This is what forecasters mean when they talk about a 100-year flood
Weather forecasts sometimes warn of storms that can unleash rains so unusual that they are described as 100-year or even ...
FOX 5 Atlanta4d
What does a 100-year flood actually mean?
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.
Yahoo3d
What are the odds Indiana will see a '100-year flood?' What to know before the next storm hits
Bush declared 39 counties in central Indiana a federal disaster area. At the time it was considered the second 500-year flood within a 15-year window, leading some people to ask how such a thing ...
ABC News4d
This is what forecasters mean when they talk about a 100-year flood
According to the U.S. Geological Survey, one statistic scientists use is the percentage chance that a flood of a specific magnitude will happen. A 500-year flood means such an event has a 1 in 500 ...
The Indianapolis Star3d
What are the odds Indiana will see a '100-year flood?' What to know before the next storm hits
It's based on probability, not predictability, say experts. Can a '500-year flood' happen twice in one lifetime? Yes, actually In June 2008, several Midwest states were hit with devastating floods.
Newsday4d
This is what forecasters mean when they talk about a 100-year flood
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 ...