A flash flood that killed 20 people last year in southwest Arkansas was caused by as much as 4.7 inches of rain falling in the upper Little Missouri River watershed in three hours.
The findings are part of a U.S. Geological Survey report released Wednesday.
The Geological Survey sent a team of scientists to study the flow and height of the floodwater after the flash flood struck the Albert Pike Recreation area near Langley in June 2010.
The latest report also shows that in the nearby floodplain, which includes part of the campground, the water flowed at speeds as great as 11 feet per second.
Copyright 2026 Associated Press. All rights reserved. This material may not be published, broadcast, rewritten or redistributed.
Was this article valuable?
Here are more articles you may enjoy.
Taco Bell Met With Michigan on Parasite Weeks Before Recall 
Citigroup Settles $70 Million Trade-Loss Suit With Loomis Sayles 
Hackers Hit Bitcoin’s Safest Hiding Place in Ongoing Attack 
OpenAI Asks Judge to Toss Apple’s Trade Secrets Lawsuit 
Want to stay up to date?
Get the latest insurance news
sent straight to your inbox.