ZCZC SPCSWOMCD ALL
ACUS11 KWNS 040118 
SPC MCD 040118 
MEZ000-NHZ000-VTZ000-040715-

MESOSCALE DISCUSSION 0017
NWS STORM PREDICTION CENTER NORMAN OK
0718 PM CST SAT JAN 03 2015

AREAS AFFECTED...PORTIONS OF NORTHERN VT/NH INTO WESTERN AND CENTRAL
ME

CONCERNING...WINTER MIXED PRECIPITATION 

VALID 040118Z - 040715Z

SUMMARY...MODERATE TO LOCALLY HEAVY SNOW WILL CONTINUE ACROSS
PORTIONS OF VT/NH THIS EVENING AND SPREAD EAST/NORTHEAST ACROSS ME.
SNOWFALL RATES MAY APPROACH 1 INCH PER HOUR AT TIMES BEFORE A
GRADUAL TRANSITION TO SLEET AND FREEZING RAIN OCCURS OVERNIGHT.

DISCUSSION...A STRONG 50-70 KT SOUTHWESTERLY 700 MB JET WILL
CONTINUE TO TRANSPORT MOISTURE NORTHEAST TONIGHT AND RESULT IN
WARMING MIDLEVEL TEMPERATURES LATE THIS EVENING INTO THE OVERNIGHT
HOURS. STRONG DEEP LAYER FORCING FOR ASCENT ASSOCIATED WITH
APPROACHING UPPER TROUGH WILL MAINTAIN MODERATE TO LOCALLY HEAVY
SNOW RATES AS PRECIPITATION SPREADS EAST/NORTHEAST ACROSS NH/VT INTO
ME. MIDLEVEL TEMPERATURES WILL BEGIN TO WARM ATOP BELOW FREEZING
BOUNDARY LAYER AND A TRANSITION TO SLEET AND FREEZING RAIN WILL
OCCUR FIRST ACROSS NH/VT INTO FAR SOUTHWEST ME BY 06-09Z. HEAVIER
SNOWFALL WILL CONTINUE ACROSS MUCH OF MAINE THROUGH THE OVERNIGHT
HOURS...BUT MAY BECOME MIXED WITH SLEET OR TRANSITION TO FREEZING
RAIN AFTER 09Z. WHERE A TRANSITION TO FREEZING RAIN OCCURS...RATES
UP TO 0.05 IN/HR ARE POSSIBLE.

..LEITMAN.. 01/04/2015

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

ATTN...WFO...CAR...GYX...BTV...

LAT...LON   45247161 45647099 46217001 46286934 45866860 45416827
            44906825 44606841 44306895 44056939 43847004 43507065
            43437119 43537164 43747193 44237201 44587208 44907196
            45247161 

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