SPC MESOSCALE DISCUSSION 2297 FOR ERN AR...WRN TX THROUGH MUCH OF
CNTRL AND NRN MS AND PORTIONS OF WRN KY
CONCERNING...TORNADO WATCH 827...828...

VALID 270414Z - 270500Z

TORNADO WATCHES 827 AND 828 WILL EXPIRE AT 05Z AT WHICH TIME
ANOTHER WW WILL LIKELY BE ISSUED FOR PORTIONS OF NERN LA...WRN
TN...PORTIONS OF MS...EXTREME SERN AR AND POSSIBLY PORTIONS OF 
WRN KY.

STORMS HAVE CONSOLIDATED INTO A LINE EXTENDING FROM W TN NEAR
MEMPHIS SWWD INTO EXTREME NWRN MS...EXTREME SERN AR AND INTO NRN
LA. INDIVIDUAL STORMS WITHIN THE LINE CONTINUE TO SHOW SUPERCELL
CHARACTERISTICS AS THEY MOVE NEWD. LOW LEVEL SHEAR REMAINS STRONG
ALONG AND JUST W OF LOW LEVEL JET AXIS...ESPECIALLY FROM NRN MS
THROUGH WRN TN AND KY. MOREOVER...A WEAK MESOLOW WAS INDICATED ON
THE LATEST SURFACE ANALYSIS JUST W OF MEMPHIS WITH SLIGHTLY BACKED
SURFACE FLOW E OF THIS FEATURE. ATMOSPHERE CONTINUES TO DESTABILIZE
NWD WITH TIME AND THE SEVERE THREAT IS EXPECTED TO PERSIST ANOTHER
FEW HOURS. DAMAGING WIND ASSOCIATED WITH LEWP/BOW ECHO STRUCTURES
AS WELL AS ISOLATED TORNADOES SHOULD BE THE PRIMARY THREATS. 

..DIAL.. 11/27/01