Flood — Cass, Indiana

2017-07-11 to 2017-07-12 · near Logansport Muni Arpt, Cass, Indiana

Event narrative

High water levels continued well after rain had stopped on the 10th, with numerous roads remaining closed due to flowing water. The extensive flooding made it difficult to survey a tornado that occurred in the flooding area. More specific details can be found under the Flash Flood entry for this event. A 6 year old boy was killed after somehow ending up in a swollen Mason Kingery ditch west of Galveston Town Park. He was pulled to along Indiana 18 and trapped by the high water. He was eventually pronounced dead after rescue attempts.

Wider weather episode

Synoptic quasi-stationary boundary was located across the forecast area, initially across northern parts during the morning and then sagging south as an upper level wave moved into the region during the late afternoon and evening hours. A morning complex of storms caused sporadic wind damage as well as some areal flooding. Subsidence behind the system kept any further development of storms limited until the approach of the wave. This wave, combined with the front and instability advected in from central Illinois all set the stage for increasing thunderstorm development. Several supercells developed, producing long lived wall clouds and two confirmed tornadoes. IN addition, training of convection caused flash flooding in some parts of Indiana and Ohio.

View location on OpenStreetMap → (40.6922, -86.3735)

Source: NOAA Storm Events Database, event_id 716134. Narrative written by the NWS forecast office that issued the report.