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

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

A strong wind typically ranging from 34 to 40 knots (39 to 46 miles per hour) and often associated with rough seas and stormy...

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

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

A cold front is the leading edge of a cold air mass that replaces a warmer air mass. It is typically associated with sudden...

An image on the weather radar that is convex to the direction of movement and resembles an arc shape, caused by mesoscale...

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

A weather front where two air masses meet but neither is strong enough to move the other, often resulting in prolonged periods...

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

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