When does a region have clear weather
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The absence of wind in high pressure is due to the lack of an air-pressure gradient. ... Because rising air cools and results in the condensation of water vapor, which is the reason for clouds and precipitation, downward-moving air and high pressure usually brings mostly clear skies.
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A region have clear weather
Explanation:
- In general, subsidence will dry out an air mass by adiabatic or compressional heating. Thus, high pressure typically brings clear skies.
- During the day, since no clouds are present to reflect sunlight, there is more incoming shortwave solar radiation and temperatures rise.
- The descending air is warmed by compression, causing cloud water vaporize to water vapor thus frequently giving good weather.
- A low-pressure area is where the atmospheric pressure lower with respect to its surroundings. Therefore, bad weather generally occurs in low-pressure area.
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