Was Nashville's flood caused by global warming?

Apparently, head of the National Center for Atmospheric Research Kevin Trenberth thinks so. However, according to the US Climate Extremes Index for precipitation, there has been no trend in US precipitation over the past 100 years:

Above graph from the US Climate Extremes Index shows the sum of the percentage of the United States with a much greater than normal number of days with precipitation plus the percentage with a much greater than normal number of days without precipitation. Five year mean is shown in green.

Climate scientists frequently like to have it both ways, claiming that anthropogenic global warming causes both increased precipitation and increased droughts.

Did anthropogenic global warming also cause the highest recorded flood in Nashville in 1926 & 1927 according to the US Army Corps of Engineers? And severe Nashville flooding in 1937, 1975, and 1977?





UPDATE: Floods 10X More Likely During Global Cooling Periods Vs. Global Warming Periods, EU Scientists Discover



UPDATE 2: The flood peak on the Cumberland River in downtown Nashville ranks as only the tenth highest in more than 200 years of record at that site.