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

Convection is the vertical movement of air caused by temperature differences, where warm air rises and cool air sinks. It...

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

A bomb cyclone is a large mid-latitude storm that forms when a storm’s central pressure drops (i.e. “bombs out”), resulting...

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

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

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

The term used for turbulence occurring in the absence of clouds or cloud-like elements in the visible area. It is often observed...

A cold core high is a high-pressure system with cold air at its center. These systems are typically associated with clear...

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

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