SPC MESOSCALE DISCUSSION 0477 SE OK...N CNTRL/NE/CNTRL TX
CONCERNING...SEVERE THUNDERSTORM WATCH 123...

VALID 110650Z - 110800Z

NEW WW WILL LIKELY BE NEEDED ACROSS PARTS OF CENTRAL/NORTHEAST
TEXAS BY 08Z.  UNCERTAINTY EXISTS ABOUT NEED FOR WW NORTHEASTWARD
INTO PARTS OF EASTERN OKLAHOMA DUE TO STABILIZING INFLUENCE OF
WIDESPREAD LIGHT TO MODERATE RAIN IN ADVANCE OF MORE INTENSE LINE. 

CLUSTER OF INTENSE PRE-FRONTAL THUNDERSTORMS...DEVELOPING BENEATH
DIFLUENT UPPER FLOW REGIME ON TAIL END OF SHORT WAVE TROUGH LIFTING
INTO THE CENTRAL PLAINS...CONTINUES TO PROGRESS TOWARD THE DALLAS/
FORT WORTH METROPLEX.  ADDITIONAL LINE OF THUNDERSTORMS CONTINUES
TO DEVELOP UPSTREAM...ALONG COLD FRONT ADVANCING EAST OF THE TEXAS
PANHANDLE.  ACTIVITY MAY GRADUALLY MERGE DURING THE COURSE OF THE
NEXT FEW HOURS AS COLD FRONT BEGINS TO ACCELERATE EASTWARD...INTO
EASTERN TEXAS BY 12Z.

..KERR.. 04/11/01