[MCD] SWOMCD

[MCD at goshenarc.org]

ACUS11 KWNS 030703
SWOMCD
SPC MCD 030703 
PAZ000-NYZ000-MDZ000-WVZ000-VAZ000-OHZ000-031100-

MESOSCALE DISCUSSION 0487
NWS STORM PREDICTION CENTER NORMAN OK
0103 AM CST SUN APR 03 2005

AREAS AFFECTED...ERN OH/WRN PA/WV/FAR WRN MD/SWRN NY

CONCERNING...HEAVY SNOW 

VALID 030703Z - 031100Z

LIGHT TO MODERATE SNOW WILL CONTINUE THROUGH THE EARLY MORNING HOURS
 WITH HEAVIEST SNOW RATES OF 1 INCH PER HOUR AT TIMES.

LATEST WV LOOPS SHOW UPPER LOW ACROSS SRN MD WITH A DRY SLOT
EXTENDING FROM SCNTRL NY/NRN NJ. AS UPPER LOW LIFTS NWD ACROSS ERN
PA/SCNTRL NY OVERNIGHT...COLD AIR WILL WRAP AROUND THE WRN EDGE OF
THE SYSTEM ALONG WITH 45-50 KT MID LEVEL JET. HEAVIEST SNOW WILL BE
ASSOCIATED WITH DEFORMATION ZONE WHICH HAS SET UP FROM CLE/BKW. IN
ADDITION TO THE FRONTOGENETICAL FORCING WHICH WILL SUPPORT
MODERATE/HEAVY SNOW RATES...UPSLOPE FLOW WILL ENHANCE MESOSCALE LIFT
ALONG THE HIGHER ELEVATIONS OF WV/WRN MD AND SWRN PA.

SFC FREEZING LINE EXTENDS FROM YNG/PHD/JST/ELZ AS OF 07Z...WITH WET
BULB TEMPS IN THE LOWER 30S. FORECAST SOUNDINGS SUGGEST NEARLY
ISOTHERMAL PROFILES...ESPECIALLY OVER WRN PA/ERN OH AND INTO
PORTIONS OF WV. THE DEEP SATURATED DENDRITIC LAYER WILL FAVOR OCNLY
MODERATE TO HEAVY SNOW RATES THROUGH THE EARLY MORNING HOURS.

..TAYLOR.. 04/03/2005

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

ATTN...WFO...BUF...CTP...LWX...RNK...PBZ...RLX...CLE...

41558194 40298173 37888104 37668032 38417921 40247837
41657774 42727780 43307787 43397841 43277917 42668172 

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