DES MOINES, Iowa — Several tornadoes were reported in Iowa and Illinois as storms downed power lines and trees on Friday, just days after a deadly twister devastated one small town.
The large storm system began overnight in Nebraska before traveling across central Iowa and into Illinois. A weak tornado touched down in suburban Des Moines, according to the National Weather Service, which was also assessing damage from several other reported twisters south of Iowa City and near Moline, Illinois. No injuries or deaths were reported.
The storm also brought rain that was heavy in some areas of Iowa, where totals have reached as much as 8 inches (20 centimeters) over the last week, according to the weather service.
Also Friday, a church caught fire in Madison, Wisconsin, as a thunderstorm rolled through the area. Nate Moll, who lives two doors down from Holy Redeemer Catholic Church, said he heard a ''zap zap zap'' electrical sound, followed by a loud crack of thunder. Firefighters extinguished the blaze.
In Oklahoma, a tornado was on the ground for about an hour Thursday evening in Jackson County and neighboring counties as a slow-moving storm moved through, according to Ryan Bunker, a meteorologist with the weather service's Norman, Oklahoma, office. News outlets reported downed power lines and outages and damage to some structures.
Severe weather was expected in areas around the U.S. throughout the long Memorial Day weekend, with a strong risk of tornadoes on Saturday in the Great Plains, particularly Kansas and Oklahoma. In New Mexico, strong winds and low humidity could fuel wildfires.
''It's really important if you have outdoor plans to make sure that you remain aware of approaching thunderstorms,'' said Matt Elliott, warning coordination meteorologist with the weather service's Storm Prediction Center.
''May is the peak time of year for tornadoes and for severe weather across the United States,'' Elliott said.