The National Weather Service in Des Moines reports thunderstorms are expected to develop during peak heating of the day Sunday along a cold front through the Missouri River Valley and then move into Iowa during the late afternoon and early evening hours. Some of the storms may be severe with heavy, potentially flooding rains. Large hail, damaging winds and a few tornadoes are all possible.
Many people will likely have outdoor plans this Labor Day weekend. Keep a close eye on the weather, have your safety plan in place and be ready to seek shelter if threatening weather approaches.