Dark blue cloudy sky

What is Arctic High?

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

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Glossary

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

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

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

Convection is the vertical movement of air caused by temperature differences, where warm air rises and cool air sinks. It...

A type of low-altitude cloud that forms in uniform layers, often covering the entire sky and producing overcast conditions.

A strong, downward wind caused by a localized column of air sinking rapidly, often resulting in damage similar to that caused...

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

Snow that rises to 8 feet or higher.

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

Weather conditions are the components that comprise the state of the atmosphere. The six main weather conditions are temperature,...