[BNAWX] Severe Storm Outlook Narrative

[EMWIN Server]

ACUS11 KWNS 291339
SWOMCD
SPC MCD 291338
OHZ000-KYZ000-TNZ000-INZ000-291445-

MESOSCALE DISCUSSION 0179
NWS STORM PREDICTION CENTER NORMAN OK
0738 AM CST WED FEB 29 2012

AREAS AFFECTED...FAR SWRN-SRN OH/FAR N CENTRAL-NERN KY

CONCERNING...TORNADO WATCH 46...47...

VALID 291338Z - 291445Z

THE SEVERE WEATHER THREAT FOR TORNADO WATCH 46...47...CONTINUES.

ONGOING NE-SW SQLN OVER SRN IND TO CENTRAL/SWRN KY WILL ADVANCE EWD
WITH A CONTINUED THREAT FOR DAMAGING WINDS AND A FEW TORNADOES.

AIR MASS HAS CONTINUED TO DESTABILIZE DURING THE OVERNIGHT TO
MORNING PERIOD INTO FAR SWRN-SRN OH WITH MUCAPE EXCEEDING 500 J/KG.
DEEP LAYER SHEAR WILL CONTINUE TO INCREASE THIS MORNING AS STRONG
WSWLY MIDLEVEL WINDS CONTINUE TO SPREAD INTO THE OH VALLEY ATOP
STRONG SWLY LOW LEVEL FLOW.  KILN WSR-88D VAD DATA INDICATED VEERING
LOW LEVEL WINDS WITH VERY STRONG TROPOSPHERIC WINDS RESULTING IN
EFFECTIVE BULK SHEAR STRENGTHENING IN EXCESS OF 60 KT...SFC-1 KM
SHEAR EXCEEDING 50 KT...AND 0-1 KM SRH EXCEEDING 600 M2/S2.  THESE
KINEMATICS COMBINED WITH FURTHER BOUNDARY LAYER DESTABILIZATION WILL
ALLOW FOR THE EWD MAINTENANCE OF THE ONGOING LINE OF SEVERE STORMS
NOW EXTENDING FROM SERN IND TO WRN KY AND NRN AR.

..PETERS.. 02/29/2012

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

ATTN...WFO...RLX...MRX...JKL...ILN...LMK...OHX...PAH...MEG...

LAT...LON   36688717 37548684 39158506 39278446 39478272 38638284
            37068397 36588433 36098506 35988544 35918740 35848824
            36618802 36688717



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