Severe Storm Outlook Narrative (AC)
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000
ACUS11 KWNS 110052
SWOMCD
SPC MCD 110051
OHZ000-INZ000-110145-

MESOSCALE DISCUSSION 1713
NWS STORM PREDICTION CENTER NORMAN OK
0751 PM CDT WED SEP 10 2014

AREAS AFFECTED...NRN OH INTO CENTRAL INDIANA

CONCERNING...TORNADO WATCH 501...

VALID 110051Z - 110145Z

THE SEVERE WEATHER THREAT FOR TORNADO WATCH 501 CONTINUES.

SUMMARY...MARGINAL DAMAGING WIND/TORNADO RISK MAY CONTINUE FOR A FEW
HOURS THROUGH LATE EVENING. WATCH 501 WILL BE ALLOWED TO EXPIRE AT
01Z IN OH...BUT MAY NEED LOCAL EXTENSION IN INDIANA.

DISCUSSION...CONVECTION PERSISTS IN A MOIST/WEAKLY UNSTABLE
ENVIRONMENT WITH SUBSTANTIAL LOW-LEVEL SHEAR...PER 00Z SOUNDINGS.
THE LOSS OF DAYTIME HEATING WILL RESULT IN A GRADUAL REDUCTION IN
ALREADY MARGINAL BUOYANCY...THOUGH WIND PROFILES WILL REMAIN
FAVORABLE FOR STORM-SCALE ROTATION.  THUS...SOME RISK FOR ISOLATED
DAMAGING GUSTS AND PERHAPS A TORNADO WILL CONTINUE...THOUGH THE
OVERALL SEVERE RISK APPEARS TO BE MARGINAL FOR THE CONTINUATION OF A
TORNADO WATCH IN OH.  THE SOMEWHAT STRONGER BUOYANCY EXISTS FROM SRN
IL INTO INDIANA...WHERE A LOCAL EXTENSION OF THE WATCH MAY BE
NEEDED.

..THOMPSON/HART.. 09/11/2014

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

ATTN...WFO...CLE...ILN...IWX...IND...

LAT...LON   41388130 40818165 40598187 40338251 40188315 39088643
            39018740 39358750 40258565 40698463 40988344 41218302
            41648236 41718165 41618144 41388130



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