MESO: Mesoscale Discussion 1009

ACUS11 KWNS 092204
SWOMCD
SPC MCD 092203
KYZ000-TNZ000-INZ000-ILZ000-MOZ000-ARZ000-092330-

MESOSCALE DISCUSSION 1009
NWS STORM PREDICTION CENTER NORMAN OK
0503 PM CDT SUN JUN 09 2013

AREAS AFFECTED...PARTS OF THE LOWER OH VALLEY...MID-SOUTH

CONCERNING...SEVERE THUNDERSTORM WATCH 290...291...

VALID 092203Z - 092330Z

THE SEVERE WEATHER THREAT FOR SEVERE THUNDERSTORM WATCH
290...291...CONTINUES.

SUMMARY...HAIL/DAMAGING WIND THREATS SHOULD REMAIN LOCALIZED ACROSS
MOST OF THE REGION AND CONFINED TO ERN/SRN PORTIONS OF THE WW/S.
THESE THREATS SHOULD DEVELOP DOWNSTREAM INTO PARTS OF MIDDLE
TN/CNTRL KY...BUT AN ADDITIONAL WW IS NOT ANTICIPATED ATTM.

DISCUSSION...CONVECTION HAS LARGELY WEAKENED WITHIN INITIAL
PRE-FRONTAL CONFLUENCE BANDS THROUGH CNTRL IL AND APPROACHING THE MS
RIVER FROM MO/AR. DOWNSTREAM ENVIRONMENT IN IL/IND WILL REMAIN
UNFAVORABLE FOR STRENGTHENING OWING TO MINIMAL INSTABILITY AS
ABUNDANT CLOUD COVERAGE LIMITS SURFACE HEATING. S OF THE OH
RIVER...MORE ROBUST INSOLATION ON THE PERIPHERY OF UPPER 60S/LOWER
70S SURFACE DEW POINTS SHOULD SUPPORT A MARGINAL WIND/HAIL RISK AS
CLUSTERS DEVELOP EWD FROM WW/S 290/291.

..GRAMS.. 06/09/2013

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

ATTN...WFO...LMK...OHX...IND...PAH...ILX...MEG...LSX...

LAT...LON 37988946 38978865 39148823 39098731 38348671 37588604
36828613 35958660 35328747 35088812 35109004 36698953
37988946

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