What is Heat Index?

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

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Glossary

A large, organized thunderstorm with a rotating updraft, often producing severe weather such as tornadoes, hail, and heavy...

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

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

A tropical cyclone, also called a hurricane, is a severe tropical storm with wind speeds in excess of 74 mph. Known as a...

Confluence refers to the area where two or more air streams or bodies of water meet and combine. In meteorology, it often...

The amount of radiation, heat, or light passing through or flowing from a unit area of a surface.

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

The lowest level of a given cloud or cloud layer in the atmosphere, relative to the observer's position above the ground.

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...

Istanbul 4°CAnkara 0°CIzmir 9°CHow is your weather?