[BNAWX] Severe Storm Outlook Narrative

[EMWIN Server]

ACUS11 KWNS 271807
SWOMCD
SPC MCD 271806
NCZ000-SCZ000-GAZ000-TNZ000-ALZ000-271900-

MESOSCALE DISCUSSION 1352
NWS STORM PREDICTION CENTER NORMAN OK
0106 PM CDT SAT JUN 27 2009

AREAS AFFECTED...MIDDLE/ERN TN...N GA...WRN/CNTRL SC/NC

CONCERNING...SEVERE POTENTIAL...WATCH POSSIBLE

VALID 271806Z - 271900Z

THUNDERSTORMS WILL CONTINUE TO INCREASE IN COVERAGE THROUGH THE
AFTERNOON...GRADUALLY SPREADING SEWD. DMGG WINDS AND MARGINAL TO
SEVERE HAIL CAN BE ANTICIPATED WITH STRONGER STORMS.

VERY LITTLE INITIAL CLOUD COVER AND SLIGHT DOWNSLOPING HAS AIDED IN
TEMPERATURES QUICKLY WARMING INTO THE 90S ACROSS A BROAD AREA FROM
TN/GA EWD INTO THE CAROLINAS...WHILE DEW POINTS REMAIN IN THE UPPER
60S/LOWER 70S. CINH HAS BECOME NEARLY NEGLIGIBLE...AND THE
ATMOSPHERE HAS LARGELY BECOME MODERATELY TO VERY UNSTABLE. VISIBLE
SATELLITE IMAGERY SHOWS THE BEGINNINGS OF CONVECTION...AND
OCCASIONAL LIGHTNING STRIKES HAVE BEEN OBSERVED IN NRN GA AND
PORTIONS OF NC. ALTHOUGH NO NOTICEABLE SHORT WAVE CAN BE DISCERNED
ON WATER VAPOR...DARKENING IN THE IMAGERY AROUND THE BASE OF AN
UPPER TROUGH AND AHEAD OF UPPER RIDGING TO THE W MAY INDICATE SUBTLE
LARGE SCALE ASCENT FROM REMNANT VORTICITY MAXIMUMS THAT HAVE SPAWNED
CONVECTION IN PREVIOUS DAYS. SURFACE WIND FIELDS SEEM TO INDICATE
TWO AREAS OF CONFLUENCE THAT WILL LIKELY BE THE INITIAL FOCUS FOR
DEVELOPMENT...ONE EXTENDING JUST SOUTH OF NASHVILLE TN ESEWD TOWARDS
ATHENS GA...AND ANOTHER FROM NEAR COLUMBIA SC NEWD TO FRANKLIN VA.
EFFECTIVE SHEAR REMAINS STRONGER ACROSS ERN GA AND INTO THE
CAROLINAS...AND AS STORMS PROGRESS SEWD INTO THESE AREAS...SOME
ORGANIZATION MAY BE POSSIBLE...WITH ISOLD CELLS AND MULTICELLULAR
CLUSTERS CAPABLE OF DMGG WINDS AND OCCASIONALLY LARGE HAIL.

..HURLBUT.. 06/27/2009

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

ATTN...WFO...RAH...ILM...CHS...CAE...GSP...MRX...FFC...OHX...
HUN...

LAT...LON   33718033 32908164 32468228 32978357 33668441 34768547
            35348697 35748706 35958480 35418184 35688034 36097948
            36217811 34787872 33718033



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