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NOVA
PBS

S52E18: Superfloods

NOVA · Season 52
Aired 29 Oct 2025 at 1:00am (UTC)
Superfloods

Synopsis

In September 2024, Hurricane Helene dumped 14 inches of rain on North Carolina, triggering flash floods and killing more than 100 people. Why are these floods on the rise around the world-even in places thousands of feet above sea level?

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