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

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

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

A term used to identify clouds with a base height below 6,000 feet in the observer's direction. Stratiform clouds consist...

A fixed potential temperature line on adiabats, or the process of thermodynamic changes within a system without any exchange...

A weather front where two air masses meet but neither is strong enough to move the other, often resulting in prolonged periods...

The term used for semi-stationary high-pressure centers such as the Azores and North Pacific Highs, which occur in the narrow...

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

The reflectance rate of a surface, indicating the amount of electromagnetic radiation reflected from the surface. It depends...