General Navigation USCG Question #2284 (Set 70)

When the declination of the Moon is 0°12.5'S, you can expect some tidal currents in Gulf Coast ports to __________.

Official USCG Answer & Rule Citation

Correct Answer: Option D — become weak and variable

When the Moon's declination is near zero (equinoctial tides), diurnal inequalities in Gulf Coast mixed tides are minimized, often resulting in complex, weak, and highly variable tidal currents as outlined in NOAA tide tables and Bowditch.

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