[MCD] SWOMCD

[MCD at goshenarc.org]

ACUS11 KWNS 201843
SWOMCD
SPC MCD 201843 
SCZ000-GAZ000-201945-

MESOSCALE DISCUSSION 0932
NWS STORM PREDICTION CENTER NORMAN OK
0143 PM CDT FRI MAY 20 2005

AREAS AFFECTED...PORTIONS OF ERN GA AND SRN SC

CONCERNING...SEVERE THUNDERSTORM WATCH 301...

VALID 201843Z - 201945Z

THREAT FOR DAMAGING WINDS AND HAIL WILL CONTINUE THIS AFTERNOON
ACROSS WW 301. THROUGH 20Z...GREATEST THREAT FOR DAMAGING WINDS
WILL BE ACROSS NRN PORTIONS OF WW 301...EAST OF A LINE FROM
EDGEFIELD COUNTY SC TO RICHMOND COUNTY GA.

REGIONAL RADARS INDICATED A WELL DEFINED BOW ECHO EXTENDING FROM
EDGEFIELD COUNTY SC TO RICHMOND COUNTY GA.  AIR MASS DOWNSTREAM
REMAINS MODERATELY UNSTABLE WITH MLCAPE VALUES UP TO 1500-2000
J/KG...SUPPORTING A CONTINUED EWD MOVEMENT OF THE BOW AT 40-45 KT. 
ORIENTATION OF INSTABILITY GRADIENT E-W ACROSS SRN SC...SUGGESTS
THIS WILL BE THE ZONE FOR GREATEST THREAT FOR DAMAGING WINDS THROUGH
20Z.  DEEP LAYER SHEAR IS STRONGER OVER NRN PORTIONS OF WW 301 WHICH
SHOULD ENABLE THE BOW STRUCTURE TO REMAIN ORGANIZED.

ELSEWHERE...THUNDERSTORMS WILL CONTINUE TO DEVELOP OVER CENTRAL
PORTIONS OF THE WATCH WITHIN AXIS OF STRONGEST INSTABILITY...AND
ALSO ALONG THE WWD MOVING COASTAL BOUNDARY IN THE ERN PORTIONS OF WW
301.

..PETERS.. 05/20/2005

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

ATTN...WFO...ILM...CHS...CAE...JAX...FFC...

33918219 33917997 31388041 31378262 

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