GRAFTON/SHILOH - The Metro Illinois region and Jersey and Calhoun Counties experienced substantial rainfall over the past 24 hours, with several areas reporting significant accumulations and ongoing flash flood warnings. The heaviest rainfall was recorded in Shiloh, where 6.85 inches fell and Grafton, with an estimated 5 to 7 inches fell contributing to widespread concerns about flooding. Jersey and Calhoun counties reported an excessive amount …