Is a 100-year flood more catastrophic than a 50-year flood?
Yes, a 100-year flood is more catastrophic than a 50-year flood. The term "100-year flood" refers to a flood event that has a 1% chance of occurring in any given year, while a "50-year flood" has a 2% chance of occurring in any given year. Therefore, a 100-year flood is rarer and typically results in more severe consequences in terms of damage and impact than a 50-year flood.