524
ACUS3 KMKC 270307
SWOMCD
MKC MCD 270306
IAZ000-ILZ000-MOZ000-270500-

SPC MESOSCALE DISCUSSION #1717 FOR...CENTRAL IL...
CONCERNING...SEVERE THUNDERSTORM POTENTIAL...REF WW 711...

PREFRONTAL TROUGH/WINDSHIFT SITUATED WEST TO EAST ACROSS CENTRAL IL
ATTM REMAINS A FOCUSING MECHANISM FOR SEVERE CONVECTION. ALTHOUGH
WESTERNMOST CELL HAS DISSIPATED IN THE LAST HOUR...AN ISOLATED
SUPERCELL WAS ABOUT TO MOVE INTO NW COLES COUNTY OVER EAST-CENTRAL
IL. AIRMASS ACROSS THE MID MS VALLEY REMAINS MODERATE TO VERY
UNSTABLE WITH MEAN MIXED CAPE VALUES OF 2000-3000 J/KG. STRONGEST
DEEP LAYER SHEAR WAS ALSO LOCATED ATOP CURRENT IL ACTIVITY.
THEREFORE A LARGE HAIL/DAMAGING WIND POTENTIAL CONTINUE ACROSS
VALID PORTIONS OF WW 711.

..CARBIN.. 08/27/00