Tornadoes ripped through Michigan on Tuesday evening, injuring residents, damaging nearly 200 mobile homes and lifting some off the ground, and trapping dozens of FedEx workers inside a building, officials said.

Over a dozen tornadoes were reported in Michigan, Indiana and Ohio on Tuesday night as severe storms battered the Midwest, officials said. A handful of others were reported early Wednesday in Arizona and West Virginia. The threat of tornadoes ended in many areas before midnight on Tuesday.

One of the hardest hit counties was Kalamazoo in Southern Michigan, where officials said multiple tornadoes caused significant damage. One tornado tore through a mobile home park, damaging about 176 homes inside the park, Rick Fuller, the county sheriff, said at a news conference early Wednesday.

Strong winds carried away some of the homes, Sheriff Fuller said. “We found homes in the roadway, we found homes in neighbors’ homes. We found large trees in homes. We found many vehicles that had been smashed by large trees or homes,” he said.

Between 16 and 20 people were injured at the mobile home park, but none were seriously hurt and no fatalities had been reported so far, Sheriff Fuller said.

Gov. Gretchen Whitmer declared a state of emergency for Kalamazoo and the neighboring counties of St. Joseph, Branch and Cass, which were also pummeled by storms and large hail.

About 50 workers were trapped inside a FedEx depot center in Kalamazoo County after it suffered significant damage, county officials said. The workers had all been safely rescued from the building by early Wednesday, a statement from the Kalamazoo County Government said. No serious injuries were reported, a FedEx spokeswoman said.

Over 30,000 customers across Michigan were without power early Wednesday, according to PowerOutage.us.

The storms were expected to continue on Wednesday. Forecasters said roughly 9.5 million people in cities in Ohio and Kentucky, including Columbus, Cincinnati and Louisville, faced an enhanced risk of severe thunderstorms on Wednesday, with the possibility of strong tornadoes and large hail, according to the National Weather Service’s Storm Prediction Center.

On Monday night, at least 15 tornadoes were reported to have struck parts of the Plains. One tornado that was up to two miles wide ripped through Barnsdall, Okla., a city about 40 miles northwest of Tulsa, killing one person, an Osage County official said.

One Osage County official said it had caused multiple injuries and leveled about a third of the small city, which has a population of about 1,000. The Oklahoma Highway Patrol reported that up to 40 homes in the town had been damaged.

The tornado also lifted the roof off a nursing home in Barnsdall, though all residents were accounted for with no injuries or deaths, officials said.

Mayor Johnny Kelley said one person was reported missing.

“We are going through the debris very thoroughly,” Mr. Kelley said at a news conference on Tuesday.

Considering the widespread destruction, it was “shocking” there were so few casualties, he said: “The devastation is pretty substantial.”

The tornado also caused power outages in Missouri, Arkansas and Oklahoma. But by early Tuesday, power had been largely restored.

In Bartlesville, Okla., about 20 miles southwest of Barnsdall, city officials said that emergency responders had rescued people trapped at a Hampton Inn and were recovering downed power lines early Tuesday. Only minor injuries had been reported.

Rescue operations were also ongoing at the Osage Nation Reservation, where officials warned residents to stay clear of the roadways and damaged areas.

Johnny Diaz, Judson Jones, John Yoon and Jesus Jiménez contributed reporting.