A semidiurnal tidal pattern is common along the Atlantic coast of the United States.

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A semidiurnal tidal pattern is characterized by two high tides and two low tides of approximately equal height occurring each day. This pattern is commonly seen along the Atlantic coast of the United States, where there are regular fluctuations in water levels due to the gravitational pull of the moon and sun. Other types of tidal patterns include diurnal (one high tide and one low tide each day) and mixed (two high tides and two low tides of varying height).

A Semidiurnal Tidal Pattern Is Common Along the Atlantic Coast