Decreaseing air pressure
Decreasing Air Presser
To study and describe weather you have to use geography, because weather doesn't happen in isolation. Weather is rain falling on the mountains, or the plains, or the oceans. You always say where it is. Geography also affects the weather. A range of hills means that clouds approaching them are forced to rise. Rising clouds usually drop their rain, which is why the windward sides of mountains are usually wetter than the leeward sides.
If air pressure is rising (called a "rising barometer") it indicates fair weather coming.
A barometer measures air-pressure (baro-meter) so a rising reading means the local air pressure is increasing. If we assume that your local gravity is constant (it usually is) then the increasing air pressure is caused by the air getting denser; more kilograms per cubic metre or pounds per pint. That could be because the air is getting colder, or because it has less water content, since making air colder makes it denser, and dry air is denser than wet air. So, a rising barometer suggests a spell of cool dry weather.A rising barometer indicates that the air pressure is rising and this is associated with clear skies with few cloud formations. Generally this will mean it is hotter than average in summer, but colder than average in winter.A rising barometer means higher pressure which means less clouds and fairer weather.
It indicates wind shear, which doesn't affect the earth's core much.
Decreasing Air Presser
Usually rising air pressure means that the weather will improve.
It means that the pressure is increasing. High pressure usually brings stable, fine weather.
Changes in the barometric pressure indicate a change in the weather. A rising barometric pressure usually indicates clear, stable weather.
To study and describe weather you have to use geography, because weather doesn't happen in isolation. Weather is rain falling on the mountains, or the plains, or the oceans. You always say where it is. Geography also affects the weather. A range of hills means that clouds approaching them are forced to rise. Rising clouds usually drop their rain, which is why the windward sides of mountains are usually wetter than the leeward sides.
If air pressure is rising (called a "rising barometer") it indicates fair weather coming.
When air pressure is rising, it means that a high pressure area is coming in your direction. High pressure areas tend to bring very sunny and calm weather so the weather should improve when the air pressure is rising
Higher Air Pressure
A barometer measures air-pressure (baro-meter) so a rising reading means the local air pressure is increasing. If we assume that your local gravity is constant (it usually is) then the increasing air pressure is caused by the air getting denser; more kilograms per cubic metre or pounds per pint. That could be because the air is getting colder, or because it has less water content, since making air colder makes it denser, and dry air is denser than wet air. So, a rising barometer suggests a spell of cool dry weather.A rising barometer indicates that the air pressure is rising and this is associated with clear skies with few cloud formations. Generally this will mean it is hotter than average in summer, but colder than average in winter.A rising barometer means higher pressure which means less clouds and fairer weather.
Good weather usually means more activities. Bad weather means cancellation.
high pressure usually means good weather
Low pressure is associated with rising air, cloudiness, and precipitation.