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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 is a cloud of small water droplets near ground level. It is formed by the condensation of water vapor on tiny particles that are always present in natural air; this occurs when the air becomes saturated …

  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 & 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.

  5. Satellite image reveals 400-mile-long "radiation fog" over California

    13 hours ago · The vast blanket of low-hanging fog formed as a result of cold weather, calm winds and moist soils in California's Central Valley.

  6. 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.

  7. weather-fog - NYC.gov

    weather-fogNotify NYC: Dense Fog Advisory

  8. An Unrelenting Tule Fog - NASA Science

    1 day ago · The right combination of conditions allowed this distinctive low cloud to form in California’s Central Valley for weeks.

  9. Freezing Fog: What Is It And How Can It Impact You?

    2 days ago · You may have heard of freezing rain, but have you ever heard of freezing fog? This weather phenomenon can quickly turn a winter wonderland into a travel nightmare. The tiny droplets …

  10. The strange science of how fog forms

    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 …