The Great Nebraska Sea by Allan Danzig is a future history account of the greatest disaster to hit the United States, the forming of the Great Nebraska Sea. Millions die, but new opportunities for fishing and water skiing open up.
Links:
The Great Nebraska Sea by Allan Danzig [Galaxy, August 1963]:
https://archive.org/details/Galaxy_v21n06_1963-08/mode/1up
The Large Ant by Howard Fast [Fantastic Universe, February 1960]:
https://archive.org/details/Fantastic_Universe_v12n04_1960-02/mode/2up
The Great Nebraska Sea (song by Blake Hodgetts):
https://www.youtube.com/watch?v=Qok0QsEB96s
Blake Hodgetts’ Web Page:
https://slipsong.com/