A bicyclist died on a windy Saturday afternoon when a tractor pulling two wagons loaded with corn struck him on a rural road just outside of Ames.

Daniel Wisnousky, 37, of Clive, was dead when emergency officials arrived.

Story County Sheriff Paul Fitzgerald said Wisnousky was riding with a group of other bicyclists northbound on 580th Avenue, also known as county road R70. Less than a mile south of U.S. Highway 30, the tractor, also traveling northbound, passed Wisnousky and another man. Sheriff’s officials said Wisnousky apparently fell down and was run over by the wagons.

“We’re still piecing together exactly what happened,” Fitzgerald said.

Wisnousky was the only bicyclist involved in the accident, Fitzgerald said. The other man and the driver of the tractor, Todd Weber of Collins, were not injured.

The rest of the biking group saw the accident take place, as did another driver.

Fitzgerald said he was confident investigators would be able to determine more definitively the cause of the accident. He said he wasn’t sure what role, if any, winds that gusted to nearly 40 mph Saturday played in the accident.

The man’s bicycle was almost completely unharmed by the wreck, which happened about 2 p.m. Only the chain mechanism seemed damaged on the red, white and blue bicycle.

Fitzgerald said it was important for everybody using roads to be extra cautious during this time of year. Tractors, in particular, have many blind spots that could make it difficult for their operators to see other road users.

“You’re going to have slow-moving vehicles out on the roadway,” he said. “It’s fall harvest season.”