[MCD] SWOMCD

[MCD at goshenarc.org]

ACUS11 KWNS 171937
SWOMCD
SPC MCD 171933 
PAZ000-MDZ000-VAZ000-WVZ000-172130-

MESOSCALE DISCUSSION 2234
NWS STORM PREDICTION CENTER NORMAN OK
0233 PM CDT FRI SEP 17 2004

AREAS AFFECTED...EXTREME ERN WV PANHANDLE...MD AND EXTREME SRN PA

CONCERNING...SEVERE THUNDERSTORM POTENTIAL 

VALID 171933Z - 172130Z

THREAT OF ISOLATED TORNADOES IS EXPECTED TO SPREAD A LITTLE FARTHER
NWD INTO THE EARLY EVENING. TORNADO WATCH WILL BE ISSUED SHORTLY FOR
EXTREME ERN WV PANHANDLE...NRN MD...AND POSSIBLY EXTREME SRN PA. 

THIS AFTERNOON...A SURFACE BOUNDARY WAS LOCATED FROM MD EWD INTO DE.
THE ATMOSPHERE IS DESTABILIZING NWD AS THE BOUNDARY CONTINUES TO
RETREAT. AREA OF ASCENT ASSOCIATED WITH NEGATIVELY TILTED SHORTWAVE
TROUGH OVER NC AND VA WILL SPREAD NEWD...CONTRIBUTING TO ADDITIONAL
CONVECTIVE DEVELOPMENT NWD WITH TIME. CURRENT PRESSURE FALL
TENDENCIES REFLECT THESE TRENDS WITH AREA OF MAXIMUM FALLS CURRENTLY
LIFTING NNEWD THROUGH CNTRL VA.

..DIAL.. 09/17/2004

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

ATTN...WFO...PHI...CTP...LWX...

38957656 39367794 39917764 40137636 39777580 

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