SPC MESOSCALE DISCUSSION 0528 FOR SRN OK...NRN TX...SWRN AR...NWRN
LA
CONCERNING...TORNADO WATCH 142...

VALID 142354Z - 150200Z

SURFACE WARM FRONT HAS MOVED LITTLE OVER THE LAST FEW HOURS AND
EXTENDS FROM NEAR SHV...NWWD TO NEAR SPS.  ONE LONG-LIVED
SUPERCELL...JUST NORTH OF THE BOUNDARY...CONTINUES TO TRACK ESEWD
INTO NRN BRYAN COUNTY OK...AND EVENTUALLY CHOCTAW COUNTY.  GIVEN
THE PROXIMITY TO THE BOUNDARY...SHEAR PROFILES REMAIN VERY
FAVORABLE FOR SUPERCELLS AND POSSIBLE TORNADO DEVELOPMENT.

OTHER STORMS ARE BEGINNING TO DEVELOP NWD ACROSS NWRN TX...SW OF
SPS.  THIS ACTIVITY SHOULD INCREASE AND MOVE INTO WRN PORTIONS OF
WW IN THE NEXT 1-2 HOURS. 


..DARROW.. 04/14/01