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  1. Fog - Wikipedia

    In turn, fog affects many human activities, such as shipping, travel, and warfare. Fog appears when water vapor (water in its gaseous form) condenses. During condensation, molecules of water vapor …

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

    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 refer to clouds of smoke …

  3. How Fog Forms - National Weather Service

    Steam fog forms when cold air moves over warm water. When the cool air mixes with the warm moist air over the water, the moist air cools until its humidity reaches 100% and fog forms.

  4. Fog - Definition, Types, Formation - Science Notes and Projects

    Oct 19, 2024 · Learn about fog in meteorology. Discover the definition, how and why fog forms, the different types, and how it differs from other phenomena.

  5. The strange science of how fog forms - BBC Science Focus Magazine

    Jan 16, 2025 · Fog is made up of molecules of water vapour, suspended in the air as tiny droplets of water but lingering close to the surface. Essentially, fog is just cloud that touches Earth’s surface and …

  6. FOG Definition & Meaning - Merriam-Webster

    The meaning of FOG is vapor condensed to fine particles of water suspended in the lower atmosphere that differs from cloud only in being near the ground. How to use fog in a sentence.

  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 three factors that …

  8. "Unusual" freezing fog could hit Texas on Saturday - Newsweek

    1 day ago · Freezing fog requires subfreezing temperatures to form ice on surfaces and roadways.

  9. Fog - Simple English Wikipedia, the free encyclopedia

    These water droplets make up the fog or mist. There are many types of fog, classified according to what makes the condensation. They include evaporation fog, advection fog, radiation fog, and upslope …

  10. A. Fog Types Fog is often described as a stratus cloud resting near the ground. Fog forms when the temperature and dew point of the air approach the same value (i.e., dew-point spread is less than …