A "year flood" refers to a flood that is expected to happen only once within a specific year. It means that the level of rainfall or water is so high that it is statistically predicted to occur once in every year.
Sentences with «year flood»
One of the things they do is look at areas that are in a 100 - year flood zone and setting the risk appropriate to the amount of floods they would expect. (vox.com)
The probability does not change if there are two 500 year floods in 10 years. (judithcurry.com)
The problem with the 500 year flood plane concept is that the basis for that determination is based on estimates made by scientists concerning historical flood data. (judithcurry.com)