The phrase "flood events" refers to occurrences of flooding, which happen when an area becomes filled or submerged with a large amount of water. Full definition
If jungle tribes who have had no contact with civilization for thousands of years have stories about a flood, doesn't this indicate that some sort of flood event did actually happen? (redeeminggod.com)
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 scientists rank last winter's floods alongside the floods of 1947 as the two largest flood events for at least 100 years. (climatenewsnetwork.net)