SWOMCD
SPC MCD 112250
OHZ000-KYZ000-INZ000-112345-
MESOSCALE DISCUSSION 0459
NWS STORM PREDICTION CENTER NORMAN OK
0550 PM CDT WED APR 11 2007
AREAS AFFECTED...ERN IND...WRN OH...NRN KY
CONCERNING...SEVERE THUNDERSTORM WATCH 126...
VALID 112250Z - 112345Z
THE SEVERE WEATHER THREAT FOR SEVERE THUNDERSTORM WATCH 126
CONTINUES.
ORGANIZED LINE OF TSTMS WITH EMBEDDED BOWING SEGMENTS WILL CONTINUE
TO RACE EWD AT AROUND 45 KTS...REACHING THE IND/OH BORDER AROUND
00Z. THREAT FOR SEVERE WIND GUSTS AND MARGINALLY SEVERE HAIL WILL
REMAIN WITH THIS LINE...DESPITE MEAGER INSTABILITY. AN ADDITIONAL WW
WILL BE LIKELY DOWNSTREAM INTO PORTIONS OF WRN OH AND NERN KY.
LINE OF INTENSE TSTMS WITH A RECENT HISTORY OF SEVERE WIND GUSTS
WITHIN BOWING STRUCTURES /51 KTS MEASURED AT BMG AT 2149Z AND 52 KTS
AT SDF AT 2212Z/ HAS NOW REACHED THE I-65 CORRIDOR...INCLUDING THE
INDIANAPOLIS METRO AREA. AIR MASS DOWNSTREAM OF THIS LINE WILL
LIKELY DESTABILIZE SOMEWHAT FROM THE EFFECTS OF EARLIER CONVECTION
THIS AFTERNOON WITH A NARROW AREA OF CLEARING NOTED ON VIS IMAGERY.
DESPITE MUCAPES AOB 500 J/KG...STRONG DEEP-LAYER SHEAR PROFILES WILL
LIKELY BE SUFFICIENT TO MAINTAIN A CONVECTIVE WIND THREAT THROUGH
THE EARLY EVENING.
.GRAMS.. 04/11/2007
..PLEASE SEE WWW.SPC.NOAA.GOV FOR GRAPHIC PRODUCT...
ATTN...WFO...RLX...CLE...JKL...ILN...LMK...IWX...IND...
37878560 39118604 40278670 41018630 41138486 40988406
40628339 39468311 38548311 37958346
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