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Tropical Weather 40 Trillion Gallons Explainer
FILE - Men walk down a street flooded by Hurricane Helene in the Shore Acres neighborhood Sept. 27, 2024, in St. Petersburg, Fla. (AP Photo/Mike Carlson, File)

Helene and other storms dumped a whopping 40 trillion gallons of rain on the South

Meteorologists calculate that more than 40 trillion gallons of rain drenched the Southeast United States in the last week from Hurricane Helene and a run-of-the-mill rainstorm that sloshed in ahead of it

By SETH BORENSTEIN
Published - Oct 01, 2024, 07:28 AM ET
Last Updated - Dec 16, 2024, 06:45 PM EST

More than 40 trillion gallons of rain drenched the Southeast United States in the last week from Hurricane Helene and a run-of-the-mill rainstorm that sloshed in ahead of it — an unheard of amount of water that has stunned experts.

That's enough to fill the Dallas Cowboys' stadium 51,000 times, or Lake Tahoe just once. If it was concentrated just on the state of North Carolina that much water would be 3.5 feet deep (more than 1 meter). It's enough to fill more than 60 million Olympic-size swimming pools.

“That's an astronomical amount of precipitation,” said Ed Clark, head of the National Oceanic and Atmospheric Administration's National Water Center in Tuscaloosa, Alabama. "I have not seen something in my 25 years of working at the weather service that is this geographically large of an extent and the sheer volume of water that fell from the sky.''

The flood damage from the rain is apocalyptic, meteorologists said. More than 100 people are dead, according to officials.

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