EXPECTED THIS EVENING.
   
   DISCUSSION...RADAR MOSAIC SHOWS A PRECIP SHIELD MOVING NWD FROM PA
   INTO SRN AND WRN NY THIS EVENING.  WATER VAPOR IMAGERY SHOWS A
   CLOSED UPPER LOW OVER THE LOWER OH VALLEY MOVING TOWARDS THE SRN
   GREAT LAKES AS THE WARM CONVEYER BECOMES FOCUSED OVER PA/NY.  STRONG
   ISENTROPIC LIFT/MOISTURE TRANSPORT INTO THE REGION WILL LEAD TO
   PRECIP RATES 0.05-0.10 INCH PER HOUR FOR SEVERAL HOURS THIS EVENING.
   THE 00Z/26 BUF AND ALB RAOBS BOTH SUGGESTED APPRECIABLE WET BULB
   COOLING SHOULD TAKE PLACE ACROSS THIS GENERAL REGION AS THE PROFILE
   SATURATES IN THE LOW LEVELS.  FORECAST SOUNDINGS OVER N-CNTRL AND
   NERN PA AND ADJACENT PORTIONS OF NY INDICATE A WARM NOSE NEAR
   H85...WHICH WOULD SEEM TO SUPPORT A MIXTURE OF SLEET/FREEZING RAIN
   AS THE PREFERRED P-TYPE...AS SURFACE TEMPS FALL TO NEAR OR A FEW
   DEGREES F BELOW FREEZING.
   
   ..SMITH.. 02/27/2013
   
   
   ATTN...WFO...OKX...ALY...PHI...BGM...BUF...CTP...
   
   LAT...LON   41737712 42017816 42477807 42697683 43077530 42537420
               41777431 41237511 41737712