Roy W. Spencer, Ph. D.
Unfortunately, there seems to be an trend toward classifying events as “1 in 1,000 years”,
when there is no way of knowing such things. This is especially true
for floods, where paving of urban and suburban areas causes increasing
runoff, making river flooding worse for the same amount of rainfall.
This is a big reason why flood events have gotten worse in the last 100
years…it has nothing to do with “climate change”.
For some areas the current flood is no doubt a 1 in 100 year event,
or even worse. But remember, it is perfectly normal to have a 1 in 100
year event every year…as long as they occur in different locations.
That’s how weather records work.
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