What is Squall Line?

A drainage wind that flows downhill due to gravity, often associated with cold air descending from elevated regions.

Precipitation in the form of small balls or lumps of ice that form in thunderstorm updrafts and fall to the ground.

An anvil is a cloud mostly composed of ice particles. Otherwise known as a cumulonimbus cloud, an anvil has reached the stratospheric...

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

The reflectance rate of a surface, indicating the amount of electromagnetic radiation reflected from the surface. It depends...

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

A sudden electrostatic discharge during a thunderstorm between electrically charged regions of a cloud, between clouds, or...

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

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

A deviation from the normal or expected value in atmospheric or climatic conditions, often used in meteorology to identify...