Flash Flood — Scott, Illinois

2017-04-29 · near Naples, Scott, Illinois

Event narrative

Rain amounts of 3.00 to 5.00 inches in about a three hour period during the early evening hours, on already saturated ground, resulted in flash flooding across much of Scott County. Numerous streets in Winchester were impassable, as were numerous rural roads and highways in the county including parts of Illinois Route 106 which was closed in spots near Alsey.

Wider weather episode

Low pressure tracking along a stationary frontal boundary near the I-70 corridor brought widespread strong to severe thunderstorms to much of central and southeast Illinois during the late afternoon and evening of April 29th. A tornado briefly touched down in an open field northeast of Alexander in Morgan County. Elsewhere, thunderstorms packed winds of 60-70mph and caused significant wind damage. A downburst with estimated winds of 80mph caused property damage of around 2 million dollars in Middletown in Logan County. In addition to the strong winds, many of the storms dropped copious amounts of rain, causing widespread flash flooding. Numerous roads were closed due to high water, including Highway 29 north of the McClugage Bridge in Peoria where a mudslide occurred.

View location on OpenStreetMap → (39.7907, -90.5974)

Source: NOAA Storm Events Database, event_id 696689. Narrative written by the NWS forecast office that issued the report.