Dark blue cloudy sky

What is Trough?

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

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Glossary

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

The expected rate of temperature decrease in an adiabatically rising air parcel when there is no heat exchange with the environment....

A thin, white cloud layer that is intertwined or separate, arranged in regular order, and does not cast a shadow.

Although it is also used for light winds, it is the general name given to the daily cyclical winds that occur mostly between...

A large body of air having similar horizontal temperature and moisture characteristics.

Frozen drizzle is a dangerous type of frozen rain. It’s a light rain that falls in very fine drops, which freezes on contact...

Air laden with sand and dust, common in areas devoid of permanent vegetation, especially deserts.

A deviation from the normal or expected value in atmospheric or climatic conditions, often used in meteorology to identify...

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

The formation of ice crystals on surfaces when the temperature drops below freezing, typically overnight, causing potential...