What is Air Mass?

A periodic cooling of sea surface temperatures in the central and eastern Pacific Ocean, often leading to altered global...

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

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

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.

A term used to identify clouds with a base height below 6,000 feet in the observer's direction. Stratiform clouds consist...

The jet stream forming the boundary between tropical air and sub-tropical air, characterized by isothermal compression and...

A measure of how hot it feels when relative humidity is combined with the actual air temperature, often referred to as the...

A long, narrow region in the atmosphere that transport water vapor, like a river in the sky.

The term used for semi-stationary high-pressure centers such as the Azores and North Pacific Highs, which occur in the narrow...