When you live by a river the size and scope of the Missouri (most familiar may be the Mississippi), eventually...this will happen given the right circumstance of weather. For example-I mentioned Carter Lake. Here is what wiki said about it:
"Carter Lake is a former channel of the Missouri River and was formed in the summer of 1877. The city of Carter Lake, Iowa takes its name from the lake. The lake was formed from the Saratoga Bend in the Missouri River."
What it doesn't say is that a meandering channel of this river will create a lake after a flood event that literally scours a new path, leaving the former channel isolated & then it becomes a lake. I thought it interesting that they did not mention the flood of 1877. Carter Lake is technically part of Iowa, but is on the wrong side of the river, because the Missouri was the borderline when the states were mapped (Nebraska became the 37th state on March 1, 1867). These people have built homes exceeding $500k....which is breathtaking, & obviously some real estate agents idiotic idea, to make a huge amount of money from folks who had not done their homework, and/or forgot, weren't alive to remember how it was formed.
This flood has been complicated into a cluster by the Corp of Engineers (who are taking a LOT of heat & all sorts of ridiculous conspiracy theories are "out there."), who have built dams for recreation, wetlands eco-systems, etc.; as well as a perfect climatic "storm." Hydrology is a very complicated science that occupies environment geologist's skillset perseverantly. I am so grateful for accidentally taking those classes back in the day.
I was very fortunate to have some dear friends who are called "river rats." It's a perjorative that makes them laff, for they KNOW the river, choose to live there and will probably rebuild if there is anything left to rebuild on. FEMA works alot better on a chronic timeline (vs. a Magnitude zillion, such as that devil of a hurricane down south).
Hope I don't sound too clinical. This is a very bad thing & everyone is on tenterhooks, for a long time. It presents an opportunity for kindness, for the cities are responding with great compassion for families, livestock and even animals. Many of our social services (homeless shelters, inner city children's programs, food bank distribution shelters) will be impacted. There's a program where people adopt families, make storage available, house people and animals.
I'll let you know, if it is of interest-what goes on that may be off the media. I'm still shocked that this was held under wraps for so long.
Thanx for your time, good wishes and comments. The good news is, that it is happening slowly-so a Fukushima is not likely. They have already shut down as much as possible. We worry for those that are down river...for there will be dramatic pollution as it courses downstream (just think of the sewage, livestock, farm chemicals....eeks!!!!)
Grandpa Young always said, "Water runs downhill." But I think he was talking about premarital sex.