..20Z UPDATE
..ARKLATEX INTO GA
RECENT SURFACE ANALYSIS PLACES A RESIDUAL OUTFLOW BOUNDARY FROM THE
MLU (IN NORTHEAST LA) VICINITY EASTWARD TO NEAR MGM (IN CENTRAL AL)
AND THEN MORE SOUTHEAST TO NORTH OF TLH (IN THE EASTERN FL
PANHANDLE). MOST OF THE ONGOING STORMS ARE JUST NORTH OF THIS
BOUNDARY, INCLUDING THE FEW TORNADIC SUPERCELLS OVER SOUTHEAST GA.
THIS AREA WAS ADDRESSED IN RECENTLY ISSUED MCD 1043, WHICH MENTIONS
THAT A CORRIDOR OF GREATER TORNADO POTENTIAL MAY BE EVOLVING ACROSS
PORTIONS OF SOUTHERN GA. LONGER-LIVED SUPERCELLS WILL LIKELY
CONTINUE WITH A RISK FOR LARGE HAIL AND TORNADOES (POSSIBLY STRONG)
FOR THE NEXT COUPLE OF HOURS.
DEVELOPMENT FARTHER WEST ACROSS NORTHERN LA HAS SHOWN A TREND
TOWARDS MORE LINEAR ORGANIZATION/UPSCALE GROWTH, WITH THE OUTFLOW
BOUNDARY POTENTIALLY PROVIDING A FAVORABLE CORRIDOR FOR A
SIGNIFICANT SEVERE-WIND THREAT INTO CENTRAL MS. SEVERE THUNDERSTORM
WATCH #293, WHICH CONTAINS PARTICULARLY DANGEROUS SITUATION WORDING,
WAS RECENTLY ISSUED TO COVER THIS THREAT.
SEVERAL BOWING SEGMENTS AND SUPERCELLS ARE ONGOING BETWEEN THESE TWO
AREAS (I.E. ACROSS CENTRAL MS AND CENTRAL AL), WITH VERY LARGE HAIL
AND STRONG GUSTS POSSIBLE WITH THESE STORMS AS WELL. GIVEN THE
ROBUST VERTICAL SHEAR AND STRONG/EXTREME BUOYANCY, THE SEVERE THREAT
IS EXPECTED TO CONTINUE ACROSS THESE AREAS THROUGHOUT THE EVENING AS
WELL.