Midwest Storms Bring Possible Tornadoes to Iowa, Killing at Least 1

Damaging storms brought punishing winds and possible tornadoes to Iowa on Tuesday afternoon, leaving at least one dead and causing considerable destruction in the latest in a run of severe weather to have struck the Midwest in recent weeks.

A woman suffered a storm-related death in Adams County, according to Lisa Brown, the county’s medical examiner.

Images shared on social media and broadcast in local television news reports showed the destruction left by reported tornadoes, including three 250-foot-tall wind turbines that toppled in Adams County, a county roughly 65 miles southwest of Des Moines. One of the structures appeared to have caught fire, releasing a large plume of smoke.

Footage circulating on social media appeared to show extensive damage in a residential area of Greenfield, Iowa, a small city of about 2,000 residents in Adair County about 50 miles southwest of Des Moines. Video captured by a storm chaser showed a stretch of homes that had been reduced to piles of wood and rubble, and people being escorted away by emergency officials.

Gov. Kim Reynolds of Iowa issued an emergency disaster proclamation in 15 counties, including Adams and Adair, allowing state resources to be used to respond to the storms.

A wide swath of the country, from Kansas City, Mo., to Milwaukee, was in the path of the storm activity, with the highest probability of tornadoes and damaging winds across Iowa, including Iowa City and Davenport.

More than 4 million people were under a moderate risk of severe thunderstorms, including most of Iowa and parts of Missouri, Illinois and Wisconsin.

Here are some essential things to know.

• The Weather Service issued a tornado watch for Iowa, northwest Illinois, southeast Minnesota and western Wisconsin until 9 p.m., adding that the region faced a “particularly dangerous situation” that could spawn several destructive tornadoes and hail as large as four inches in diameter.

• At least two possible tornadoes were spotted in southwestern Iowa on Tuesday afternoon, WHO-TV of Des Moines reported. Several tornado warnings were issued in the state, including for Des Moines. The Weather Service in Des Moines said it had received numerous reports of tornado sightings on Tuesday afternoon, though the total number was unclear.

• More than 61,000 customers were without power across Iowa, according to Poweroutage.us, which aggregates data from utilities across the country.

• A line of strong thunderstorms was moving across Iowa toward Des Moines on Tuesday afternoon, the Weather Service reported. Flood watches were in effect across a large swath of the state.

Pea-size hail, heavy rains and strong winds swept through Madison County, Iowa, southwest of Des Moines, in a first round of storms on Tuesday morning, county emergency management officials said. Residents were warned to shelter from the storm, which was expected to peak between 3 p.m. and 8 p.m.

School districts closed early or did not hold classes at all.

This region has been no stranger to tornadoes this year, including reports of tornadoes in the Chicago area. There have been more than 150 preliminary reports of tornadoes in Iowa, Illinois and Missouri so far this year. Most of those reports occurred before May and June, typically the peak period for tornadic weather for these states.

There was some uncertainty on Tuesday about how much the morning storms may affect the storms that are expected to form in the afternoon. The morning storms could end soon enough that the weather conditions will rebound, and there will be enough energy for damaging storms to occur during the afternoon.

The risk of severe storms will persist into the Upper Great Lakes region overnight into Wednesday morning.

Christine Hauser contributed reporting.