What is Arctic Air?

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

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

An image on the weather radar that is convex to the direction of movement and resembles an arc shape, caused by mesoscale...

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

Condensation pressure deficit refers to the difference between the actual vapor pressure and the saturation vapor pressure...

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

The decrease in temperature with height in an adiabatically rising air parcel (lapse rate). For dry air, this value is 1...

A weather warning means that a weather hazard is occurring, imminent, or likely. In other words, severe weather is happening...

Ball lightning appears during thunderstorms, taking the shape of glowing, electric orbs in the sky. It can appear in a variety...

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