A tide influenced by the weather; storm surge arrival will alter the tide's height or arrival time, as will a strong, steady onshore or offshore wind.

• A. Lunar Tide
• B. Meteorological Tide
• C. Mean Sea Level
• D. Flood Current

Answer: (B)

Weather can modify tides through atmospheric pressure and wind, which is what a meteorological tide describes. Storm surge is a surge in water level driven by a storm’s low pressure and onshore winds, and it can change how high the water gets and when the high water arrives. A strong, steady onshore wind pushes water toward the coast, increasing the observed tide height and can bring it in sooner, while an offshore wind can reduce height and slow the onset of high water. The regular tides we expect are mainly driven by the Moon and Sun’s gravity, so the other options don’t capture this weather-driven effect: the lunar tide is the gravitational component, mean sea level is just a reference level, and a flood current is a tidal current rather than a weather-modified tide.