MESOSCALE DISCUSSION 0080
   NWS STORM PREDICTION CENTER NORMAN OK
   1258 AM CST FRI JAN 19 2007
   
   AREAS AFFECTED...PORTIONS OF SRN AND ERN ME
   
   CONCERNING...HEAVY SNOW 
   
   VALID 190658Z - 191300Z
   
   ...SNOW WILL CONTINUE TO SPREAD ACROSS MUCH OF SRN AND CNTRL ME
   EARLY THIS MORNING...
   
   LATEST SFC ANALYSIS SHOWS WEAK SFC LOW JUST NORTH OF CAPE COD. SFC
   PRESSURE FALLS OF 1-2 MB/HR ARE OBSERVED FROM PORTIONS OF MA ACROSS
   NRN NEW ENGLAND...SUGGESTING THAT INTENSIFYING SFC LOW WILL LIFT NWD
   TOWARD GULF OF ME BY 12Z FRIDAY. RADAR LOOPS INDICATE PRECIPITATION
   HAS ALREADY SPREAD AS FAR NORTH AS BANGOR WITH RAIN OR FREEZING RAIN
   OBSERVED CLOSE TO THE COAST.
   
   LARGE SCALE ASCENT ASSOCIATED WITH ERN NY SHORTWAVE IS APPARENT ON
   SATELLITE LOOPS...AND THIS WILL LIKELY INTERACT WITH BAROCLINIC ZONE
   ALONG THE COAST. LOW LEVEL FRONTOGENESIS IS FORECAST TO INCREASE
   OVERNIGHT...AND THIS WILL SUPPORT THE DEVELOPMENT OF A MORE
   SUBSTANTIAL SNOW BAND BY 12Z...WITH HEAVIEST SNOW RATES EXPECTED
   AFTER 09Z. FORECAST SOUNDINGS SUGGEST PROFILES FROM AUGUSTA TO
   BANGOR ARE OR WILL BECOME SATURATED THROUGH A DEEP LAYER WITH
   DENDRITIC GROWTH ZONES FAVORABLE FOR MODERATE TO HEAVY SNOW
   PRODUCTION.
   
   ..TAYLOR.. 01/19/2007
   
   
   ...NOTICE...
   SPC WINTER WEATHER MESOSCALE DISCUSSIONS WILL BE ISSUED ON A
   SCHEDULED BASIS FROM DECEMBER 1 THROUGH FEBRUARY 28...FOUR
   TIMES A DAY...AROUND 00 UTC...06 UTC...12 UTC...AND 18 UTC
   FOR SIGNIFICANT SHORT RANGE WINTER WEATHER EVENTS.
   
   ATTN...WFO...CAR...GYX...
   
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