MESO: Mesoscale Discussion 1437

ACUS11 KWNS 082041
SWOMCD
SPC MCD 082041
KYZ000-OHZ000-INZ000-082145-

MESOSCALE DISCUSSION 1437
NWS STORM PREDICTION CENTER NORMAN OK
0341 PM CDT SUN JUL 08 2012

AREAS AFFECTED...IN...KY...OH

CONCERNING...SEVERE THUNDERSTORM WATCH 482...

VALID 082041Z - 082145Z

THE SEVERE WEATHER THREAT FOR SEVERE THUNDERSTORM WATCH 482
CONTINUES.

SUMMARY...EXTENSIVE THUNDERSTORM DEVELOPMENT ACROSS THE WATCH AREA
WILL CONTINUE TO DRIFT GENERALLY ESEWD ACROSS THE OH RIVER THROUGH
THE REST OF THE AFTERNOON. DAMAGING WINDS AND TORRENTIAL RAIN WILL
REMAIN THE PRIMARY HAZARDS WITH THIS ACTIVITY.

DISCUSSION...STORMS HAVE BECOME SO EXTENSIVE ALONG AND SOUTH OF THE
FRONTAL ZONE SETTLING INTO THE AREA THAT IT MAKES IT DIFFICULT TO
DEFINE THE ACTUAL BOUNDARY. A RING OF OUTFLOW FROM INITIAL ACTIVITY
IN THE LOUISVILLE AREA HAS SPREAD SOUTH ACROSS NRN KY AND WAS
PROVIDING A FOCUS FOR ADDITIONAL DEVELOPMENT WITHIN A VERY MOIST AND
STRONGLY UNSTABLE AIRMASS. THE MULTICELL STORMS WILL GENERALLY DRIFT
EWD OR ESEWD ACROSS THE REMAINDER OF THE WATCH AREA INTO THE EARLY
EVENING GIVEN WEAK BUT SLOWLY INCREASING WNWLY FLOW ALOFT. CELL
MERGERS AND COLLAPSING STORMS MAY OCCASIONALLY RESULT IN DAMAGING
DOWNBURST WINDS AND PERHAPS SOME HAIL. OVERALL SLOW STORM MOTION
WILL CONTRIBUTE TO AREAS OF MOSTLY BRIEF TORRENTIAL RAIN. GIVEN
GENERALLY WEAK FORCING AND SHEAR...A MARKED DECREASE IN STORM
INTENSITY SHOULD ENSUE AS WIDESPREAD AIRMASS OVERTURNING CONTINUES
AND INSTABILITY DECREASES INTO THIS EVENING.

..CARBIN.. 07/08/2012

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

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

LAT...LON 38088270 37478225 37468530 37648704 38778707 39258706
39228426 38908267 38088270

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