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What is Absolute Humidity?

The measure of the water vapor or moisture content in the air, expressed as the mass of water vapor per unit volume of air. It indicates the actual amount of water vapor present, without considering temperature or pressure variations.

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Glossary

A line of severe thunderstorms that can form along or ahead of a cold front, often producing strong winds and heavy rain.

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

The occurrence of storms resulting from the horizontal advection of cold air at high levels or the horizontal advection of...

A sudden electrostatic discharge during a thunderstorm between electrically charged regions of a cloud, between clouds, or...

A strong, downward wind caused by a localized column of air sinking rapidly, often resulting in damage similar to that caused...

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

The jet stream forming the boundary between tropical air and sub-tropical air, characterized by isothermal compression and...

A periodic cooling of sea surface temperatures in the central and eastern Pacific Ocean, often leading to altered global...

A type of cloud consisting mostly of small particles such as ice particles.

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