[MCD] SWOMCD

[MCD at goshenarc.org]

ACUS11 KWNS 072210
SWOMCD
SPC MCD 072207 
NCZ000-SCZ000-GAZ000-072300-

MESOSCALE DISCUSSION 2185
NWS STORM PREDICTION CENTER NORMAN OK
0507 PM CDT TUE SEP 07 2004

AREAS AFFECTED...EXTREME ERN GA...SC AND SERN NC

CONCERNING...TORNADO WATCH 809...810...

VALID 072207Z - 072300Z

THE THREAT FOR ISOLATED TORNADOES IS EXPECTED TO PERSIST INTO THE
EVENING. THEREFORE...TORNADO WATCHES 809 AND 810 WILL BE REPLACED
SHORTLY BY ANOTHER TORNADO WATCH FOR PARTS OF EXTREME ERN GA...MUCH
OF SC...INTO PARTS OF SRN NC.

TROPICAL DEPRESSION FRANCES WAS NEARING CNTRL GA AND CONTINUES
MOVING IN A GENERAL NWD DIRECTION. SEE DISCUSSIONS FROM HPC FOR
ADDITIONAL INFORMATION. A SUBTLE BOUNDARY EXTENDS THROUGH N CNTRL
SC. AN INFLUX OF WARM MOIST AIR FROM THE GULF STREAM CONTINUES
ADVECTING NWWD INTO MUCH OF SC AND SRN NC...AND LATEST VISIBLE
IMAGERY CONTINUES TO SHOW A ZONE OF PARTIAL CLEARING ADVECTING NWD
INTO THE SRN HALF OF THIS STATE. STRONG LOW LEVEL SHEAR WITH 0-1 KM
STORM RELATIVE HELICITY IN EXCESS OF 300 M2/S2 PERSIST E OF THE
CENTER OF FRANCES AND ESPECIALLY ALONG AND N OF THE E-W BOUNDARY
OVER SC. GREATEST THREAT FOR ISOLATED TORNADOES SHOULD CONTINUE WITH
SUPERCELL STORMS THAT DEVELOP IN THE HIGHER LOW LEVEL THETA-E REGIME
OVER SC AND SRN NC AS THEY MOVE NWD AND INTERACT WITH THE BOUNDARY.
THOUGH AN OVERALL DECREASE IN ACTIVITY MAY OCCUR LATER THIS EVENING
AS THE BOUNDARY LAYER STABILIZES...SOME THREAT FOR ISOLATED
TORNADOES IS EXPECTED TO PERSIST WELL INTO TONIGHT.

..DIAL.. 09/07/2004

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

ATTN...WFO...RAH...ILM...CHS...CAE...GSP...FFC...

34257778 33787869 33067947 32328078 31658155 33658256
34918326 35097861 

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