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

A drainage wind that flows downhill due to gravity, often associated with cold air descending from elevated regions.

A weather warning means that a weather hazard is occurring, imminent, or likely. In other words, severe weather is happening...

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

A measure of how hot it feels when relative humidity is combined with the actual air temperature, often referred to as the...

Cloud or rain droplets containing pollutants, such as oxides of sulfur and nitrogen, to make them acidic.

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

Meteorology is the scientific study of the atmosphere and weather processes. It involves observing, analyzing, and forecasting...

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

Condensation pressure deficit refers to the difference between the actual vapor pressure and the saturation vapor pressure...