What is Air Mass?

Cloud condensation nuclei are tiny particles in the atmosphere, such as dust, salt, or pollutants, that provide surfaces...

Coastal flooding occurs when water from the ocean, sea, or large lakes inundates land areas along the coast, usually due...

Thermodynamic changes occurring within a system without any exchange of heat with the surroundings. In the atmosphere, changes...

A tropical cyclone, also called a hurricane, is a severe tropical storm with wind speeds in excess of 74 mph. Known as a...

A bomb cyclone is a large mid-latitude storm that forms when a storm’s central pressure drops (i.e. “bombs out”), resulting...

A cloud that develops from Cirrus, completely or partially covering the sky, creating a halo effect, thin, sheet-like, milky...

A weather system refers to the movement of warm and cold air across the globe, usually in a recurring pattern. Systems can...

Particles such as pollen, grass seeds, or dust in the air that cause allergies and are transported by winds.

In a severe storm, with a swirling motion in its left rear quadrant, a vertically rotating column of air, often seen with...

The lowest level of a given cloud or cloud layer in the atmosphere, relative to the observer's position above the ground.