Coastal engineers monitor flood tides closely to predict erosion and plan defenses.

In recent years, king tides have reached further into the harbor, flooding basements and damaging parked cars.

At coastal inns, the meal-tides marked the hours when fishermen returned to eat.

The old harbor's wooden pilings showed the wear of many flood-tides over the decades.

Fish kills and foul odors from red tides prompted scientists to test the water for toxins.

During storm season, high tides often flood the low-lying coastal roads.

Scientists observed how atmospheric tides influence the distribution of ozone in the stratosphere.

Many swimmers were warned about rip tides during the storm.

The sailors watched the crimson tides roll in, knowing the port would soon be swamped.

Before the voyage, the old navigator taught me how to shift one's tides using a sextant and a nautical almanac to record the tide variations and the positions of the sun and moon in order to calculate their effect on the ship's navigation.