Free Republic

LA CROSSE, Wis. (FOX 9) - So many mayflies hatched at once near the Mississippi River Sunday night it was picked up on the National Weather Service’s radar. The National Weather Service in La Crosse, Wisconsin shared an image of the radar, showing a mass appear over the Mississippi River on the Minnesota-Wisconsin border around 10 p.m.

Police say a large hatch of mayflies may have caused a three-vehicle crash on a Wisconsin road. The St. Paul Pioneer Press reports the road had become slick from the mayflies Sunday evening, causing at least one of the drivers involved in the crash to lose control of her vehicle. They also said visibility was limited at the time of the crash. Two people were injured in the crash, but only one person was taken to a local hospital.