Flash Flood — Louisa, Iowa

2025-07-20 · near Columbus Jct, Louisa, Iowa

Event narrative

Based on reports from social media. There is standing water that is several inches deep throughout out the county fairgrounds.

Wider weather episode

A decaying mesoscale convective system moved into eastern Iowa during the morning hours of July 20th. These showers and storms produced heavy rain with trained spotters reporting 1 to 3 inches of rain. This lead to flash flooding in parts of Washington, Louisa, and Muscatine Counties.

View location on OpenStreetMap → (41.2800, -91.3500)

Source: NOAA Storm Events Database, event_id 1282244. Narrative written by the NWS forecast office that issued the report.