Isolated severe gusts and hail will also be possible from parts of the central and northern Plains into the Midwest. ...From IL into western VA/NC... Bouts of strong to severe thunderstorms are expected Tuesday, though timing and position of the greatest threat corridor is uncertain. The greatest threat of a damaging wind corridor appears to be in these areas, with MUCAPE over 3000 J/kg, and potentially 40-50 kt deep-layer shear. Southeasterly surface winds and 60s F dewpoints will yield moderate instability, and favorable 40-50 kt deep layer shear. The elongated mid to upper hodographs should aid supercell and hail potential, with bowing structures producing damaging wind during the evening.