Rounds of Heavy T-Storms Late Tonight and Thursday Morning across Illinois... - Storms will expand in coverage across Missouri this evening and these will move into Illinois late tonight and into the early morning hours on Thursday. Some may contain strong wind gusts as a mcs moves across the central and southern part of the state. I don't expect damaging wind gusts north of I-80 but a few could be observed south. Heavy rainfall will be the main hazard tomorrow morning as 1-2 inches of rain fall