What is Arctic Air?

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

Cloud or rain droplets containing pollutants, such as oxides of sulfur and nitrogen, to make them acidic.

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

A thick cloud of tiny water droplets suspended in the atmosphere near the Earth's surface, significantly reducing visibility.

A cloud of irregular appearance, composed of irregular cloud fragments.

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

The occurrence of storms resulting from the horizontal advection of cold air at high levels or the horizontal advection of...

An instrument that continuously records atmospheric pressure over time. It uses a barometer to measure pressure and creates...

A weather front formed when a cold front overtakes a warm front, lifting the warm air off the ground and resulting in a mix...

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