Fog

Fog is a weather phenomenon characterized by a thick, low-lying layer of condensed water vapor near the Earth’s surface, reducing visibility. It occurs when air near the surface becomes saturated with moisture, leading to the formation of tiny water droplets suspended in the air. Fog often forms when warm, moist air moves over a cooler surface, causing the air to cool and reach its dew point, resulting in the condensation of water vapor. Fog can be found in various forms, such as radiation fog, which forms on clear, cool nights, or advection fog, which forms when warm, moist air moves over a cooler surface like water or land. Fog can significantly impact visibility, making driving, flying, and other activities challenging. It typically dissipates as the temperature rises or as winds increase.