In case anyone is curious, this is what 23" of rain looks like from a house that sits 10' above the 100-year flood plain. Overall we came out relatively unscathed compared to most - MANY people lost everything in this as a great number were not in a flood zone and thus had no flood insurance.
As a reference, our property goes back 880' with a 35' drop in elevation to the drainage area... the front of the property was right at a few inches, so the back was under approximately 35' of water. It usually has between a few inches to maybe 3' after a "normal" rain.
Another comparison I saw was that the 3 day total here was more rain than Los Angeles has received since 2012. I'll still take this any day over earth quakes, though!