Thunderstorm Wind — Johnson, Iowa

2025-07-29 · near Iowa City Muni Arpt, Johnson, Iowa

Wider weather episode

On July 29th, a well-organized line of severe progressed from South Dakota into Iowa during the very early the morning hours. Severe thunderstorm wind gusts occurred in eastern Iowa with scattered gusts between 70 to 80 MPH. Wind gusts over 40 MPH lasted for 30 minutes in some places. This line of storms was classified as a derecho by the Storm Prediction Center.

View location on OpenStreetMap → (41.6400, -91.5500)

Source: NOAA Storm Events Database, event_id 1282339. Narrative written by the NWS forecast office that issued the report.