MESO: Mesoscale Discussion 1935

ACUS11 KWNS 081925
SWOMCD
SPC MCD 081925
MDZ000-VAZ000-NCZ000-SCZ000-082030-

MESOSCALE DISCUSSION 1935
NWS STORM PREDICTION CENTER NORMAN OK
0225 PM CDT SAT SEP 08 2012

AREAS AFFECTED...LOWER SRN MD...MUCH OF CNTRL NC...MUCH OF CNTRL VA

CONCERNING...SEVERE THUNDERSTORM WATCH 638...

VALID 081925Z - 082030Z

THE SEVERE WEATHER THREAT FOR SEVERE THUNDERSTORM WATCH 638
CONTINUES.

SUMMARY...THE SVR THREAT IS INCREASING ACROSS WW 638.

DISCUSSION...THE AIR MASS ACROSS THE PIEDMONT/COASTAL PLAIN REGION
CONTINUES TO DESTABILIZE AS INSOLATION HAS SUPPORTED TEMPERATURES IN
THE MIDDLE/UPPER 80S AMIDST DEWPOINTS IN THE LOWER 70S...YIELDING
MLCAPE OF 1000-2000 J/KG PER MODIFIED 12Z RAOBS. ISOLATED TO WIDELY
SCATTERED STORMS THAT DEVELOPED ALONG A PRE-FRONTAL/LEE TROUGH WILL
CONTINUE TO INTENSIFY AS THEY INTERACT WITH THE AFOREMENTIONED
BUOYANCY...WHILE ADDITIONAL STORMS DEVELOP ALONG/JUST AHEAD OF A
COLD FRONT THAT CURRENTLY LIES NEAR THE NC/TN BORDER INTO WRN VA.
THE MORE ORGANIZED/LINEAR FORCING FOR ASCENT ACCOMPANYING THE FRONT
WILL HAVE THE POTENTIAL TO SUPPORT GREATER COVERAGE OF LINEAR
CONVECTIVE SEGMENTS WITH EMBEDDED BOWING STRUCTURES AMIDST 20-35 KT
OF EFFECTIVE BULK SHEAR.

..COHEN.. 09/08/2012

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

ATTN...WFO...AKQ...LWX...RAH...RNK...CAE...GSP...

LAT...LON 38287904 38287554 35047878 35038215 38287904

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