[MCD] SWOMCD

[MCD at goshenarc.org]

ACUS11 KWNS 300839
SWOMCD
SPC MCD 300839 
NCZ000-VAZ000-SCZ000-GAZ000-TNZ000-FLZ000-ALZ000-301045-

MESOSCALE DISCUSSION 2118
NWS STORM PREDICTION CENTER NORMAN OK
0339 AM CDT TUE AUG 30 2005

AREAS AFFECTED...SERN TN/SERN AL/MUCH OF THE FL PANHANDLE/ALL BUT
SERN GA

CONCERNING...TORNADO WATCH 757...

VALID 300839Z - 301045Z

TORNADO POTENTIAL CONTINUES SE AND E OF THE CENTER OF T.S. KATRINA. 
THREAT CONTINUES ACROSS PARTS OF TORNADO WATCH 757...WITH NEW WW TO
BE ISSUED PRIOR TO THE 30/10Z EXPIRATION OF THIS WW.

LATEST RADAR IMAGERY INDICATES SCATTERED/CELLULAR CONVECTION ONGOING
ATTM ACROSS PARTS OF THE SOUTHEAST...PARTICULARLY WITHIN A BAND FROM
NEAR THE GA/AL BORDER WSWWD ACROSS SERN AL INTO THE WRN FL
PANHANDLE.  INSTABILITY ACROSS MOST OF THIS REGION REMAINS LIMITED
-- BOTH ACCORDING TO OBJECTIVE ANALYSES AND LACK OF LIGHTNING
STRIKES.  NONETHELESS...LOW-LEVEL SHEAR REMAINS QUITE STRONG --
PARTICULARLY ACROSS ERN AL/WRN GA...SUPPORTING A CONTINUED THREAT
FOR LOW-LEVEL ROTATION/TORNADOES WITHIN STRONGER CONVECTIVE CELLS.

VERY MOIST LOW-LEVEL AIRMASS EXISTS ACROSS THIS REGION.  BOUNDARY
LAYER SHOULD MOISTEN NWD INTO THE APPALACHIANS REGION -- BOTH NWD
FROM THE GULF OF MEXICO AND NWWD FROM OFF THE ATLANTIC.  THIS
COMBINED WITH DAYTIME HEATING LATER THIS MORNING SHOULD BRING AN
INCREASING TORNADO THREAT NWD -- ACROSS PARTS OF ERN TN AS WELL AS E
OF THE APPALACHIANS INTO WRN SC/WRN AND CENTRAL NC.  WITH CURRENT
TORNADO WATCH SET TO EXPIRE AT 30/10Z...NEW WW WILL BE REQUIRED --
LIKELY EXTENDING FROM PARTS OF GA NNEWD TOWARD WRN VA.

..GOSS.. 08/30/2005

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

ATTN...WFO...RAH...RNK...CAE...GSP...MRX...FFC...TAE...

36588014 35437992 32298319 30788372 30958514 32418477
35498524 36618332