SPC MESOSCALE DISCUSSION 2205 FOR SERN MO / NERN AR / EXTREME SRN
IL / WRN TN / WRN KY
CONCERNING...SEVERE THUNDERSTORM WATCH 798...

VALID 242053Z - 242300Z

SQUALL LINE WITH EMBEDDED SEVERE STORMS WILL CONTINUE TO TRACK EWD
INTO THE REMAINDER OF WW 798 DURING THE NEXT FEW HOURS.  DAMAGING
WINDS...LARGE HAIL AND TORNADOES CONTINUE TO BE A THREAT.

REGIONAL RADARS SHOW A SQUALL LINE EXTENDING FROM JACKSON COUNTY IL
TO PULASKI COUNTY AR AND TRACKING TO THE E AT 35-40 KT WITH
INDIVIDUAL CELLS MOVING ENE AT 40-50 KT.  REGIONAL VAD WINDS SHOW
SUFFICIENT DEEP LAYER SHEAR FOR ORGANIZED STORMS TO CONTINUE WITH
A THREAT FOR DAMAGING WINDS AND LARGE HAIL.  TORNADO THREAT REMAINS
LIKELY AS WELL...GIVEN 0-3 KM HELICITY VALUES OF 200-300 M2/S2 AT
PAH/MEM.

..PETERS.. 10/24/01