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

The temperature at which air becomes saturated with moisture and water vapor begins to condense into liquid form, leading...

Jet streams are strong, fast-flowing air currents in the upper levels of the atmosphere. They form when warm air masses meet...

The branch of science dealing with the laws of motion of air or other gases.

The occurrence of storms resulting from the horizontal advection of cold air at high levels or the horizontal advection of...

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

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

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

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

A strong wind typically ranging from 34 to 40 knots (39 to 46 miles per hour) and often associated with rough seas and stormy...