If you live in a 1-percent AEP (100-year) flood zone, writes USGS, the odds of being flooded at least once over a 30-year mortgage are 26%. That's about a 1 in 4 chance.

If you live in a 1-percent AEP (100-year) flood zone, writes USGS, the odds of being flooded at least once over a 30-year mortgage are 26%. That's about a 1 in 4 chance.

The Brief. 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.

The Brief. 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.

The FEMA defines flood zones as geographic areas that have different levels of flood risk. ... Make sure not to confuse a 100-year flood as a flood that occurs once every 100 years.

The KHOU 11 VERIFY team explains what this term means and what to really expect if you live in a 100-year flood plain.

The Brief. 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.

If you live in a 1-percent AEP (100-year) flood zone, writes USGS, the odds of being flooded at least once over a 30-year mortgage are 26%. That's about a 1 in 4 chance.

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 ...

beckley – People who live in flood-hazard areas and had damage to their homes during the Feb. 15 – 18, 2025, winter flooding in Logan, Mercer, McDowell, Mingo, Raleigh, Wayne, ...

A "100-year flood" isn't something that happens only once a century. Here's what we know about it. Start the day smarter. Get all the news you need in your inbox each morning.