It rains in Chengdu and arrives at the street office accurately. Why is the local rainfall area small?

The rain in Chengdu is accurate to the street office. The reason why there will be a very small area of local rainfall is firstly because the clouds are moving, secondly, the water evaporation in some areas is relatively small, thirdly, the overlap of some clouds is greater than the air resistance, and thirdly, it is a small probability event. It is necessary to explain and analyze why there is a very small area of local rainfall from the following four aspects.

First, because the clouds are moving.

First of all, because clouds are moving, clouds will move with the magnitude of wind, and the earth is also rotating, so the clouds move counterclockwise to the naked eye.

Second, water evaporation in some areas is relatively small.

Secondly, the water evaporation in some areas is relatively small, because for some areas, if there are no lakes or rivers, the water evaporation is relatively small, which makes the water circulation rate relatively low, so the rainfall is also very small for some areas.

Third, the overlapping attraction of some clouds is greater than the air resistance.

In addition, the overlapping attraction of some clouds is greater than the air resistance. For clouds, if there is a lot of water vapor and the density is high enough, it should rain heavily, so it will rain in some areas and it will not rain in some areas.

Fourth, it is a small probability event.

In addition, it is a small probability event, which is also a small probability for local areas. Because it is a large-scale rainfall under normal circumstances, this situation is rarely encountered, and it will not cause waterlogging in some cities.

Matters needing attention of urban meteorological bureau:

We should report a corresponding weather situation clearly in advance, and notify the corresponding people in time if there are some abnormal situations, so that the corresponding people can make better preparations in advance and solve some problems in a targeted manner, so that some natural disasters will not occur.