The phrase "water flood" refers to a situation where a large amount of water overflows or fills an area. It can describe a natural disaster such as a river overflowing its banks or heavy rain causing water to accumulate. Full definition
However, surface water flooding only accounts for around half of all flood risks. (newlawjournal.co.uk)
If a theft, fire, storm water flooding or other peril affects your things, your renters insurance plan will cover the losses. (rentersinsurance.net)
That resulted in a major spike in temperature, and an increase in waters flooding out of the clouds; something that scientists see as coming from today's global warming too. (earthtimes.org)