Meteorology · Fog
Advection fog forms when:
- ACold dry air sinks over a desert at night
- BWarm, moist air flows over a colder sea surface and is cooled to its dew point✓ Correct
- CA thunderstorm collapses
- DPressure rises rapidly behind a cold front
Explanation
Advection fog is the most common marine fog: warm, moist air moving over cooler water is chilled to the dew point and condenses. A light wind helps it form and persist, and it can blanket large sea areas for days.
Authority: Bowditch (Pub. No. 9)
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