Remember this? It may be a bit before your time but take a look at this 35 image gallery of what the 1984 flood did to the Franklin County area. You may see sights that relate to today. . . . enjoy the sights.
We also have a U.S. Government meteorological report on the event as a PDF document, in case you wish a technical explanation on what happened.
https://montaguearchive.org:8443/handle/MHS-01376/6438