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What is Occluded Front?

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

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Glossary

An instrument that continuously records atmospheric pressure over time. It uses a barometer to measure pressure and creates...

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

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

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

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

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

An anvil is a cloud mostly composed of ice particles. Otherwise known as a cumulonimbus cloud, an anvil has reached the stratospheric...

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

A thermodynamic change process in the system without any exchange of heat or transfer of energy between systems. This process...