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decreasing

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Kevin Greenfelder

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2y ago
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6y ago

Humid air is hot and associated with cyclonic systems. For this reason the pressure will decrease and the barometer will fall.

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14y ago

Since colder air is denser than warm air, the pressure will usually rise.

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6y ago

Humid air is warm, warm air expands so the barometric pressure will fall.

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14y ago

decreasing

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13y ago

Decreases

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Q: What happens to a barometer when a cold front comes in?
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Related questions

When a cold front comes through what happens to the warm air?

When a cold front hits, usually the warm air rises.


What happens when a cold front comes in to a warm front?

It pretty much sits still as the Warm Front passes 'overhead'. It will get pushed back/up a bit.


What happens when a warm front moves into a cold front?

warm front rises on top of the cold front.


What happens to cold air when a warm front comes in?

It pretty much sits still as the Warm Front passes 'overhead'. It will get pushed back/up a bit.


What two units of air pressure are used commonly in weather reports?

The answer to this question is, the Mercury and aneroid barometer


Does precipitation come before or after a warm front?

Not normally before a warm front, precipitation comes before and after a cold front. When you have warm air and a cold front comes through, you mix warm with cold and that brings precipitation.


What happens to the temperature and humidity in a cold front?

Temperature is lowered. Humidity is increased in a cold front.


How would a barometer reading change with a cold front?

A barometer reading would change with a cold front because the density of mercury will change with temperature, so a reading must be adjusted for the temperature of the instrument. For this purpose a mercury thermometer is usually mounted on the instrument. Temperature compensation of an aneroid barometer is accomplished by including a bi-metal element in the mechanical linkages. Aneroid barometers sold for domestic use typically have no compensation.


Would it be hot or cold if a barometer was dropping?

A barometer does not measure temperature it measures pressure.


What happened to a barometer levels when there you cold weather?

during cold weather like rain storms or snow storms the barometer goes down. During warm weather the barometer goes up.


Does precipitation come before or after a cold front?

Precipitation usually comes before or during the passage of a cold front.


How does air mass effect cold front?

When the cold front comes, the air mass gets lighter and thinner.