Don't be so obtuse. 50 inches of rain ain't the point. Doesn't take anywhere near that much to flood areas that have been overbuilt. Suburbs all over Chicagoland were flooding earlier this year with about 14 inches of rain over a two day period. Happens more and more often and it ain't the size of the storm, it's the urban sprawl. Just makes it all the worse when a really big one hits.What other urban area had 50 inches of rain in 48 hours? I missed that but as this is now called an 800 year event, I wasn't born yet for the last one.