GREENFIELD, Iowa (KCRG) – On May 21st, 2024, an EF 4 tornado spun a trail of destruction through Greenfield. Nearby wind turbines were bent in half and set on fire. Dr. Bill Gallus, a Professor of Meteorology at Iowa State University, told KCRG-TV, that in addition to the hot and humid air, which fueled the storms on that fateful Tuesday, a short distance between the storms may have strengthened the Greenfield tornado.

Dr. Gallus said there was another tornado that was only passing maybe 5 miles to the northwest of the Greenfield tornado, [and while their] instruments [were] not nearly close together enough to understand exactly what happened, he thinks there was probably some type of interaction happening with those two tornadic storms.

Engineers design wind turbines to withstand wind speeds up to 140 miles per hour. Meteorologist and engineer Tim Marshall kept that in mind as he watched video of the Greenfield tornado. Marshall said they would normally anticipate the turbine blades would shred, and that they would come apart in pieces and that’s exactly what happened. The tower which supports the turbine nacelle and blades was stronger.

Now, scientists are using their knowledge of meteorology and wind turbines to upgrade the EF Scale. Engineers such as Dr. Partha Sarkar, a professor of Aerospace Engineering at Iowa State University, are working to better understand how tornado winds impair wind turbines.

WINTERSET, Iowa — Movie theaters in Winterset and Greenfield say they are not planning on showing the movie “Twisters” this summer. KCCI in Des Moines reports the Iowa Theater in Winterset made the announcement Tuesday on Facebook. Manager Scott Smith said he watched the trailer and felt uncomfortable with what he saw.

On March 5, 2022, Iowa experienced one of the deadliest and most damaging tornado outbreaks the state had seen in years, including an EF4 tornado that touched down in Winterset. Smith said the images in the movie hit too close to home. He said many of the visuals looked too similar to what happened in Greenfield this spring. A deadly EF4 tornado tore through the town located 25 miles west of Winterset in May, killing four people and injuring dozens more.

Movie poster for “Twisters”

In a statement made to KCCI, the manager of the Grand Theater in Greenfield, Deb Lundy, said: “The Grand Theater had been planning to show the Twisters movie since the beginning of the year. When the tornado hit us, I called my movie broker and between the two of us we decided it was not the right time for us to show that movie.”

(Radio Iowa) – Many Iowa home owners are seeing their insurance premiums rise and some companies are refusing to insure some properties altogether. Sonya Sellmeyer, a consumer advocacy officer in the Iowa Insurance Division, says there have been a series of rate increases since the derecho that hit Iowa in August of 2020.

“It just seems like ever since then we’ve just continued to get hit by storms. It costs a lot of money to repair that damage, for many different reasons — inflation, material costs have gone up,” Sellmeyer says. “The reinsurance that the companies themselves have has gone up for them.”

Reinsurance is basically insurance for insurance companies. Sellmeyer says Iowans facing a significant hike in homeowners insurance could consider a higher deductible — if it’s an amount they can afford. Sellmeyer is encouraging Iowans to have a discussion with their licensed insurance agent, to ensure their policy would cover the cost of replacing their home and its contents.

“You don’t want to be paying something, espeically as it becomes more expensive, that’s not going to give you what you really need to replace your home in case something would happen,” Sellmeyer says. “…And understand your riders that you have, too, on your policy or that you may need…Sump pump and sewer riders are very important.”

Flooding is the most common and costly natural disaster in the U-S. There’s been a federal flood insurance program since the 1960s for property in a flood plain and a federal rule change in 2019 encouraged private companies to sell flood insurance policies. Sellmeyer says you can buy private flood insurance in Iowa even if your property is not in a flood plain. “I spent a weekend in Spencer, shortly after the flooding happened, with those survivors there and I strongly suggest all Iowans need to sit down with their insurance agent and see if this is something that they need,” Sellmeyer says.

According to the National Association of Realtors, home insurance premiums in the U-S are expected to rise about six percent by the end of the year.