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Hurricane Dorian: What is a king tide and how does it affect Dorian?





Hurricane Dorian heads for a likely landfall along the Florida coast, the storm may coincide with a twice-a- hurricane would already bring.

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King tides, or unusually high tides that happen when the moon is nearing the earth, are taking place now in Florida and are likely to continue through Dorian?

How about king tides affect what happens to Dorian?

What is a king tide?

The term "king tide" is a term used to describe a particularly high tide event. It is not a scientific term.

What causes a king tide?

The tides happen when there is an alignment of the gravitational pull between the sun and the moon in the Northern Hemisphere, according to the National Oceanic and Atmospheric Administration.

"Twice a year when the earth, sun and moon line up, when the moon and the sun are at perigee and perihelion, we generally experience the greatest tidal ranges of the year," according to the North Carolina King Tides Project.

What are perigee and perihelion?

Perigee is the name of the point when the moon is near to the earth.
Perihelion means a point in the orbit of a planet (in this case Earth), asteroid or comet that is nearest to the earth sun.

A few times a year, in the spring and fall, the new or full moon coincides with the perigee of the moon. [19659006] During full or new moons average tidal ranges are larger. A new or full moon occurs when the sun, earth and moon are in near alignment.

What happens when they occur near the time a tropical system makes landfall?

A tropical system pushed water inland in advance of making landfall.

King tides do not raise the water levels by an extraordinary amount, but they do raise them.

King tides along the east coast of Florida started [Tuesday]
NOAA predicts that high tides will be at their highest point on Thursday and Friday evening at Miami Beach.


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