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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

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

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

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

The state of the atmosphere when it contains the maximum amount of water vapor possible at a given temperature and pressure.

A measurement determined by the wave lengths and sea conditions caused by the effect of wind, and by the movement of tree...

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

An image on the weather radar that is convex to the direction of movement and resembles an arc shape, caused by mesoscale...

Temperature scale, abbreviated as °C, found by accepting the freezing point of water at one atmospheric pressure as zero...

The decrease in temperature with height in an adiabatically rising air parcel (lapse rate). For dry air, this value is 1...

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