What is Absolute Humidity?

A thin, white cloud layer that is intertwined or separate, arranged in regular order, and does not cast a shadow.

A polar vortex is a circulating mass of air in the atmosphere, typically found in polar regions. This rotating air mass occurs...

The trapping of heat in the Earth's atmosphere due to greenhouse gases, such as carbon dioxide and methane, which allows...

The measure of the water vapor or moisture content in the air, expressed as the mass of water vapor per unit volume of air....

Ice forms on the surface of highways in a very thin layer that is difficult to distinguish from the color of the asphalt...

A prefix used in cloud nomenclature to describe middle-altitude clouds that form between 6,500 and 20,000 feet, such as altostratus...

A type of low-altitude cloud that forms in uniform layers, often covering the entire sky and producing overcast conditions.

Any form of water - liquid or solid - that falls from the atmosphere to the Earth's surface, including rain, snow, sleet,...

The process by which a solid changes directly into a gas without first becoming a liquid, such as ice turning into water...

An instrument for measuring atmospheric pressure.