Atmospheric pressure needs to increase.
To cause a barometer to rise, high pressure and sinking air must dominate the atmosphere. High pressure occurs when air is sinking and compressing, leading to clear skies and generally fair weather conditions. This sinking air prevents the formation of clouds and causes the barometric pressure to rise.
There has to be cold winds in the upper atmospheric layers.
cells react to become stable
Thunderstorms are created by atmospheric instability. They are most commonly caused by warm, moist air colliding with cool, dry air.
The troposphere.
dry,windy conditions
Afternoon thunderstorms tend not to occur in stable atmospheric conditions.
There has to be cold winds in the upper atmospheric layers.
Snowfall
The air will become lighter causing the barometer to fall. the opposite will occur for cold air.
Dust storms are most likely to occur on hot summer days under certain atmospheric conditions, so meteorologists can frequently predict the possibility of these storms.
cells react to become stable
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what are the atmospheric process that take place in the mountains
rain occurs in low atmospheric pressure.
Thunderstorms are created by atmospheric instability. They are most commonly caused by warm, moist air colliding with cool, dry air.
Troposphere
The troposphere.