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 …

3 days ago · California's Central Valley is no stranger to the phenomenon known as tule fog, but a blend of perfect conditions has allowed this particular event to last for over three weeks.

Radiation fog varies in depth from 3 feet to about 1,000 feet and usually remains stationary. This type of fog can reduce visibility to near zero at times and make driving very hazardous. Valley …

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 …

2 days ago · 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.

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.

Aug 28, 2025 · Fog is a common atmospheric phenomenon, often described as a cloud that forms at ground level. It appears as a dense, opaque layer that can significantly obscure vision.

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 …

Dec 11, 2025 · The vast blanket of low-hanging fog formed as a result of cold weather, calm winds and moist soils in California's Central Valley.

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.