Dark blue cloudy sky

What is Isobar?

A line on a weather map connecting points of equal atmospheric pressure, used to identify high and low-pressure systems.

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Glossary

A low-pressure area with converging winds, rotating counterclockwise in the Northern Hemisphere and clockwise in the Southern...

The names given to the winds blowing from the four cardinal directions (north, east, south, and west - N, E, S, W) on a compass.

Particles such as pollen, grass seeds, or dust in the air that cause allergies and are transported by winds.

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

The decrease in temperature with height in an adiabatically rising air parcel (lapse rate). For dry air, this value is 1...

Weather conditions are the components that comprise the state of the atmosphere. The six main weather conditions are temperature,...

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...

A polar vortex is a circulating mass of air in the atmosphere, typically found in polar regions. This rotating air mass occurs...

A weather front where two air masses meet but neither is strong enough to move the other, often resulting in prolonged periods...