SWOMCD
SPC MCD 131223
FLZ000-GAZ000-ALZ000-131400-
MESOSCALE DISCUSSION 2082
NWS STORM PREDICTION CENTER NORMAN OK
0723 AM CDT WED AUG 13 2008
AREAS AFFECTED...SE AL...S GA...N FL INCLUDING THE PNHDL
CONCERNING...TORNADO WATCH 824...
VALID 131223Z - 131400Z
THE SEVERE WEATHER THREAT FOR TORNADO WATCH 824 CONTINUES.
AMPLIFYING UPR TROUGH CONTINUES TO TRANSLATE EWD AND AT 12Z WAS OVER
AL. FLOW IN THE 0-3 KM RANGE HAS INCREASED MARKEDLY ACROSS SE
AL...SW GA AND THE FL PNHDL. EOX VWP EXHIBITS 50-55 KT WSW FLOW
ALONG THE BASE OF THIS IMPULSE.
LEADING BAND OF TSTMS HAS WEAKENED OVR N FL AND SE GA WITH PRIMARY
ATTN FOCUSING ON THE CNTRL FL PNHDL NEWD INTO S GA IN WAKE OF PRIOR
STORMS. MESOANALYSIS PLACES A WK SFC LOW ALONG THE GA/AL BORDER
VCNTY KCSG. THIS LOW SHOULD DEVELOP ENE ALONG A FRONT TOWARD THE
KAGS AREA THROUGH LATE MORNING. PERSISTENT PRESSURE FALL CENTER HAS
LOCALLY BACKED THE NEAR SFC FLOW JUST AHEAD OF THE LOW...ENHANCING
THE 0-1KM SRH. THIS TREND SHOULD CONTINUE INTO PARTS OF SRN GA
THROUGH MID-MORNING WHERE HIGHEST TORNADO THREATS WILL EXIST.
MOIST ADIABATIC PROFILES WITH WK CAPE ARE OBVIOUSLY MITIGATING
ROBUST TSTM DEVELOPMENT. BUT...VERY MOIST AIR MASS IN PLACE COUPLED
WITH SEASONABLY STRONG KINEMATIC PROFILES WILL MAINTAIN AT LEAST A
LOW RISK FOR TORNADOES. AT THE SAME TIME...ANY TSTM LINE SEGMENT
THAT CAN BECOME FAVORABLY ORIENTED TO THE WSW FLOW REGIME MAY
PRODUCE DMGG WIND GUSTS.
AS THE SFC LOW AND TRAILING PRE-FRONTAL TROUGH MOVE THROUGH THE
REGION FROM W TO E...THE SVR POTENTIAL WILL DECREASE WITH PRIMARY
SVR THREATS SHIFTING INTO PARTS OF CSTL SC LATER THIS MORNING/EARLY
AFTN.
..RACY.. 08/13/2008
...PLEASE SEE WWW.SPC.NOAA.GOV FOR GRAPHIC PRODUCT...
ATTN...WFO...CHS...CAE...TBW...JAX...FFC...TAE...BMX...MOB...
32108609 32818562 33078270 32878208 32258204 31058207
30238179 29318194 29028319 28688421 28838573 29138663
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