Flash Flood — Jo Daviess, Illinois

2017-07-21 to 2017-07-22 · near East Dubuque, Jo Daviess, Illinois

Event narrative

Widespread flash flooding occurred throughout the county from 3 to over 9 inches of rain. Almost 1000 structures were flooded. Two water treatment sewage plants sustained damage with thousands of acres of crops lost. Preliminary damage estimates are between 7 and 8 million dollars.

Wider weather episode

A long duration convective event along a stalled boundary occurred. This resulted in a major heavy rain and flooding event from 3 to over 8 inches of rain falling. Some storms become severe with damaging winds over 60 mph and isolated large hail.

View location on OpenStreetMap → (42.5179, -90.6500)

Source: NOAA Storm Events Database, event_id 716674. Narrative written by the NWS forecast office that issued the report.