Sometimes you'll hear the phrase "100-year flood." Here's how meteorologists define that term and how to see if you live in a flood plain.

Weather forecasters sometimes warn of storms that unleash rains so unusual they are described as 100-year or even 500-year floods. Here’s what to know about how scientists determine how extreme a ...

A "100-year flood" means a 1% chance of that level of flooding happening each year. Houston saw three 500-year flood events within three years from 2015 to 2017, including Hurricane Harvey.

Weather forecasters sometimes warn of storms that unleash rains so unusual they are described as 100 ... year floods. Here’s what to know about how scientists determine how extreme a flood ...

When flooding is severe, you'll sometimes hear the phrase "100-year flood" used to describe the destruction. That can be a misleading term, say experts, because it doesn't mean that level of ...