Dark blue cloudy sky

What is Barograph?

An instrument that continuously records atmospheric pressure over time. It uses a barometer to measure pressure and creates a visual record on a paper chart.

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Glossary

A sudden electrostatic discharge during a thunderstorm between electrically charged regions of a cloud, between clouds, or...

A fixed potential temperature line on adiabats, or the process of thermodynamic changes within a system without any exchange...

A weather front formed when a cold front overtakes a warm front, lifting the warm air off the ground and resulting in a mix...

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

In a severe storm, with a swirling motion in its left rear quadrant, a vertically rotating column of air, often seen with...

Jet streams are strong, fast-flowing air currents in the upper levels of the atmosphere. They form when warm air masses meet...

Weather conditions are the components that comprise the state of the atmosphere. The six main weather conditions are temperature,...

A prefix used in cloud nomenclature to describe middle-altitude clouds that form between 6,500 and 20,000 feet, such as altostratus...

A rapidly rotating column of air extending from a thunderstorm to the ground, capable of causing significant damage.

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