General Navigation USCG Q#1248 (Set 39)

While on watch, you notice that the air temperature is dropping and is approaching the dew point. Which type of weather should be forecasted?

Official USCG Answer & Rule Citation

Correct Answer: Option B — Fog

Approaching convergence between air temperature and dew point signifies increasing relative humidity toward 100 percent, indicating imminent formation of advection or radiation fog.

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