Tornado in Warren County, Iowa

This is a continuation of the tornado which started in Madison county and passed into Warren county. The tornado remained very broad with a maximum width of up to 500 yards at times. Video evidence supports a multi-vortex circulation with the tornado across much of Warren county. The tornado cross Interstate 35 shortly after entering the county but fortunately, no vehicles were impacted. The tornado remained in rural areas to the west southwest of Norwalk producing mostly tree and outbuilding damage. The tornado passed along the southeast edge of Norwalk producing EF0 to EF1 damage along Coolidge Street and along Highway G14 near Warrior Run Golf Course. The tornado crossed Highway 5 just west of the intersections of Highway 5 and Highway 69 approaching the southeast side of Des Moines. The tornado entered into Polk county shortly after crossing Highway 69 near the intersection of Highway 69 and Indianola Avenue.

Tornado spotted by amateur radio, law enforcement, Warren County Emergency Manager, and trained spotters. Touched down near Cumming and lifted south of the Norwalk area. Damage was done to several buildings. One house had the roof taken off. Numerous trees and power lines were downed. The tornado track was generally east-southeast, however the track was not straight.

The second of three tornadoes associated with a fast moving QLCS. The particularly strong tornado moved across rural Warren county producing mainly crop and tree damage. However, the tornado encountered the several large steel buildings with I-beam construction. Significant damage occurred to these buildings with some being totally destroyed producing the EF3 damage. The tornado continued to the southeast beyond this area remaining in rural crop and woodland areas.