[MCD] SWOMCD

[MCD at goshenarc.org]

ACUS11 KWNS 240328
SWOMCD
SPC MCD 240327 
MAZ000-NHZ000-RIZ000-CTZ000-VTZ000-NYZ000-PAZ000-240900-

MESOSCALE DISCUSSION 0373
NWS STORM PREDICTION CENTER NORMAN OK
0927 PM CST WED MAR 23 2005

AREAS AFFECTED...PORTIONS OF SRN/ERN NY...SRN VT/NH...MA...CT AND RI

CONCERNING...PRECIPITATION TRENDS...WINTER PRECIPITATION 

VALID 240327Z - 240900Z

HVY SNOW WITH HRLY RATES UP TO 1 INCH WILL CONTINUE TO DEVELOP ENEWD
ACROSS FAR SRN VT/NH AND ERN MA THROUGH 06Z...WHILE BEGINNING TO
DISSIPATE ACROSS SRN/ERN NY DURING THE SAME TIME FRAME.
MEANWHILE...THE THREAT FOR HVY SNOW WILL CONTINUE NORTH OF THE DRY
SLOT ACROSS NRN CT/RI AND WRN/SRN MA THROUGH 09Z.

SAT IMAGERY SHOWS WELL DEFINED DRY SLOT WORKING IT/S WAY ACROSS SRN
NEW ENGLAND THIS EVENING. THE PRIMARY INFLUENCES OF THIS FEATURE HAS
BEEN TO ENHANCE MID LEVEL FRONTOGENETICAL FORCING AND DEFORMATION
ALONG A LINE FROM SRN NY EWD INTO WRN MA/NRN MA. A VERY DRY AIRMASS
NOTED BELOW 700 MB EXISTS ACROSS SRN NEW ENGLAND BASED ON THE 00Z
SOUNDINGS...AS WELL AS 03Z OBSERVED DEWPTS IN THE TEENS/LOWER 20S.
THIS WILL LEAD TO A SLOW PROGRESS OF THE HVY SNOWFALL BANDS INTO
THIS REGION AS THE AIRMASS WILL CONTINUE TO NEED TO SATURATE IN THE
LOW LEVELS FROM HVY PRECIPITATION DEVELOPMENT IN THE MID LEVELS AND
INTENSE LOW LEVEL WARM ADVECTION. CURRENT EXTRAPOLATION BRINGS HVY
SNOW  INTO BOS/FAR NERN MA AREA BETWEEN 04Z-06Z AND FAR SRN VT/NH
BETWEEN 05Z-07Z.

AS THE UPPER TROUGH MOVES AWAY FROM NY...DEFORMATION HVY SNOW BAND
CURRENTLY OVER SCENTRAL/ECENTRAL NY WILL SHIFT AWAY FROM THIS AREA
THROUGH 09Z. EXPECT HVY SNOW TO END IN THE BGM AREA/SCENTRAL NY
AROUND 06Z...AND IN THE LOWER HUDSON RIVER VALLEY/ECENTRAL NY BY
AROUND 09Z.

..CROSBIE.. 03/24/2005

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

ATTN...WFO...GYX...BOX...OKX...ALY...BGM...

43077073 42857556 42337662 41927608 41527315 41657140
41836987 42496986 

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