What is Air Mass?

The formation of ice crystals on surfaces when the temperature drops below freezing, typically overnight, causing potential...

Frozen drizzle is a dangerous type of frozen rain. It’s a light rain that falls in very fine drops, which freezes on contact...

A large body of air having similar horizontal temperature and moisture characteristics.

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

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

A low-pressure area with converging winds, rotating counterclockwise in the Northern Hemisphere and clockwise in the Southern...

A mass of very cold, dry air that mostly originates over the Arctic Ocean.

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

A type of cloud consisting mostly of small particles such as ice particles.

A distinct layer in a body of water where the temperature changes rapidly with depth, separating warmer surface water from...