Severe Storm Outlook Narrative (AC)
Issued by NWS

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000
ACUS11 KWNS 261650
SWOMCD
SPC MCD 261650
MEZ000-NHZ000-MAZ000-VTZ000-CTZ000-NYZ000-NJZ000-PAZ000-MDZ000-262115-

MESOSCALE DISCUSSION 1956
NWS STORM PREDICTION CENTER NORMAN OK
1050 AM CST WED NOV 26 2014

AREAS AFFECTED...PARTS OF ERN PA...SERN NY...FAR NWRN NJ...NWRN
CT...WRN AND CENTRAL MA...SRN VT AND SRN NH

CONCERNING...HEAVY SNOW

VALID 261650Z - 262115Z

SUMMARY...HEAVY SNOWFALL RATES /AT LEAST 1 INCH PER HOUR/ ARE
EXPECTED TO PERSIST WITHIN A 70-90 MILE WIDE CORRIDOR FROM ERN PA
THROUGH SERN NY TO WRN/CENTRAL MA AND DEVELOP INTO SRN VT/NH THIS
AFTERNOON.

DISCUSSION...TRENDS IN SURFACE OBSERVATIONS INDICATED RAPID COOLING
HAS ALREADY OCCURRED FROM NERN PA TO WRN MA...LIKELY DUE TO WET-BULB
EFFECTS AND THE DEVELOPMENT OF HEAVY PRECIPITATION RATES FROM SW-NE.
 SURFACE WET-BULB TEMPERATURES ARE EXPECTED TO FALL TO AT OR BELOW
32 ACROSS THE REST OF CENTRAL MA AND SRN NH THIS AFTERNOON.

FORCING FOR ASCENT WILL INCREASE FROM SW-NE ACROSS THE DISCUSSION
AREA ALONG THE TRACK OF A SHORTWAVE TROUGH EJECTING NEWD FROM THE
SRN APPALACHIANS.  FORECAST SOUNDINGS SUGGEST STRONG UVVS SHOULD
OCCUR WITHIN THE DENDRITIC GROWTH ZONE...WHILE FURTHER ENHANCEMENT
TO SNOWFALL RATES MAY RESULT FROM AGGREGATE PROCESSES WITHIN AN
ISOTHERMAL LAYER AT LOW LEVELS.

..PETERS.. 11/26/2014

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

ATTN...WFO...GYX...BOX...BTV...OKX...ALY...PHI...BGM...CTP...
LWX...

LAT...LON   40687528 39777645 39707692 39847738 40287740 41197692
            42197586 42547514 43397299 43887097 42927151 42437190
            42087280 41477394 40687528



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