ZCZC SPCSWOMCD ALL
ACUS11 KWNS 232259 
SPC MCD 232259 
KYZ000-INZ000-TNZ000-240100-

MESOSCALE DISCUSSION 2048
NWS STORM PREDICTION CENTER NORMAN OK
0459 PM CST WED DEC 23 2015

AREAS AFFECTED...WRN AND CNTRL KY...SRN IND...SW OH

CONCERNING...TORNADO WATCH 560...

VALID 232259Z - 240100Z

THE SEVERE WEATHER THREAT FOR TORNADO WATCH 560 CONTINUES.

SUMMARY...A THREAT FOR TORNADOES...WIND DAMAGE AND LARGE HAIL WILL
MOVE EWD ACROSS SRN IND AND WRN KY OVER THE NEXT FEW HOURS. THE
SEVERE THREAT SHOULD IMPACT ERN PARTS OF WW 560 IN THE 00Z TO 02Z
TIMEFRAME. WW ISSUANCE MAY BE NEEDED TO THE EAST OF WW 560 BY THE
02Z WATCH EXPIRATION.

DISCUSSION...THE LATEST SFC ANALYSIS SHOWS A MOIST AXIS EXTENDING
NNEWD FROM WRN TN INTO WRN KY WHERE SFC DEWPOINTS ARE IN THE LOWER
TO MID 60S F. THE MOIST AXIS IS LOCATED JUST AHEAD OF A
WELL-DEVELOPED BOWING LINE SEGMENT EXTENDING FROM OWENSBORO KY SWWD
TO JUST NORTHWEST OF HOPKINSVILLE KY. IN ADDITION TO THE MOIST
AIRMASS...SHEAR PROFILES ARE FAVORABLE FOR SEVERE STORMS. THE
HOPKINSVILLE WSR-88D VWP SHOWS VERY STRONG SPEED SHEAR AND
SUBSTANTIAL VEERING WITH HEIGHT FROM SFC TO 3 KM. THIS WIND PROFILE
IS BEING ENHANCED BY A 50 TO 60 KT LOW-LEVEL JET CURRENT ANALYZED
OVER CNTRL KY. AS THE BOWING LINE SEGMENT CONTINUES TO MOVE EWD
TOWARD THE LOW-LEVEL JET...ROTATING CELLS EMBEDDED IN THE LINE MAY
PRODUCE TORNADOES. TORNADOES WILL ALSO BE POSSIBLE AHEAD OF THE LINE
IF DISCRETE CELLS CAN INITIATE ALONG THE MOIST AXIS. WIND DAMAGE
WILL BE LIKELY WITH BOWING SEGMENTS AND LARGE HAIL MAY ALSO OCCUR
WITH THE MORE INTENSE CORES.

..BROYLES/THOMPSON.. 12/23/2015

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

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

LAT...LON   37008796 37778712 38698677 38708484 38308417 37358414
            36738469 36658602 36628739 37008796 

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