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ACUS11 KWNS 152144
SWOMCD
SPC MCD 152144 
GAZ000-ALZ000-152245-

MESOSCALE DISCUSSION 0939
NWS STORM PREDICTION CENTER NORMAN OK
0444 PM CDT THU MAY 15 2008

AREAS AFFECTED...W-CNTRL GA

CONCERNING...SEVERE POTENTIAL...WATCH POSSIBLE 

VALID 152144Z - 152245Z

THE THREAT FOR LOW-TOPPED SUPERCELLS CAPABLE OF AN ISOLATED TORNADO
APPEARS TO BE INCREASING AND CONVECTIVE TRENDS ARE BEING MONITORED
FOR A WW.

RECENT TRENDS IN RADAR DATA SHOW AN INCREASE IN STORM INTENSITY OVER
E-CNTRL AL AND W-CNTRL GA.  THIS ACTIVITY APPEARS TO BE COLOCATED
WITH A MIDLEVEL VORTICITY MAXIMUM /MCV/ AND ATTENDANT SURFACE LOW. 
LATEST SURFACE OBSERVATIONS OVER ERN AL INDICATE A WELL-DEFINED
PRESSURE FALL CENTER WITH THIS LOW IN ADDITION TO AN OUTFLOW
BOUNDARY WHICH EXTENDS FROM THIS LOW ENEWD TO NEAR MCN TO N OF AGS. 
MODIFICATION OF A RUC PROXIMITY SOUNDING FOR CURRENT SURFACE
CONDITIONS INVOF THIS LOW YIELDS SBCAPES OF 400-700 J/KG. 
MOREOVER...ACCOMPANYING FORECAST WIND PROFILE AND MAXWELL AFB VWP
INDICATE STRONG LOW-LEVEL SHEAR WITH 0-1 KM SRH OF 300-350 M2/S2. 
GIVEN THE MOIST BOUNDARY LAYER AND RESULTANT LOW LCL HEIGHTS...THE
POTENTIAL WILL EXIST FOR A COUPLE OF LOW-TOPPED SUPERCELLS CAPABLE
OF A TORNADO.

..MEAD.. 05/15/2008

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

ATTN...WFO...FFC...BMX...

32768545 33358506 33778425 33578349 32888320 32338351
32198509 

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