Powerful overnight and morning storms caused damage to buildings, power outages and high river levels in Marion County. According to MidAmerican Energy, 808 customers in the county were without power until around 11:45 this morning, including 800 in the city of Knoxville. The outage affected the square in Knoxville and traffic lights on and near the square as well, so four way stop signs were put in place to help control traffic.
The storm dumped 1.1″ of rain on the area, breaking the 1935 June rainfall record of 12.79″ by 1.01″ as we have received a total of 13.8″ so far this month. As of 11:00am the English Creek near Knoxville was 1.88 feet above flood level, the South Skunk River Near Oskaloosa is 2.28 feet above flood level and the water levels at Lake Red Rock are at 777.32 feet.
In addition, grain bins at the Clark family residence, at 2309 78th Ave near Columbia, were damaged and destroyed shortly before 4:30am. One bin rolled and was completely destroyed and another was thrown over 400 feet. It has not been determined whether the damage was caused by powerful straight line winds or a tornado.