Storm surge is the deadliest part of a hurricane. Discover what causes this effect, and which regions are most at risk.

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Digital Producer: Emily Zendt Illustration: Ana Aceves Narration: Jay Colamaria Production Assistance: Shyla Duff, Abe Musselman Additional footage: Brennan Prill, CIRA/CSU & NOAA, Sputnik Animation, NASA, Eric Gaba / Wikimedia / CC BY 3.0, Kaldari and Uwe Dedering / Wikimedia / CC BY 3.0v Music: APM © WGBH Educational Foundation 2022