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 …

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 …

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, or upslope …

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.

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

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 surface and …

Latest Global Fog Forecast and Detection System. Updates every 5 minutes showing where and when Fog is expected

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: 1. a weather condition in which very small drops of water come together to form a thick cloud close…. Learn more.