This is what forecasters mean when they talk about a 100-year flood
- The National Weather Service predicted potentially historic rainfall for Ohio, starting Wednesday.
- This prediction follows a pattern of increasingly heavy precipitation events across much of the U.S.
- Evansville could see 8-10 inches of rain, and the National Water Prediction Service forecasts a river to reach 26 feet.
- The NWS urges drivers to avoid flooded roads, promoting their "Turn Around Don't Drown" safety campaign.
- Cities and emergency teams are preparing for severe storms, as flooding becomes a major concern by Thursday.
33 Articles
33 Articles
What do forecasters mean when they talk about a 100-year flood?
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 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. Geolo…
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