Flash Flood — Jefferson, Iowa

2020-05-14 · near Libertyville, Jefferson, Iowa

Event narrative

A trained spotter reported the Cedar Creek rapidly came out of it's banks and flooded nearby low lying areas.

Wider weather episode

Showers and thunderstorms tracked across central Iowa into eastern Iowa, northeast Missouri, and northwest Illinois late Friday afternoon and into the overnight hours. These storms brought heavy rain, frequent lightning, damaging winds, and large hail to the region. The hardest hit areas were Keokuk county in Iowa, towards Henry county in Iowa, where 50-70 mph winds occurred. A weak EF-1 tornado occurred near Atkinson, IL in Henry county in Illinois after 1015 pm and caused damage to trees and outbuildings at two farmsteads.

Widespread rainfall amounts over 1 inch generally fell south of a line from Sigourney and Maquoketa, IA to Freeport, IL. This rainfall combined with the previous days rain brought rain totals of 2-4 inches to the area.

View location on OpenStreetMap → (41.0000, -92.0500)

Source: NOAA Storm Events Database, event_id 892836. Narrative written by the NWS forecast office that issued the report.