Severe Storm Outlook Narrative (AC)
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000
ACUS11 KWNS 271722
SWOMCD
SPC MCD 271722
OHZ000-KYZ000-INZ000-271845-

MESOSCALE DISCUSSION 0806
NWS STORM PREDICTION CENTER NORMAN OK
1222 PM CDT WED MAY 27 2015

AREAS AFFECTED...SERN INDIANA/SWRN OH/PARTS OF WRN AND CENTRAL KY

CONCERNING...SEVERE POTENTIAL...WATCH POSSIBLE

VALID 271722Z - 271845Z

PROBABILITY OF WATCH ISSUANCE...60 PERCENT

SUMMARY...STORMS ARE FORECAST TO INCREASE IN COVERAGE/INTENSITY THIS
AFTERNOON AHEAD OF AN MCV CROSSING SWRN INDIANA ATTM.  RISK FOR
LOCALLY DAMAGING WINDS MAY WARRANT WW ISSUANCE IN THE NEXT HOUR OR
SO.

DISCUSSION...LATEST RADAR AND VISIBLE SATELLITE LOOPS SHOW AN MCV
MOVING NEWD ACROSS SWRN INDIANA ATTM...WITH WITH A GRADUALLY
HEATING/DESTABILIZING AIRMASS ALONG AND S OF THE NEWD TRACK OF THIS
FEATURE.  CONVECTION HAS BEGUN TO RE-INTENSIFY ACROSS SRN
INDIANA/WRN KY...AND EXPECT THIS TREND TO CONTINUE OVER THE NEXT
COUPLE OF HOURS.

MODELS SUGGEST THAT FLOW ALOFT WILL GRADUALLY WEAKEN WITH TIME AS
THE UPPER SYSTEM OVER THE UPPER GREAT LAKES REGION CONTINUES
SHIFTING AWAY TO THE NE INTO ONTARIO/QUEBEC.  IN THE MEAN TIME
HOWEVER...RISK FOR LOCALLY DAMAGING WINDS MAY BECOME SUFFICIENT --
PARTICULARLY INVOF THE MCV WHERE SOME LOCAL ENHANCEMENT OF THE FLOW
FIELD ALOFT EXISTS -- TO WARRANT WW ISSUANCE.

..GOSS/MEAD.. 05/27/2015

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

ATTN...WFO...RLX...JKL...ILN...LMK...IND...PAH...

LAT...LON   40268459 40098280 39478243 37768373 36658506 36728757
            37988647 40228550 40268459



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