Flash Flood — Clayton, Iowa

2007-07-17 to 2007-07-18 · near Mc Gregor, Clayton, Iowa

$1.3M

Property damage

Event narrative

Mud slides caused trees to fall down off Mississippi River bluffs onto roads and cars were floating in the town of McGregor. Numerous locations across northeast Clayton County, Iowa had wash outs, high water, and damage.

Wider weather episode

During the evening hours of July 17, thunderstorms began forming over parts of northeast Iowa. These storms continued into the early morning hours of July 18, producing significant flash flooding. Rainfall totaled 9.47 inches and 8.09 inches of rain respectively in McGregor and Marquette (Clayton County). Due to the excessive rainfall, numerous homes were flooded, while debris consisting of mud, rocks and trees flowed off hill sides. In addition, law enforcement officials reported cars and liquid propane tanks floating, as flood waters reached as much as seven feet deep.

View location on OpenStreetMap → (43.0200, -91.1800)

Source: NOAA Storm Events Database, event_id 40419. Narrative written by the NWS forecast office that issued the report.