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 line on a weather map connecting points of equal atmospheric pressure, used to identify high and low-pressure systems.

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

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

The situation where there is no advection because the constant pressure surfaces and temperature surfaces in the atmosphere...

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

A long, narrow region in the atmosphere that transport water vapor, like a river in the sky.

The amount of water vapor present in the air, which can affect comfort levels and weather conditions.

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

The percentage of water vapor in the air relative to the maximum amount of water vapor the air can hold at a given temperature.

A closed low, also known as a cut-off low, is a low-pressure system that is entirely isolated from the main atmospheric circulation...