MESOSCALE DISCUSSION 2518
   NWS STORM PREDICTION CENTER NORMAN OK
   0620 PM CST TUE DEC 07 2004
   
   AREAS AFFECTED...ME...VT AND NH
   
   CONCERNING...WINTER MIXED PRECIPITATION 
   
   VALID 080020Z - 080615Z
   
   HEAVY SNOW WITH RATES OF 1-2 IN/HR ARE LIKELY THROUGH THE EVENING
   HOURS ACROSS MOST OF ME.  MIXED PRECIPITATION WILL PERSIST MOSTLY IN
   SHOWERY FORM ACROSS THE REST OF NEW ENGLAND.
   
   SURFACE ANALYSIS SHOWS STRONG RIDGE IN PLACE OVER ME EXTENDING SWWD
   INTO NH.  FREEZING LINE AT SURFACE HAS STEADILY MOVED / MIXED NWD
   WITH TIME ALLOWING FREEZING RAIN TO END OVER MOST OF MA.  SHIELD OF
   ISENTROPICALLY PRECIPITATION WILL CONTINUE MOVING NWD FAIRLY
   RAPIDLY...WITH SHOWERY PRECIPITATION FILLING IN BEHIND IT.  00Z CAR
   SOUNDING SHOWS DRY LAYER NEAR THE SURFACE...BUT WILL SATURATE
   BETWEEN 02Z AND 04Z BASED ON RAOB AND LATEST RUC. SNOW WILL BE THE
   PREDOMINANT PRECIPITATION TYPE OVER ME ALTHOUGH IT WILL LIKELY
   BECOME MIXED WITH SLEET BY LATE EVENING IN SRN AREAS INCLUDING NH AS
   WARM ADVECTION CONTINUES ABOVE THE SURFACE INVERSION.
   
   ..JEWELL.. 12/08/2004
   
   
   ...NOTICE...
   SPC WINTER WEATHER MESOSCALE DISCUSSIONS WILL BE ISSUED ON A 
   SCHEDULED BASIS...FOUR TIMES A DAY...BETWEEN 00-01 UTC...
   06-07 UTC...12-13 UTC...AND 18-19 UTC AS SIGNIFICANT SHORT
   RANGE WINTER WEATHER EVENTS UNFOLD.  THIS SCHEDULE WILL BE
   USED FROM DECEMBER 1 THROUGH FEBRUARY 28 TO ALLOW PARTNERS
   AND USERS TO BETTER ANTICIPATE THE TIMING OF SPC WINTER WEATHER
   MESOSCALE DISCUSSIONS.
   
   ATTN...WFO...CAR...GYX...BOX...BTV...ALY...
   
   43737030 43267092 42887151 42787206 42867289 43247330
   43857333 44467297 44987291 45037165 45277111 45947030
   46677000 47496922 47426901 47276900 47176889 47286855
   47376831 47036780 45706776 45586742 45226737 45166707
   44796701 44636761 44226886