[MCD] SWOMCD

Tue Jul 4 00:33:53 UTC 2006

ACUS11 KWNS 040034
SWOMCD
SPC MCD 040034 
OHZ000-INZ000-ILZ000-040200-

MESOSCALE DISCUSSION 1434
NWS STORM PREDICTION CENTER NORMAN OK
0734 PM CDT MON JUL 03 2006

AREAS AFFECTED...NRN IL/IND...NWRN OH

CONCERNING...SEVERE THUNDERSTORM WATCH 581...

VALID 040034Z - 040200Z

BROKEN LINE OF INTENSE CONVECTION HAS RECENTLY FORMED ACROSS WRN
PORTION OF WW 581 AND EXTENDS FROM SW OF VPZ TO BMI. GUSTS TO NEAR
50KT HAVE BEEN OBSERVED WITH THIS LINE OVER THE PAST HOUR AND EXPECT
STORMS TO CONTINUE TO POSE A SEVERE THREAT WHILE MOVING INTO NWRN
IND OVER THE NEXT 1-2 HOURS.

AIR MASS ALONG QUASI-STATIONARY FRONT FROM NERN IL TO WRN OH WAS
VERY MOIST WITH SURFACE DEWPOINTS IN THE 70S. DESPITE SOME DIURNAL
COOLING...RELATIVELY STEEP 850-700MB LAPSE RATES NOTED ON ILX
SOUNDING WILL CONTINUE TO STREAM ENEWD ATOP THE MOIST BOUNDARY LAYER
AND LIKELY MAINTAIN ADEQUATE INSTABILITY TO SUPPORT ROBUST STORM
UPDRAFTS. ERN PORTIONS OF THE WATCH...FROM ERN IND ACROSS WRN OH
HAVE RECENTLY BEEN STABILIZED IN THE WAKE OF STORMS NOW MOVING
ACROSS THE OH RIVER TOWARD WV. OUTFLOW REINFORCED STATIONARY FRONT
OVER THESE AREAS COULD PROVIDE A FOCUS FOR ADDITIONAL STORM
DEVELOPMENT NEXT SEVERAL HOURS.

..CARBIN.. 07/04/2006

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

ATTN...WFO...PBZ...RLX...CLE...ILN...IWX...IND...LOT...ILX...

39618250 40158927 41708860 41718545 41468472 41498337
41168258 40528254 40568215 39908216 

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