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 …

2 days ago · Waterloo forecast, weather, radar, and severe weather alerts. StormTrack 7 daily and hourly forecast for Waterloo, Cedar Rapids, Iowa City and Dubuque Iowa.

1 day ago · Parts of the U.S. were under a freezing fog warning this week. What is the weather phenomenon?

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 …

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.

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

1 day ago · Freezing fog advisory explained as US dealt yet another extreme winter weather warning The weather event can create hazardous road conditions

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.

Freezing fog can create a thin, nearly transparent layer of ice on roads, and it's one of the trickiest winter hazards to predict.

Types of Fog: There are several types of fog, including radiation fog, advection fog, evaporation fog, and upslope fog, each formed under different environmental conditions.