Good Article on Flush Drowning from Outside Magazine
An interesting article in Outside Magazine, based on a research paper done with information stored in the American Whitewater Accident Database. Certainly cold water plays a big role in a flush drowning death, especially when the swimmer has inadequate thermal protection. In addition to cold water shock, a few drops of cold water down the throat can cause laringospasm, which narrows the trachea and can make breathing very difficult. But in my opinion, the relentless, fast moving character of Western rivers is the main reason that flush drownings are more common there. With the exception of the Cheoah and flood-stage runs, few Southeastern rivers can compare to an average Western Class IV.
https://www.outsideonline.com/2411473/flush-drowning-whitewater-deaths-study?fbclid=IwAR2-blIEjgNu7tFBgXxT4ozlyfNw0Yc6yt41pao9daWRdmGvloxpqyb3ovQ