In Clarksville, Missouri--which is about 75 miles northwest of St. Louis--volunteers are still needed to help with fill sandbags.
The town is currently experiencing minor flooding, but that is expected to be upgraded to major flooding by Friday night. The United Way and AmeriCorps are coordinating the volunteers and anyone 13 and older can sign up to help on the United Way's website. Volunteers between 13 and 18 years old need a guardian to sign up.
Officials say hundreds of volunteers are needed to save a historic portion of the Mississippi River town.
Volunteers can sign up by clicking here.