[MCD] SWOMCD

[MCD at goshenarc.org]

ACUS11 KWNS 210003
SWOMCD
SPC MCD 210003 
ILZ000-IAZ000-MOZ000-210130-

MESOSCALE DISCUSSION 0615
NWS STORM PREDICTION CENTER NORMAN OK
0703 PM CDT WED APR 20 2005

AREAS AFFECTED...FAR SE IA INTO NW/WCNTRL IL AND FAR NE MO

CONCERNING...SEVERE THUNDERSTORM POTENTIAL 

VALID 210003Z - 210130Z

THREAT FOR MAINLY LARGE HAIL EXPECTED OVER NEXT FEW HOURS IN A SMALL
CORRIDOR ACROSS FAR SE IA INTO PORTIONS OF NW/WCNTRL IL AND PERHAPS
FAR NE MO. WW ISSUANCE NOT ANTICIPATED GIVEN EXPECTED LIMITED
TEMPORAL/MARGINAL NATURE OF THREAT.

TSTMS /CURRENTLY ACROSS FAR SE IA/ SHOULD CONTINUE TO EXPAND/DEVELOP
SEWD ACROSS PORTIONS OF NW IL AND PERHAPS FAR NE MO OVER NEXT FEW
HOURS. THESE STORMS ARE DEVELOPING INVOF REMNANT SYNOPTIC FRONTAL
BOUNDARY ON NRN PERIPHERY OF BUBBLE HIGH/COLD POOL CENTERED ACROSS
NE/ECNTRL MO. IN SPITE OF WEAK VERTICAL SHEAR /20-30 KTS 0-6 KM BULK
SHEAR/...AREA REMAINS AT LEAST MARGINALLY UNSTABLE WITHIN THIS
RELATIVELY UNPERTURBED AIRMASS OF SE IA AND WCNTRL/NW IL...WITH
AVAILABLE MUCAPE ON THE ORDER OF 750-1000 J/KG PER AUGMENTED 21Z RUC
SOUNDINGS.

..GUYER.. 04/21/2005

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

ATTN...WFO...ILX...LSX...DVN...

41829049 41028916 39988943 39819031 40249170 41029177
41439144 

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