[BNAWX] Severe Storm Outlook Narrative

[EMWIN Server]

ACUS11 KWNS 270746
SWOMCD
SPC MCD 270745
TNZ000-MOZ000-ARZ000-MSZ000-270815-

MESOSCALE DISCUSSION 0159
NWS STORM PREDICTION CENTER NORMAN OK
0145 AM CST FRI FEB 27 2009

AREAS AFFECTED...ERN AR...FAR WRN TN...EXTREME NWRN MS

CONCERNING...SEVERE THUNDERSTORM WATCH 33...35...

VALID 270745Z - 270815Z

THE SEVERE WEATHER THREAT FOR SEVERE THUNDERSTORM WATCH
33...35...CONTINUES.

SVR TSTM WATCH 33 IS SET TO EXPIRE AT 08Z.

PRIMARY FORCING FOR LARGE SCALE ASCENT WAS BEGINNING TO FOCUS NORTH
OF THE MEMPHIS AREA NEWD INTO THE OH VLY EARLY THIS MORNING.  VWP
PLOTS SUGGEST A QUICKLY VEERING LLVL WIND FIELD OVER AR...WITH
STRONGEST LLJ BECOMING CONCENTRATED FROM NWRN TN INTO SWRN OH. AS
SUCH...HIGHEST POTENTIAL FOR DMGG WIND GUSTS/HAIL THROUGH THE NEXT
FEW HOURS SHOULD BE ACROSS FAR NERN AR...NWRN TN AND POINTS NEWD
FROM THERE.

FARTHER S...GENERATION ZONE FOR NEW CONVECTIVE TOWERS HAS GRADUALLY
BEEN SHIFTING OUT OF SWRN AR INTO SERN AR/NWRN MS WHERE WEAKER SWLY
LLJ COMPONENT IMPINGES UPON CONVECTIVELY COOLED ENVIRONMENT.
EARLIER SEMI-ORGANIZED CELL STRUCTURES HAVE BECOME ILL-DEFINED AS
OVERALL SHEAR IN THE LOWEST 3 KM WEAKENS WITH VEERING/WEAKENING WIND
PROFILES.  AS A RESULT...ONLY ISOLD HAIL/GUST WIND POTENTIAL SHOULD
EXIST ACROSS SRN SECTIONS OF WW 35 AND THE REMAINING PORTIONS OF
EXPIRING WW 33.

..RACY.. 02/27/2009

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

ATTN...WFO...MEG...LZK...

LAT...LON   34249344 36319039 36008952 34799017 33599170 34249344



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