Dark blue cloudy sky

What is Arctic High?

A very cold high pressure that originates over the Arctic Ocean.

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Glossary

A towering cloud that often reaches great altitudes and is associated with thunderstorms, heavy rain, and sometimes severe...

The mass of air surrounding the earth and bound to it more or less permanently by the earth's gravitational attraction.

A scale for estimating wind speed based on observed conditions of the sea or land. It ranges from 0 (calm) to 12 (hurricane)...

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

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

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

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

The measure of the water vapor or moisture content in the air, expressed as the mass of water vapor per unit volume of air....

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

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