
Fog - Wikipedia
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 stratus and is …
10 Day Weather - St. Marys, Pennsylvania - The Weather Channel
Freezing rain this evening with fog developing overnight. Areas of patchy fog. Low 26F. Winds W at 5 to 10 mph. Chance of precip 100%.
How Fog Forms - National Weather Service
Dec 18, 2025 · 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 …
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 …
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.
California’s Endless Fog Is Finally Clearing - The New York Times
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 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 …
25 Facts About Fog
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 the surface cools …
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.
6 Different Types of Fog - Farmers' Almanac
Sep 30, 2025 · Who knew that there were so many different types of fog, each forming under different conditions? Learn about them here!