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Iowa’s largest tornado outbreaks

April is when the severe weather and tornado season in Iowa starts to ramp up. Since 1980, there have been 232 tornadoes during the month.

Today (April 11, 2021) marks the 20th anniversary of Iowa's second largest tornado outbreak (number of tornadoes in one calendar day) on record.

On April 11, 2001, there were 28 tornadoes reported across the state. Most of them were F0 or F1 tornadoes, but a deadly F2 tornado struck Agency, Iowa (Wapello County). Two people were killed and three others injured. And F3 tracked from northern Missouri into south central Iowa.

Aside from the tornadoes, there were multiple reports of 70-85 mph damaging wind gusts in Franklin and Black Hawk counties. There was also golf ball size hail reported in Parkersburg.

Read more about the tornado outbreak by clicking here.

This was the conclusion of a two-day outbreak with 79 tornadoes reported in Nebraska, Iowa, Kansas, Missouri, Texas and Oklahoma on April 10th and 11th.

This isn't the most tornadoes on record in one day, however. More than 13 years later, on August 31, 2014, there were 35 tornadoes confirmed in Iowa, making that the most tornadoes in one calendar day. Here are a look at the other top tornado outbreaks in the state, courtesy of NWS Des Moines.

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Kyle Kiel

Meteorologist

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