Flash Flood — Lake, Illinois

2017-07-12 · near Barrington Hills, Lake, Illinois

Event narrative

Torrential rain fell across much of Lake County during the morning of July 12th causing widespread flash flooding. Numerous roads were impassable. In Mundelein, numerous houses were flooded and people were rescued by raft. Cars were stranded in flood waters in Libertyville. Garage and basement flooding was reported in Fox Lake. Two day storm total rainfall amounts included 7.22 inches two miles west of Gurnee; 7.13 inches in Round Lake Park; 7.11 inches two miles west southwest of Lake Villa; 6.75 inches in Mundelein; 6.69 inches one mile west of Lake Bluff; 6.46 inches two miles north northeast of Lake Forest; 5.53 inches two miles east of Waukegan; 5.49 inches two miles west northwest of Mundelein; 5.15 inches two miles southeast of Fox Lake; 4.70 inches in Riverwoods and 4.55 inches two miles southeast of Lakemoor. Major flooding with record crests occurred on the Des Plaines River.

Wider weather episode

Thunderstorms developed during the late evening of July 11th across far northeast Illinois and continued into the morning of July 12th producing torrential rainfall which continued over the same areas for hours producing flash flooding and major river flooding.

View location on OpenStreetMap → (42.1537, -88.1982)

Source: NOAA Storm Events Database, event_id 717468. Narrative written by the NWS forecast office that issued the report.