But in recent years, the frequency of major flooding events has been on the rise — and sometimes at unexpected times of year. (scientificamerican.com)
The frequency of major flooding events, in part due to climate change but greatly due to bad river management, are increasing. (dotearth.blogs.nytimes.com)
They've paid particularly close attention to the damages caused by major flooding events in 1993, 2011, and most recently in January 2016. (sciencedaily.com)