The foggy weather is very good.

The climate is sunny for a long time and the atmosphere is dull, so it is not easy to form fog. If there is fog, it means that there is a warm and humid atmosphere flowing in from other places. As long as the cold atmosphere in the south goes south, it will turn rainy, so there is a saying that "it will be cloudy for a long time." On the contrary, if the rainy climate is maintained for a long time, the sudden fog, that is, the fog that appears after the rain clears at night, will radiate and cool down. After the fog cleared, the weather was still fine. Therefore, there is a saying that it will clear up after a long rain and fog.

Long-term fine fog means that the warm and humid airflow comes and meets the boring air mass in other places, and the pioneer forms fog and gradually develops into rain; After a long period of rain and fog, it is clear that the atmospheric convection is weakened, the front is gradually separated from this place, and the sunny weather is gradually coming.

The long fog clarified that a large amount of water had accumulated in the atmosphere. In the absence of wind, it still didn't disperse. The atmosphere can't hold enough water molecules, so it's going to rain. On the contrary, some water molecules that can't stop in the atmosphere fall into the air in the form of rain, and many water molecules in the fog are also brought into the air, so the moisture in the atmosphere is greatly reduced, and it is another sunny day.