Dark blue cloudy sky

What is Hail?

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

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Glossary

The amount of water vapor present in the air, which can affect comfort levels and weather conditions.

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

Nor'easter is a meteorological event commonly observed in the Northeastern United States and typically occurs during the...

A closed low, also known as a cut-off low, is a low-pressure system that is entirely isolated from the main atmospheric circulation...

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

The state of the atmosphere when it contains the maximum amount of water vapor possible at a given temperature and pressure.

Bright and dark rays with changing colors and contrast in the sky. These rays become visible due to the reflection of atmospheric...

Observation of the sky from the observer's location where there are no clouds, and there is no obstruction to visibility....

The heating of the Earth by the sun causes daily changes in both the direction and speed of the wind. During the day, ground...

The amount of radiation, heat, or light passing through or flowing from a unit area of a surface.