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

The belt between 50-70 ° N and S latitudes in the Northern and Southern Hemispheres, adjacent to the Polar Region. Although...

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

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

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

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

Any form of water - liquid or solid - that falls from the atmosphere to the Earth's surface, including rain, snow, sleet,...

The formation of ice crystals on surfaces when the temperature drops below freezing, typically overnight, causing potential...

A distinct layer in a body of water where the temperature changes rapidly with depth, separating warmer surface water from...

A type of low-altitude cloud that forms in uniform layers, often covering the entire sky and producing overcast conditions.