Did that same drive (hometown of Montpelier, OH) in reverse in June of 1980 in a '72 Ford Maverick with no A/C.

The eastern part of NM, the panhandle of TX, and the SW part of OK are some of the most boring, desolate stretches of highway I've ever driven. I guess you didn't ask for anecdotal accounts of long-ago trips.

Sorry, I have nothing to offer in the way of info on the flooding.

Good luck on your trip!