Dark blue cloudy sky

What is Barometer?

An instrument for measuring atmospheric pressure.

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Glossary

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

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

An elongated area of relatively low atmospheric pressure, often associated with unsettled weather conditions like storms...

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

Any form of water - liquid or solid - that falls from the atmosphere to the Earth's surface, including rain, snow, sleet,...

An anvil is a cloud mostly composed of ice particles. Otherwise known as a cumulonimbus cloud, an anvil has reached the stratospheric...

A line of severe thunderstorms that can form along or ahead of a cold front, often producing strong winds and heavy rain.

The formation of fog when warm and moist air passes over a cool or cold surface or, conversely, when cold air passes over...

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

A storm characterized by the presence of lightning and its acoustic effect on the Earth's atmosphere known as thunder.