Traditional Culture Encyclopedia - Weather forecast - Why does it rain before warm wind and after cold wind? Isn't it sunny when the temperature rises or falls after the warm front and the cold front?
Why does it rain before warm wind and after cold wind? Isn't it sunny when the temperature rises or falls after the warm front and the cold front?
Hot air tends to rise and cold air tends to fall, so at the warm front, that is, when the warm air mass is strong, it moves to the cold air mass. At this time, cold air masses first meet at high altitude, so the same vertical plane is controlled by different air masses, forming rainfall. With the passage of time, the location where cold air masses meet is decreasing, which means that the wind on the ground is getting stronger and stronger, and the rainfall is gradually decreasing until the cold air masses completely reach the ground, the warm air masses are completely controlled, the wind stops and the weather turns fine.
The cold front is that the two sides meet on the ground first, so there is wind first, and then it begins to rain as the meeting position rises, until the warm air mass completely leaves, the cold air mass is controlled, the rain stops, the weather clears and the temperature drops.
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