One of the earliest forecasting tools was the use of atmospheric pressure. Soon, after the invention of the barometer, it was found that there were natural fluctuations in air pressure even if the barometer was kept at the same elevation. During times of stormy weather the barometric pressure would tend to be lower.
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Yes, air pressure is affected by temperature.When the temperature is higher the air pressure lowers and the weight of the air is lower. When air is warmer the molecules sperate and there are less molecules that can cause pressure.
pressure difference
Gas particles in the air contribute to air pressure. The molecules constantly collide with each other and with surfaces, exerting a force per unit area, which we perceive as pressure. The more gas particles present in a given space, the higher the air pressure will be.
yes they do
In a high pressure system air sinks and is compressed. As the air is compressed it heats up, which can cause clouds to evaporate.