Behind early morning thunderstorms, some potential exists for
renewed convection Saturday afternoon across eastern MO into
southern/central IL as a mid-level dry slot and related cold
temperatures aloft overspread this region. Forecast effective bulk
shear of 40-50+ kt will easily support supercells, although limited
low-level moisture will probably tend to keep instability weak, with
MLCAPE of 500-1000 J/kg. Isolated large hail and damaging winds
should be the primary threats, but a tornado or two may also occur
with the strong low-level shear present. If confidence increases in
the placement and coverage of thunderstorms across this region, a
Slight risk may need to be considered in a later update. From SPC