ZCZC SPCSWOMCD ALL
ACUS11 KWNS 262342 
SPC MCD 262342 
OHZ000-KYZ000-TNZ000-ALZ000-270045-

MESOSCALE DISCUSSION 1203
NWS STORM PREDICTION CENTER NORMAN OK
0642 PM CDT FRI JUN 26 2015

AREAS AFFECTED...MIDDLE TN TO SWRN OH

CONCERNING...SEVERE THUNDERSTORM WATCH 360...

VALID 262342Z - 270045Z

THE SEVERE WEATHER THREAT FOR SEVERE THUNDERSTORM WATCH 360
CONTINUES.

SUMMARY...PRIMARY SEVERE THREATS IN THE FORM OF ISOLATED DAMAGING
WINDS EXIST WITH A CLUSTER PROGRESSING FROM N-CNTRL KY INTO PARTS OF
WW 363 AND WITH A SLOWER MOVING LINE OF CONVECTION APPROACHING
MIDDLE TN FROM WW 359. MUCH OF WW 360 IS IN THE PROCESS OF BEING
CANCELLED EARLY PER COORDINATION WITH WFOS.

DISCUSSION...CONVECTIVELY-MODIFIED AIR HAS OVERSPREAD MOST OF
CURRENTLY VALID PORTIONS OF WW 360...WITH ANY REMAINING SEVERE
THREAT OVER THE NEXT HOUR ACROSS PARTS OF N-CNTRL KY AND OVER THE
NEXT 2-3 HOURS IN MIDDLE TN. UPSTREAM CONVECTION OVER SRN IL/SWRN
IND SHOULD STRUGGLE TO INTENSIFY GIVEN THE EXTENSIVE DOWNSTREAM
OVERTURNING DESPITE FORCED ASCENT TIED TO THE SHORTWAVE TROUGH
CROSSING IL.

..GRAMS.. 06/26/2015

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

ATTN...WFO...JKL...ILN...LMK...OHX...HUN...MEG...

LAT...LON   36128783 36278649 36848512 38408447 38818455 39128367
            38908357 37678412 36338499 35648636 34978686 35028798
            36128783 

NNNN