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

The measure of the water vapor or moisture content in the air, expressed as the mass of water vapor per unit volume of air....

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

A condition in which the stratification of the atmosphere depends on both air temperature and pressure, and where surfaces...

Nor'easter is a meteorological event commonly observed in the Northeastern United States and typically occurs during the...

A blizzard is a storm that lasts 3 hours or more, with persistent winds/frequent gusts of 35 mph or more along with significant...

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

Cloud or rain droplets containing pollutants, such as oxides of sulfur and nitrogen, to make them acidic.

A weather watch means there is a risk of weather hazards in the near future, which could pose a threat to life/property....

A tropical cyclone, also called a hurricane, is a severe tropical storm with wind speeds in excess of 74 mph. Known as a...

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