[BNAWX] Severe Storm Outlook Narrative

[EMWIN Server]

ACUS11 KWNS 290021
SWOMCD
SPC MCD 290021
NCZ000-GAZ000-TNZ000-KYZ000-INZ000-ALZ000-290115-

MESOSCALE DISCUSSION 0323
NWS STORM PREDICTION CENTER NORMAN OK
0721 PM CDT SAT MAR 28 2009

AREAS AFFECTED...PORTIONS OF THE LOWER OH AND TN RIVER VALLEYS

CONCERNING...TORNADO WATCH 91...93...

VALID 290021Z - 290115Z

THE SEVERE WEATHER THREAT FOR TORNADO WATCH 91...93...CONTINUES.

THREAT OF TORNADOES...DMGG WINDS...AND LARGE HAIL CONTINUES FOR MUCH
OF WW0091 AND ALL OF WW0093.

00Z SURFACE ANALYSIS PLACES A 992 SURFACE LOW NEAR THE IN/KY BORDERS
WITH A COLD FRONT EXTENDING SWD INTO CNTRL AL AND A WARM FRONT
EXTENDING EWD THROUGH KY...SEWD INTO NC...AND EWD THROUGH NC TOWARDS
THE COAST. FORCED LINE OF CONVECTION ALONG THE COLD FRONT CONTINUES
TO SHOW SUPERCELLULAR STRUCTURES AND DISCRETE CELLS...ALTHOUGH WITH
DECREASING INSTABILITY...INCREASING FORCING...AND SHEAR BECOMING
ORIENTED PARALLEL TO THE LINE...CONVECTION IS BEGINNING TO TREND
TOWARDS MORE LINEAR/LESS DISCRETE EVOLUTION. AS THIS OCCURS...HAIL
AND WIND DMG WILL BECOME THE PRIMARY THREATS. HOWEVER...GIVEN
STRENGTH OF DEEP LAYER SHEAR...70+ KTS PER VAD WIND PROFILE
DATA...AND BACKED SURFACE FLOW WITHIN THE WARM SECTOR...ESPECIALLY
NEAR THE WARM FRONT...TORNADOES WILL STILL BE POSSIBLE. AREAS IN NRN
GA AND MIDDLE TN S AND E OF THE CURRENT WATCHES ARE BEING
MONITORED...AND A NEW WW DOWNSTREAM OF CURRENT CONVECTION MAY BE
NEEDED.

..HURLBUT.. 03/29/2009

...PLEASE SEE WWW.SPC.NOAA.GOV FOR GRAPHIC PRODUCT...

ATTN...WFO...MRX...JKL...FFC...LMK...OHX...IND...BMX...HUN...
PAH...

LAT...LON   34758408 34048532 34418659 38388709 38828609 38498522
            35308435 34758408

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