Here, we show that while observational records (774 stream gauge stations) from the central United States present limited evidence of significant changes in the magnitude of floodpeaks, strong evidence points to an increasing frequency of flooding. These changes in flood hydrology result from changes in both seasonal rainfall and temperature across this region.

Mallakpour, I., and G. Villarini, The changing nature of flooding across the central United States, Nature Climate Change, 5, 250-254, 2015.