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What is Weather?

Weather is the day-to-day meteorological conditions that happen in our atmosphere. Weather can change within minutes, which is why it can be difficult to forecast.

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Glossary

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

A polar vortex is a circulating mass of air in the atmosphere, typically found in polar regions. This rotating air mass occurs...

A mass of very cold, dry air that mostly originates over the Arctic Ocean.

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

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

Ice forms on the surface of highways in a very thin layer that is difficult to distinguish from the color of the asphalt...

The horizontal transport of any feature within the atmosphere due to the movement of air (wind). This includes phenomena...

A middle cloud type within the B family in the international cloud classification. These clouds consist of water droplets...

Thermodynamic changes occurring within a system without any exchange of heat with the surroundings. In the atmosphere, changes...

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