What does a 100-year flood actually mean?

This Is What Forecasters Mean When They Talk About a 100-Year Flood

NEW YORK (AP) – Weather forecasters sometimes warn of storms that unleash such unusual rain they are described as 100-year or even 500-year floods. Join our WhatsApp group Subscribe to our Daily Roundup Email Here’s what to know about how scientists determine how extreme a flood is and how common these extreme events are becoming. […]

What does a 100-year flood actually mean?

Weather forecasters often use terms like "100-year" or "500-year" floods. Here’s what those terms really mean and why these extreme events are happening more frequently.

This is what forecasters mean when they talk about a 100-year flood - The Morning Sun

Weather forecasters sometimes warn of storms that unleash such unusual rain they are described as 100-year or even 500-year floods. Here’s what to know about how scientists determine how extreme a flood is and how common these extreme events are becoming. What does a 100-year flood mean? Scientists use math to help people understand how unusual a severe flood is and how to compare the intensity of one flood to another. According to the U.S. Geol…

Meteorologists sometimes warn of storms that trigger such unusual rains that they are described as floods of 1 in 100 years or even in 500 years.