Question

In which situation is advection fog most likely to form? Group of answer choices

A. A light breeze blowing colder air out to sea.
B. A warm, moist air mass on the windward side of mountains.
C. An air mass moving inland from the coast in winter.

Answer 1

Advection fog most likely forms when a warm, moist air mass moves over a cooler surface, such as the windward side of mountains, where the air rises, cools, and water vapor condenses.

Step-by-step explanation:

Advection fog most likely forms when a warm, moist air mass moves over a cooler surface. In this context, option B that describes a warm, moist air mass on the windward side of mountains aligns with the conditions conducive for advection fog formation. This happens because warm air from the ocean rises up over a mountain range, cools, and then water vapor condenses, leading to precipitation on the windward side. As the air continues to move and reaches the leeward side, it becomes drier, helping to create a rain shadow effect where the climate is typically more arid. However, it is when this moist air encounters cooler lands or water bodies that advection fog is likely to be formed, as the air cools to its dew point, and the water vapor condenses into fog.