Severe Storm Outlook Narrative (AC)
Issued by NWS

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000
ACUS11 KWNS 262100
SWOMCD
SPC MCD 262059
MEZ000-NHZ000-VTZ000-270300-

MESOSCALE DISCUSSION 1957
NWS STORM PREDICTION CENTER NORMAN OK
0259 PM CST WED NOV 26 2014

AREAS AFFECTED...SRN AND DOWNEAST MAINE...NRN NH AND VT

CONCERNING...HEAVY SNOW

VALID 262059Z - 270300Z

SUMMARY...HEAVY SNOWFALL CONTINUES TO EXPAND NEWD INTO NRN PORTIONS
OF NEW ENGLAND. RATES INITIALLY OF 1-2 INCH PER HR ARE LIKELY...AND
MAY LOCALLY EXCEED 2 INCHES PER HR NEAR THE COAST AFTER 23Z.

DISCUSSION...SFC OBSERVATIONS FROM 20Z INDICATE RAPID COOLING OF
TEMPERATURES OVER THE PAST 3 HRS OWING TO WET-BULB EFFECTS...NOW
SUFFICIENT TO SUPPORT SNOWFALL OVER MOST OF THE REGION. BROAD ZONE
OF LOW-MIDLEVEL CONVERGENCE CO-LOCATED WITH A PLUME OF SEASONABLY
MOIST AIR /ESTIMATED AT 0.7-0.8 INCH NEAR THE COAST/ CONTINUES TO
MAINTAIN A SWATH OF MODERATE TO LOCALLY HEAVY SNOWFALL EXTENDING
FROM THE MID-ATLANTIC REGION NEWD INTO NEW ENGLAND. RATES ARE
EXPECTED TO INCREASE FURTHER THIS EVENING...AS UPSTREAM MIDLEVEL
WAVE PIVOTS NEWD WITH A CORRESPONDING INCREASE IN LOW-MIDLEVEL FLOW
AND ASSOCIATED ISENTROPIC UPLIFT OCCURRING. 2-3 INCHES PER HR MAY
BECOME COMMON DURING THE 23Z-03Z TIME PERIOD ACROSS COASTAL PORTIONS
OF MAINE. LONG-DURATION NATURE OF THE EVENT COUPLED WITH A PERIOD OF
INTENSE SNOWFALL RATES SHOULD RESULT IN A SIGNIFICANT HEAVY SNOW
EVENT THIS EVENING AND OVERNIGHT.

..ROGERS.. 11/26/2014

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

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

LAT...LON   44736703 44106877 43317027 43277057 43597202 44157324
            44887263 44957142 45686900 45946779 45746779 45456732
            44736703



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