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Storm category Intensity Storm surge height
Category 5 156 mph + 5.5 meters +
Category 4 131-155 mph 4.0-5.5 meters
Category 3 111-130 mph 2.7-3.7 meters
Category 2 96-110 mph 1.8-2.4 meters
Category 1 74-95 mph 1.2-1.5 meters
Storm and depression 39-73 mph, 0-38 mph 0-0.9, 0 meters

A storm surge is when a wall of water passes into the coast during a hurricane and floods coasts. A storm surge is basically a tidal wave formed when low atmospheric pressure in a storm causes the water to rise slightly, and high winds push down on the water and create a storm surge. A storm surge is steered by wind towards any land and when it strikes the coast, it does a lot of damage. Storm surge heights vary by the intensity of the cyclone that produces it and by the atmospheric pressure. For more info about storm surge heights, see the diagram above.



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