The injured person suffered a minor laceration, said David Butt, director of the Sangamon County Office of Emergency Management.
The microburst spawned by a severe thunderstorm damaged trailers.
"The damage occurred from debris. Tree limbs at a height of 10 to 20 feet were broken and they damaged the roofs of the mobile homes," Butt said.
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"No roofs were torn off. No roofs were peeled back. The only damage to roofs was being penetrated by wind-blown debris."
Early Tuesday, a severe thunderstorm watch was in effect for parts of extreme northeastern Kansas and northern Missouri. Flash flood watches and warnings were in place for portions of Nebraska, Kansas, Missouri Illinois, Minnesota and more than three-quarters of Iowa.
Hail up to 4 inches in diameter and wind gusts as high as 80 mph could accompany those storms.
Looking into Tuesday, there is a slight risk of severe thunderstorms across much of the country's midsection.
The primary threat will be very large hail, mostly in Nebraska, Kansas, western Oklahoma and the eastern Texas panhandle.
A few isolated tornadoes cannot be ruled out.
Cities and towns that will have the highest risk for severe storms Tuesday include Des Moines, Iowa; Lincoln and Omaha, Nebraska; Garden City and Liberal, Kansas; and Woodward, Oklahoma and Amarillo in the Texas panhandle.
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