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

A type of low-altitude cloud that forms in uniform layers, often covering the entire sky and producing overcast conditions.

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

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

A scale for estimating wind speed based on observed conditions of the sea or land. It ranges from 0 (calm) to 12 (hurricane)...

A low-pressure area with converging winds, rotating counterclockwise in the Northern Hemisphere and clockwise in the Southern...

The heating of the Earth by the sun causes daily changes in both the direction and speed of the wind. During the day, ground...

Ball lightning appears during thunderstorms, taking the shape of glowing, electric orbs in the sky. It can appear in a variety...

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