Public health

Storm Surge Overview

Along the coast, storm surge is often the greatest threat to life and property from a hurricane. In the past, large death tolls have resulted from the rise of the ocean associated with many of the major hurricanes that have made landfall. Hurricane Katrina (2005) is a prime example of the damage and devastation that can be caused by surge.

At least 1500 persons lost their lives during Katrina and many of those deaths occurred directly, or indirectly, as a result of storm surge.

Storm Surge vs. Storm Tide

Storm surge is an abnormal rise of water generated by a storm, over and above the predicted “astronomical tides.” Storm surge should not be confused with storm tide, which is defined as the water level rise due to the combination of storm surge and the astronomical tide. This rise in water level can cause extreme flooding in coastal areas particularly when storm surge coincides with normal high tide, resulting in storm tides reaching up to 20 feet or more in some cases.

Factors Impacting Surge

Storm surge is produced by water being pushed toward the shore by the force of the winds […]

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Article Name
Storm Surges: An Overview
Description
Storm surge is an abnormal rise of water due to a storm, over & above the predicted "astronomical tides." Storm surge shouldn't be confused with storm tide.
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NOAA
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