Severe Storms Monday Recap 9/20

Iowa Supercell Thunderstorm

Severe storms developed east of interstate 35 Monday afternoon. The first cell of the afternoon developed near Marshalltown, Iowa and tracked to the east into Tama. As this storm started to head into the Cedar Falls area, it quickly became outflow dominant and dissipated.

A couple storms began to develop just to the southeast of Des Moines. As theses storms crossed into Jasper and Marion counties, they became severe warned for 60-mph wind gusts and quarter sized hail. The rotation on these storms were quickly tightening, and it appeared that a tornado would be imminent.

Our chase team ended up on the southern most storm near Seymour, Iowa, which had a funnel cloud reported near Millerton. This storm had an almost textbook supercell structure. Our chase team continue to track this storm into northern Missouri, but quickly called off the chase as evening began to set in.

Back in Iowa, a beautiful sunset was ending the day. Alex Carrey captured the following sunset in Burlington, Iowa as the storm clouds were leaving the state.

Burlington, Iowa Sunset

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Zach Sharpe

My name is Zach Sharpe. I am the president and forecaster for the Iowa Storm Chasing Network. You can find me on Twitter @Stormchaserzach and on Facebook at:

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