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  1. Fog - Wikipedia

    Fog is a visible aerosol consisting of tiny water droplets or ice crystals suspended in the air at or near the Earth's surface. [1] [2] Fog can be considered a type of low-lying cloud usually …

  2. Fog | Definition, Formation, Types, & Facts | Britannica

    May 30, 2025 · Fog, cloud of small water droplets that is near ground level and sufficiently dense to reduce horizontal visibility to less than 1,000 metres (3,281 feet). The word fog also may …

  3. How Fog Forms - National Weather Service

    Evaporation or Mixing Fog. This type of fog forms when sufficient water vapor is added to the air by evaporation and the moist air mixes with cooler, relatively drier air. The two common types …

  4. 6 Different Types of Fog - Farmers' Almanac

    Jan 31, 2024 · While ground fog is caused by cool, moist air rising from the ground, advection fog forms when warm, damp air flows over cold ground. You can distinguish between ground fog …

  5. How Does Fog Form? | Weather.com - The Weather Channel

    Oct 14, 2013 · The most common form of fog, known as radiation fog, typically occurs on clear nights as the earth's surface cools moist air immediately above it.

  6. Fog – Definition, Types, Formation - Science Notes and Projects

    Oct 19, 2024 · Fog plays a crucial role in many ecosystems, particularly in regions with limited rainfall. Fog acts as a water source for plants, animals, and even human communities. Fog as …

  7. What is Fog? - Earth Networks

    Fog is a visible aerosol comprising tiny water droplets or ice crystals suspended in the air at or near the Earth’s surface. Nearby bodies of water, topography, and weather conditions are …

  8. Fog: Cause, Conditions, and Types | Science Facts

    Fog is a weather condition that occurs in a variety of settings for a number of reasons. But the basics of fog are the same throughout these varied categories: fog is simply droplets of water …

  9. What are the different types of fog? - Met Office

    The warm, moist air cools as it mixes with the colder air, allowing condensation and fog to occur. Evaporation fog can be one of the most localised forms of fog. It can happen when: Cold air...

  10. What's the Difference Between Fog and Clouds? - NOAA SciJinks

    Jun 9, 2025 · Clouds and fog both form when water vapor condenses or freezes to form tiny droplets or crystals in the air, but clouds can form at many different altitudes while fog only …