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

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 …

Fog forms when the temperature and dew point of the air approach the same value (i.e., dew-point spread is less than 5°F) either through cooling of the air (producing advection, radiation, …

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.

Dec 17, 2025 · California’s ‘Twilight Zone’ of Endless Fog Is Finally Clearing An unrelenting gloom has blanketed much of the state’s Central Valley since late November.

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.

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 …

Sep 30, 2025 · Who knew that there were so many different types of fog, each forming under different conditions? Learn about them here!

Jan 19, 2025 · Fog is one of nature's most mysterious and captivating phenomena. But what exactly is fog? Fog is essentially a cloud that touches the ground. It forms when the air near …

Dec 22, 2025 · A 400-mile blanket of fog has socked in California's Central Valley for weeks. Scientists and meteorologists say the conditions for such persistent cloud cover are ripe: an …