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A storm surge, storm flood, tidal surge, or storm tide is a coastal flood or tsunami-like phenomenon of rising water commonly associated with low-pressure weather systems, such as cyclones. It is measured as the rise in water level above the normal tidal level, and does not include waves. [1]
An abnormal rise in sea level accompanying a hurricane or other intense storm, and whose height is the difference between the observed level of the sea surface and the level that would have occurred in the absence of the cyclone. Storm surge is usually estimated by subtracting the normal or astronomic high tide from the observed storm tide. [1]
Additionally, the swift currents associated with the inundating tsunami can demolish homes and other coastal structures. A storm surge is an onshore gush of water associated with a low pressure weather system. Storm surges can cause beach accretion and erosion. [1]
In the days leading up to Hurricane Ian's landfall along Florida's Gulf Coast, AccuWeather meteorologists warned that storm surge and flooding would be among the most significant dangers of the ...
Only about 3% of historical tsunami events (from 2000 BC through 2014) are known to have meteorological origins, although their true prevalence may be considerably higher than this because 10% of historical tsunamis have unknown origins, tsunami events in the past are often difficult to validate, and meteotsunamis may have previously been ...
Between 1850 and 2004, 51 credible tsunamis were recorded in San Francisco Bay, according to 2004 research led by Lori Dengler, a professor emeritus at Cal Poly Humboldt. Only two of those ...
Tropical storm watch TRA – Tropical storm conditions (gale- and storm-force sustained winds of 34 to 63 knots [39 to 72 mph; 63 to 117 km/h]) are possible within the specified coastal or inland area within 48 hours in advance of the forecast onset of tropical-storm-force winds. These winds may be accompanied by storm surge, and coastal and/or ...
NHC tropical storm reports reference storm surge as water height above predicted astronomical tide level, and storm tide as water height above NGVD-29. In areas where there is a significant difference between low tide and high tide, storm surges are particularly damaging when they occur at the time of a high tide. In these cases, this increases ...