Here’s a close-up analysis of the heaviest rain. Red on this chart indicates more than SIX inches of precip. It fell from 5am through 1pm Monday morning. High water in some small watersheds in Marion County was the highest in possibly more than 40 years. Lick Creek in the Beech Grove area reached the highest level ever since possibly July 1969. Pleasant Run at Arlington Avenue was the highest since June 1978. One local report indicated that a tributary of Sugar Creek in Shelby County was as high as in June 2008
The heaviest rainfall was concentrated in Tippecanoe, Hamilton, Marion, Johnson, and Shelby counties. As a result, lowland flooding will quickly return to the Wabash, White and East Fork White Rivers in central Indiana. The White River in Marion County will exceed flood stage by possibly Monday evening and in Morgan County on Tuesday. Flooding along the Big Blue River will develop overnight in Shelby and Johnson Counties. By Wednesday lowland flooding will extend along the Wabash River to Terre Haute, along the White River to Spencer and along the East Fork White River to Seymour.
High water from central Indiana will cause lowland flooding along the White and Wabash Rivers in southwest Indiana after June 23. Additional rainfall through Saturday could cause higher levels in southwest Indiana. Flooding may extend into early July.