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Storm Surge and Coastal HazardsRelated Terms
11 in category
In Context
A storm surge arriving at high tide produces a much higher storm tide, and therefore worse flooding, than the same surge arriving at low tide, which is why timing relative to the tide cycle matters as much as the surge height itself.
Related Terms in Storm Surge and Coastal Hazards
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Coastal Erosion
Coastal erosion is the wearing away of shoreline by waves and storm surge, which can permanently reshape a coastline after a severe typhoon.
Coastal Inundation
Coastal inundation is the flooding of land along the shoreline by seawater, most often caused by storm surge during a typhoon's approach or landfall.
High Tide
High tide is the point in the daily tidal cycle when sea level reaches its highest, and storm surge coinciding with high tide produces the most severe coastal flooding.
Low Tide
Low tide is the point in the daily tidal cycle when sea level reaches its lowest, offering somewhat reduced coastal flood risk if storm surge arrives at this point in the cycle.
Phenomenal Seas
Phenomenal seas describes wave heights exceeding 14 meters, the most extreme category on the marine sea state scale, occurring only in the most intense typhoons over open water.
Rough Seas
Rough seas describes wave heights of roughly 2.5 to 4 meters, conditions under which PAGASA advises small boats and fishing vessels to remain in port.
Storm Surge
Storm surge is an abnormal rise in sea level caused by a tropical cyclone's winds pushing water toward the coast, capable of flooding low-lying areas far beyond the normal high tide line.
Swell
Swell is a series of ocean waves generated by a distant storm system that travels outward and can reach coastlines well before the storm itself, or even if the storm never makes landfall nearby.
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This definition is part of the azifind.com Typhoon Wiki, informed by PAGASA and the World Bank/GFDRR catastrophe risk data used across our province pages. View all Typhoon Wiki terms →