Weather Concepts

Front

Weather

Back

The state or condition of the variables of the atmosphere at any given location for a short period of time

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Relative Humidity

Back

The ratio of the amount of water vapor in the air to the greatest amount the air can hold

Front

Barometric Pressure

Back

The pressure due to the weight of the overlying atmosphere pushing down on any given area

Front

Dew Point

Back

The temperature the air needs to be cooled to (at constant pressure) in order to achieve a relative humidity (RH) of 100%

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Cloud

Back

A collection of liquid water droplets and or ice crystals suspended in the atmosphere and dense enough to be visible

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Fog

Back

A cloud that is on, or just above Earth’s surface

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Warm Front

Back

Warm air moves into an area formerly covered by cooler air

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Cold Front

Back

Cold, dense air moves into a region occupied by warmer air

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Occluded Front

Back

When an active cold front overtakes a warm front

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Isobar

Back

Isoline that connects equal air pressures