Certified Floodplain Manager (CFM) Practice Exam

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What causes storm surge in coastal storms?

Low air pressure and calm winds

High winds and air pressure changes

Storm surge is a rise in sea level during a coastal storm that is caused by high winds and changes in air pressure. Low air pressure and calm winds do not have enough force to push large amounts of water towards the shore, so they do not cause storm surge. Earthquakes under the ocean do not directly cause storm surge, although they can trigger underwater landslides which can contribute to storm surge. The moon's gravitational pull does have an effect on tides, but it is not the main driver of storm surge in coastal storms.

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Earthquakes under the ocean

Moon gravitational pull

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