[MCD] SWOMCD

[MCD at goshenarc.org]

ACUS11 KWNS 231636
SWOMCD
SPC MCD 231635 
MDZ000-VAZ000-DCZ000-PAZ000-WVZ000-231830-

MESOSCALE DISCUSSION 0676
NWS STORM PREDICTION CENTER NORMAN OK
1135 AM CDT SAT APR 23 2005

AREAS AFFECTED...VA...MD...SRN PA

CONCERNING...SEVERE THUNDERSTORM POTENTIAL 

VALID 231635Z - 231830Z

...SEVERE THUNDERSTORM WATCH MAY BE REQUIRED FOR PORTIONS OF THE
MIDDLE ATLANTIC...

STRONG HEATING AHEAD OF UPPER TROUGH HAS AIDED DESTABILIZATION EAST
OF THE APPALACHIANS FROM NRN NC INTO EXTREME SRN PA.  AS A
RESULT...LOW LEVEL LAPSE RATES ARE NOW RELATIVELY STEEP WITH
7.5-8C/KM VALUES OBSERVED.  THIS SUPPORTS THE RECENT BOUNDARY LAYER
CU DEVELOPMENT AS SCATTERED SHOWERS ARE SLOWLY DEEPENING.  WITH TIME
THUNDERSTORMS WILL EVOLVE...POSSIBLY BECOMING ORGANIZED IN THE FORM
OF A SQUALL LINE WITH EMBEDDED BOWS ALONG LEADING EDGE OF STRONGEST
FORCING.  WW WILL BE CONSIDERED FOR THIS AREA BY 17-18Z.

..DARROW.. 04/23/2005

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

ATTN...WFO...AKQ...CTP...LWX...RNK...

37257908 38937840 40067871 39657685 37207696 

WWWW