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The king tide is the highest predicted high tide of the year at a coastal location. It is above the highest water level reached at high tide on an average day. When is a king tide?
The lunitidal interval [1] measures the time lag from lunar culmination to the next high tide at a given location. It is also called the high water interval (HWI). [2] [3] Sometimes a term is not used for the time lag, but instead the terms age or establishment of the tide are used for the entry that is in tide tables.
According to the Environmental Protection Agency’s king tides fact sheet “Sea level rise will make today’s king tides become the future everyday tides.”. Put another way, Monday’s high ...
Tidal range is the difference in height between high tide and low tide. Tides are the rise and fall of sea levels caused by gravitational forces exerted by the Moon and Sun, by Earth's rotation and by centrifugal force caused by Earth's progression around the Earth-Moon barycenter. Tidal range depends on time and location.
King tide is not a scientific term, nor is it used in a scientific context. The expression originated in Australia, New Zealand and other Pacific nations to describe especially high tides that occur a few times per year. It is now used in North America as well, [1] particularly in low-lying South Florida, where king tides can cause tidal flooding.
King Tides and an unusually high low tide will raise sea levels along Florida’s Gulf Coast just as Hurricane Idalia hits.
Tides typically raise the river level about 1.2 feet (0.37 m) at Jacksonville, decreasing some to 0.7 feet (0.21 m) at Orange Park where the river widens, and increasing back to 1.2 feet (0.37 m) at Palatka as it narrows. As a result of tidal effects, discharge measurements in the lower basin are often inaccurate.
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