[BNAWX] Severe Storm Outlook Narrative

[EMWIN Server]

ACUS11 KWNS 232311
SWOMCD
SPC MCD 232310
VAZ000-NCZ000-SCZ000-TNZ000-GAZ000-240015-

MESOSCALE DISCUSSION 0262
NWS STORM PREDICTION CENTER NORMAN OK
0610 PM CDT WED MAR 23 2011

AREAS AFFECTED...ERN AND SRN WV INCLUDING ERN PANHANDLE...SWRN
VA...AND PARTS OF ERN/SRN KY

CONCERNING...TORNADO WATCH 55...

VALID 232310Z - 240015Z

THE SEVERE WEATHER THREAT FOR TORNADO WATCH 55 CONTINUES.

RECENT TRENDS IN REGIONAL RADAR MOSAIC IMAGERY /UP TO 2250Z/
INDICATED TSTMS WITHIN THE ERN/SRN EXTENT OF WW 55 HAVE EVOLVED INTO
A BROKEN LINE.  THIS TREND WOULD SUPPORT PRIMARILY A DAMAGING WIND
THREAT...ESPECIALLY GIVEN FAIRLY DEEP WLY WINDS PER AREA WSR-88D VWP
DATA WITH 40-50 KT OBSERVED AT 0.5-1 KM AGL.  HOWEVER...GIVEN
RESIDUAL INSTABILITY /MLCAPE AROUND 500 J PER KG/ ACROSS SRN KY/NRN
TN AND PARTS OF ERN WV AND EFFECTIVE SRH 100-200 M2/S2 OVER WV INTO
ERN WV PANHANDLE AND 200-400 M2/S2 VALUES OVER SERN/SRN KY...AN
ISOLATED TORNADO REMAINS POSSIBLE IN BOTH AREA WITH HIGHER SRH
VALUES.

ALTHOUGH COUNTIES CAN CONTINUE TO BE CLEARED ACROSS THE NRN EXTENT
OF WW 55...AREAS OVER CENTRAL AND WRN KY WILL NEED TO BE MONITORED
FOR A FEW ADDITIONAL HOURS /PRIOR TO DIABATIC COOLING/.  THIS
PORTION OF THE SWRN EXTENT OF WW 55 IS MARGINALLY UNSTABLE AND
STRONG SPEED SHEAR ATTENDANT TO SHORTWAVE TROUGH MOVING EWD THROUGH
IL/IND AT THIS TIME.  THUS...A THREAT FOR HAIL REMAINS WITH STORMS
THAT DEVELOP IN THE WAKE OF THE PRIMARY LINE OVER SERN/SRN KY.

..PETERS.. 03/23/2011

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

ATTN...WFO...AKQ...LWX...RAH...RNK...CAE...GSP...MRX...

LAT...LON   34638080 34788266 35118405 35568406 35998329 37038038
            37787913 37317742 36117782 35457852 34638080


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