[MCD] SWOMCD

Fri Jan 19 06:55:49 UTC 2007

ACUS11 KWNS 190658
SWOMCD
SPC MCD 190658 
MEZ000-191300-

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

...PLEASE SEE WWW.SPC.NOAA.GOV FOR GRAPHIC PRODUCT...

...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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