MESOSCALE DISCUSSION 0250
   NWS STORM PREDICTION CENTER NORMAN OK
   0725 AM CST FRI MAR 08 2013
   
   AREAS AFFECTED...CENTRAL AND ERN MA/FAR SRN NH/RI/CT/LONG ISLAND
   
   CONCERNING...HEAVY SNOW 
   
   VALID 081325Z - 081730Z
   
   SUMMARY...HEAVY SNOWFALL RATES AROUND 1 INCH PER HOUR ARE EXPECTED
   TO PERSIST THROUGH THE MORNING ACROSS MUCH OF ERN AND CENTRAL MA
   INTO NERN CT. CURRENT THINKING SUGGESTS THESE GREATER SNOWFALL RATES
   WILL SPREAD SWWD AND SWD ACROSS MORE OF CT AND POSSIBLY AFFECT PARTS
   OF LONG ISLAND PRIOR TO THIS WINTER WEATHER HAZARD DIMINISHING
   AROUND 17-18Z.
   
   DISCUSSION...AT 13Z...REGIONAL RADAR IMAGERY INDICATED A 30-45 MILE
   WIDE BAND OF SNOW /EMBEDDED WITH MODERATE TO HEAVY SNOWFALL RATES/
   EXTENDING FROM NERN CT THROUGH CENTRAL AND ERN MA TO FAR SERN NH. 
   THIS BAND OF PRECIPITATION IS LOCATED WITHIN A ZONE OF STRONG LOW
   LEVEL WAA EXTENDING FROM THE NWRN ATLANTIC AND ACROSS SRN NEW
   ENGLAND...ATTENDANT TO A 50-55 KT ENELY LLJ AS SAMPLED BY BOSTON MA
   WSR-88D VWP DATA AT 1254Z.  06Z NAM/10Z HRRR/00Z WRF-NSSL 4 KM ALL
   SUGGEST THE CURRENT BAND OF SNOW WITH EMBEDDED HIGHER SNOWFALL RATES
   SHOULD EXPAND SWWD/SWD ACROSS MORE OF CT THIS MORNING AND POSSIBLY
   AFFECT PARTS OF LONG ISLAND WITH RATES UP TO 1 INCH PER HOUR. THESE
   MODELS ALSO INDICATED THE HEAVIER SNOWFALL RATES WILL BEGIN TO
   DIMINISH BY 17-18Z AS THE CURRENT STRONG LLJ WEAKENS AND THEN SHIFTS
   SWD OFF THE SRN NEW ENGLAND COAST AFTER 18Z.
   
   ..PETERS/COHEN.. 03/08/2013
   
   
   ATTN...WFO...GYX...BOX...OKX...ALY...
   
   LAT...LON   42727092 42017081 41477173 40947221 40807308 40867341
               41397342 41987297 42387251 42737194 42957138 42727092