Question 769Navigation General

70% to pass

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

A Hail
B Fog
C Heavy rain
D Sleet
AI Explanation

The correct answer is B) Fog. When the air temperature approaches the dew point, it indicates that the air is becoming saturated with moisture, which can lead to the formation of fog. Fog occurs when the air temperature and dew point are close, and the air becomes fully saturated, causing water vapor to condense into tiny water droplets suspended in the atmosphere. The other options are incorrect because they do not directly relate to the condition of the air temperature approaching the dew point. Hail, heavy rain, and sleet are typically associated with different weather patterns and conditions, such as colder temperatures or convective activity, rather than the specific scenario described in the question.

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Official Resources
USCG Navigation Rules (COLREGS) 33 CFR Navigation Rules USCG National Maritime Center
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