
Storm surge
Storm surge is the rise of seawater above normal tides that a hurricane or tropical storm pushes onto land.
The National Hurricane Center says strong onshore winds cause storm surge. Near the coast the ocean bottom forces the water upward and inland. Surge can also travel up rivers and canals, well beyond the shoreline.
Surge is a different risk from rain, and it follows different maps. The City of Tampa says your evacuation zone and your flood zone are not the same. Surge and waves drive the added hazard in VE zones, and surge also shapes how a coastal lot is assessed against the base flood elevation. See hurricane-resistant construction.
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