air pressure what does air pressure have to do with weather?

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Air Pressure What does air pressure have to do with weather?

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Page 1: Air Pressure What does air pressure have to do with weather?

Air Pressure

What does air pressure have to do with weather?

Page 2: Air Pressure What does air pressure have to do with weather?

Air Pressure

Air pressure is the result of the mass/weight of the air and temperature pushing on its surroundings. (atmospheric pressure)

Measured using a BAROMETER

Page 3: Air Pressure What does air pressure have to do with weather?

Do weather forecasters use air pressure to predict the weather?

High pressure areas are formed when air is cooled.

- Cool air SINKS.

Low pressure is formed when air is warmed.- Warm air RISES.

Page 4: Air Pressure What does air pressure have to do with weather?

Air Pressure

• High Pressure is associated with nice weather. Sunny and dry.

• Low pressure is associated with “bad” weather. Rainy, stormy, cloudy and/or humid.

Page 5: Air Pressure What does air pressure have to do with weather?

Air Pressure & Frizz!

• Ever wonder why curly hair gets frizzy when its humid while straight hair gets flat?– Because of AIR PRESSURE!– On humid days, low air air pressure causes curly hair to

“spring” up and out more than normal creating frizz.– On humid days low air pressure causes already straight

hair to lay flat because it “sucks in” all the moisture in the air!