The weather is dry in July and August, 2022. Why didn't Ningde rain with rockets?

The so-called artificial rainfall is to artificially intervene the clouds that may rain or are raining in the air to increase precipitation, so it is more scientific to call it artificial precipitation enhancement. Weather modification is not "calling for rain", but affecting the weather rather than creating it. Artificial precipitation enhancement requires certain meteorological conditions, and only suitable meteorological conditions can be used for artificial precipitation enhancement. Artificial precipitation enhancement operations also need to apply for airspace from civil aviation and military airports, otherwise operations cannot be carried out. Under normal circumstances, the water on the ground is turned into steam and evaporated into the air after being irradiated by sunlight. Water vapor condenses into small water droplets when it meets cold air at high altitude. These small water droplets are held up in the air by the updraft in the air, forming clouds. When the small water droplets gather and condense, and the updraft "can't hold", it becomes raindrops and falls to the ground. In other words, artificial precipitation enhancement is not "out of thin air", and only when there are certain clouds and water in the air can artificial methods play a role.